1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.370.2.5.2.5 2023/10/06 23:03:46 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: $postingform .= (<<ENDDISCUSS);
1007: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
1008: <input type="submit" name="anondiscuss" value="$lt{'poan'}" /> <input type="hidden" name="symb" value="$ressymb" />
1009: <input type="hidden" name="sendit" value="true" />
1010: <input type="hidden" name="timestamp" value="$now" />
1011: <a name="newpost"></a>
1012: <font size="1">$lt{'note'}</font><br />
1013: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br />
1014: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
1015: ENDDISCUSS
1016: if ($env{'form.origpage'}) {
1017: $postingform .= '<input type="hidden" name="origpage" value="'.
1018: $env{'form.origpage'}.'" />'."\n";
1019: foreach my $att (@{$currnewattach}) {
1020: $postingform .= '<input type="hidden" name="currnewattach" '.
1021: 'value="'.$att.'" />'."\n";
1022: }
1023: }
1024: if (exists($env{'form.ref'})) {
1025: $postingform .= '<input type="hidden" name="ref" value="'.
1026: $env{'form.ref'}.'" />';
1027: }
1028: if ($group ne '') {
1029: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
1030: }
1031: my $blockblog = &Apache::loncommon::blocking_status('blogs');
1032: if (!$blockblog) {
1033: $postingform .= &add_blog_checkbox($crstype);
1034: }
1035: $postingform .= "</form>\n";
1036: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
1037: $now,$currnewattach,
1038: $currdelold,'',$mode,
1039: $blockblog);
1040: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
1041: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
1042: if (@{$currnewattach} > 1) {
1043: $newattachmsg .= '<ol>';
1044: foreach my $item (@{$currnewattach}) {
1045: $item =~ m#.*/([^/]+)$#;
1046: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
1047: }
1048: $newattachmsg .= '</ol>'."\n";
1049: } else {
1050: $$currnewattach[0] =~ m#.*/([^/]+)$#;
1051: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
1052: }
1053: }
1054: $postingform .= $newattachmsg;
1055: $postingform .= &generate_preview_button();
1056: return $postingform;
1057: }
1058:
1059: sub build_posting_display {
1060: 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) = @_;
1061: my @original=();
1062: my @index=();
1063: my $skip_group_check = 0;
1064: my $symb=&Apache::lonenc::check_decrypt($ressymb);
1065: my $escsymb=&escape($ressymb);
1066: # These are the discussion contributions
1067: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1068: $env{'course.'.$env{'request.course.id'}.'.domain'},
1069: $env{'course.'.$env{'request.course.id'}.'.num'});
1070: my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
1071: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
1072: if ($seeid || $canvote) {
1073: # And these are the likes/unlikes
1074: %likes=&Apache::lonnet::dump('disclikes',
1075: $env{'course.'.$env{'request.course.id'}.'.domain'},
1076: $env{'course.'.$env{'request.course.id'}.'.num'},
1077: '^'.$symb.':');
1078: # Array with likes to figure out averages, etc.
1079: @theselikes=();
1080: # Hashes containing likes and unlikes for this user.
1081: %userlikes=();
1082: %userunlikes=();
1083: }
1084: # Is the user allowed to see the real name behind anonymous postings?
1085: my $see_anonymous =
1086: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1087:
1088: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
1089: $skip_group_check = 1;
1090: }
1091: # Deletions and hiddens are just lists. Split them up into a hash for quicker lookup
1092: my (%deletions,%hiddens);
1093: if ($contrib{'deleted'}) {
1094: my $deleted = $contrib{'deleted'};
1095: $deleted =~ s/^\.//;
1096: $deleted =~ s/\.$//;
1097: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
1098: }
1099: if ($contrib{'hidden'}) {
1100: my $hidden = $contrib{'hidden'};
1101: $hidden =~ s/^\.//;
1102: $hidden =~ s/\.$//;
1103: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
1104: }
1105: # Versions if store/restore are used to actually store the messages.
1106: if ($contrib{'version'}) {
1107: my $oldest = $contrib{'1:timestamp'};
1108: if ($prevread eq '0') {
1109: $prevread = $oldest-1;
1110: }
1111: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
1112: if ($sortposts) {
1113: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
1114: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
1115: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
1116: }
1117: my %votestyle;
1118: if ($seeid || $canvote) {
1119: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
1120: for (my $id=1;$id<=$contrib{'version'};$id++) {
1121: my $idx=$id;
1122: next if ($contrib{$idx.':deleted'});
1123: next if ($contrib{$idx.':hidden'});
1124: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
1125: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1126: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1127: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1128: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1129: $userlikes{$idx} = 1;
1130: }
1131: }
1132: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1133: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1134: $userunlikes{$idx} = 1;
1135: }
1136: }
1137: }
1138: }
1139: }
1140: # Figure out average likes and standard deviation if there are enough
1141: # discussions to warrant that
1142: my $ave=0;
1143: my $stddev=10000;
1144: if ($#theselikes>1) {
1145: my $sum=0;
1146: my $num=$#theselikes+1;
1147: foreach my $thislike (@theselikes) {
1148: $sum+=$thislike;
1149: }
1150: $ave=$sum/$num;
1151: my $sumsq=0;
1152: foreach my $thislike (@theselikes) {
1153: $sumsq+=($thislike-$ave)*($thislike-$ave);
1154: }
1155: $stddev=sqrt($sumsq/$num);
1156: }
1157: # Now we know the average likes $ave and the standard deviation $stddev
1158: # Get the boundaries for markup
1159: $oneplus=$ave+$stddev;
1160: $twoplus=$ave+2.*$stddev;
1161: $oneminus=$ave-$stddev;
1162: $twominus=$ave-2.*$stddev;
1163: if ($#theselikes>1) {
1164: foreach my $class ('twoplus','oneplus','zero','oneminus','twominus') {
1165: my $fontstyle = $env{'course.'.$env{'request.course.id'}.'.discussion_post_fonts_'.$class};
1166: if ($fontstyle ne '') {
1167: my ($size,$weight,$style,$other) = split(/,/,$fontstyle);
1168: if ($size ne '') {
1169: $votestyle{$class} .= 'font-size: '.$size.';';
1170: }
1171: if ($weight ne '') {
1172: $votestyle{$class} .= 'font-weight: '.$weight.';';
1173: }
1174: if ($style ne '') {
1175: $votestyle{$class} .= 'font-style: '.$style.';';
1176: }
1177: if ($other ne '') {
1178: $votestyle{$class} .= $other;
1179: }
1180: if ($votestyle{$class} ne '') {
1181: $votestyle{$class} = 'style="'.$votestyle{$class}.'"';
1182: }
1183: }
1184: }
1185: }
1186: }
1187: #
1188: # This is now the real loop. Go through all entries, pick up what we need
1189: #
1190: for (my $id=1;$id<=$contrib{'version'};$id++) {
1191: my $idx=$id;
1192: next if ($contrib{$idx.':deleted'});
1193: next if ($contrib{$idx.':hidden'});
1194: # 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
1195: # previous edits, but it counts as one entry
1196: my $posttime = $contrib{$idx.':timestamp'};
1197: if ($prevread <= $posttime) {
1198: $$newpostsflag = 1;
1199: }
1200: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1201: my $origindex='0.';
1202: my $numoldver=0;
1203: if ($contrib{$idx.':replyto'}) {
1204: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1205: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1206: # this is a follow-up message
1207: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1208: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1209: $origindex=$index[$contrib{$idx.':replyto'}];
1210: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1211: } else {
1212: $original[$idx]=0;
1213: $$depth[$idx]=0;
1214: }
1215: } else {
1216: # this is an original message
1217: $original[$idx]=0;
1218: $$depth[$idx]=0;
1219: }
1220: if ($$replies[$$depth[$idx]]) {
1221: $$replies[$$depth[$idx]]++;
1222: } else {
1223: $$replies[$$depth[$idx]]=1;
1224: }
1225: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx})) {
1226: $$visible++;
1227: if ($contrib{$idx.':history'}) {
1228: if ($contrib{$idx.':history'} =~ /:/) {
1229: my @oldversions = split(/:/,$contrib{$idx.':history'});
1230: $numoldver = @oldversions;
1231: } else {
1232: $numoldver = 1;
1233: }
1234: }
1235: $$current = $numoldver;
1236: my %messages = ();
1237: my %subjects = ();
1238: my %attachtxt = ();
1239: my %allattachments = ();
1240: my ($screenname,$plainname,$showaboutme);
1241: my $sender = &mt('Anonymous');
1242: # Anonymous users getting number within a discussion
1243: # Since idx is in static order, this should give the same sequence every time.
1244: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1245: unless ($$anonhash{$key}) {
1246: $anoncnt++;
1247: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1248: }
1249: my ($message,$subject,$vgrlink,$ctlink);
1250: &get_post_contents(\%contrib,$idx,$seeid,$seehidden,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1251:
1252:
1253: # Set up for sorting by subject
1254: unless ($outputtarget eq 'export') {
1255: $message=$messages{$numoldver};
1256: $message.=$attachtxt{$numoldver};
1257: $subject=$subjects{$numoldver};
1258: if ($message) {
1259: if ($hiddens{$idx}) {
1260: $message='<font color="#888888">'.$message.'</font>';
1261: if ($studenthidden) {
1262: $message .='<br /><br />Deleted by poster (student).';
1263: }
1264: }
1265:
1266: if ($subject eq '') {
1267: if (defined($$subjectsort{'__No subject'})) {
1268: push(@{$$subjectsort{'__No subject'}}, $idx);
1269: } else {
1270: @{$$subjectsort{'__No subject'}} = ("$idx");
1271: }
1272: } else {
1273: if (defined($$subjectsort{$subject})) {
1274: push(@{$$subjectsort{$subject}}, $idx);
1275: } else {
1276: @{$$subjectsort{$subject}} = ("$idx");
1277: }
1278: }
1279: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1280: if ($showaboutme) {
1281: $sender = &Apache::loncommon::aboutmewrapper(
1282: $plainname,
1283: $contrib{$idx.':sendername'},
1284: $contrib{$idx.':senderdomain'});
1285: } else {
1286: $sender = $plainname;
1287: }
1288: if ($see_anonymous) {
1289: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1290: $contrib{$idx.':senderdomain'}.')';
1291: }
1292: $sender = '<b>'.$sender.'</b>';
1293: if ($contrib{$idx.':anonymous'}) {
1294: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1295: $screenname;
1296: }
1297: if ($see_anonymous) {
1298: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1299: }
1300: # Set up for sorting by domain, then username
1301: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1302: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1303: }
1304: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1305: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1306: } else {
1307: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1308: }
1309: # Set up for sorting by last name, then first name
1310: my %names = &Apache::loncommon::getnames($contrib{$idx.':sendername'},
1311: $contrib{$idx.':senderdomain'});
1312: my $lastname = $names{'lastname'};
1313: my $firstname = $names{'firstname'};
1314: if ($lastname eq '') {
1315: $lastname = '_';
1316: }
1317: if ($firstname eq '') {
1318: $firstname = '_';
1319: }
1320: unless (defined($$namesort{$lastname})) {
1321: %{$$namesort{$lastname}} = ();
1322: }
1323: if (defined($$namesort{$lastname}{$firstname})) {
1324: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1325: } else {
1326: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1327: }
1328: if ($outputtarget ne 'tex') {
1329: # Add karma stars
1330: my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
1331: for (my $i=1;$i<=$karma;$i++) {
1332: $sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
1333: }
1334: # Can people edit this?
1335: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1336: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1337: $sender.=' '.
1338: &discussion_link($ressymb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1339: unless ($seehidden) {
1340: my $grpargs = &group_args($group);
1341: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1342: $sender .= '">'.&mt('Delete').'</a>';
1343: }
1344: }
1345: }
1346: if ($seehidden) {
1347: if ($hiddens{$idx}) {
1348: unless ($studenthidden) {
1349: $sender.=' '.
1350: &discussion_link($ressymb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
1351: }
1352: } else {
1353: $sender.=' '.
1354: &discussion_link($ressymb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
1355: }
1356: my $grpargs = &group_args($group);
1357: $sender.=
1358: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1359: $sender .= &mt('Delete').'</a>';
1360: }
1361: }
1362: } else {
1363: if ($screenname) {
1364: $sender='<i>'.$screenname.'</i>';
1365: } else {
1366: $sender='<i>'.$$anonhash{$key}.'</i>';
1367: }
1368: $sender = '<b>'.$sender.'</b>';
1369: # Set up for sorting by domain, then username for anonymous
1370: unless (defined($$usernamesort{'__anon'})) {
1371: %{$$usernamesort{'__anon'}} = ();
1372: }
1373: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1374: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1375: } else {
1376: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1377: }
1378: # Set up for sorting by last name, then first name for anonymous
1379: unless (defined($$namesort{'__anon'})) {
1380: %{$$namesort{'__anon'}} = ();
1381: }
1382: if (defined($$namesort{'__anon'}{'__anon'})) {
1383: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1384: } else {
1385: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1386: }
1387: }
1388: if ($outputtarget ne 'tex') {
1389: if (&discussion_open($status)) {
1390: if (($group ne '') &&
1391: (&check_group_priv($group,'pgd') eq 'ok')) {
1392: $sender.=' '.
1393: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1394: } elsif (&Apache::lonnet::allowed('pch',
1395: $env{'request.course.id'}.
1396: ($env{'request.course.sec'}?'/'.
1397: $env{'request.course.sec'}:''))) {
1398: $sender.=' '.
1399: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
1400: }
1401: }
1402: if ($viewgrades) {
1403: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1404: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1405: }
1406: if ($$dischash{$readkey}=~/\.$idx\./) {
1407: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1408: } else {
1409: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1410: }
1411: }
1412: }
1413: #figure out at what position this needs to print
1414: }
1415: if ($outputtarget eq 'export' || $message) {
1416: my $thisindex=$idx;
1417: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1418: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1419: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1420: }
1421: $$alldiscussion{$thisindex}=$idx;
1422: $$shown{$idx} = 0;
1423: $index[$idx]=$thisindex;
1424: }
1425: if ($outputtarget eq 'export') {
1426: %{$$imsitems{$idx}} = ();
1427: $$imsitems{$idx}{'isvisible'}='true';
1428: if ($hiddens{$idx}) {
1429: $$imsitems{$idx}{'isvisible'}='false';
1430: }
1431: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1432: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1433: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1434: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1435: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1436: $contrib{$idx.':sendername'}.':'.
1437: $contrib{$idx.':senderdomain'}.')';
1438: $$imsitems{$idx}{'isanonymous'}='false';
1439: if ($contrib{$idx.':anonymous'}) {
1440: $$imsitems{$idx}{'isanonymous'}='true';
1441: }
1442: $$imsitems{$idx}{'currversion'}=$numoldver;
1443: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1444: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1445: $$shown{$idx} = 1;
1446: }
1447: } else {
1448: if ($message) {
1449: my $spansize = 2;
1450: my ($uname,$udom);
1451: if ($showonlyunread && $prevread > $posttime) {
1452: $$notshown{$idx} = 1;
1453: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1454: $$notshown{$idx} = 1;
1455: } else {
1456: # apply filters
1457: $uname = $contrib{$idx.':sendername'};
1458: $udom = $contrib{$idx.':senderdomain'};
1459: my $poster = $uname.':'.$udom;
1460: if ($env{'form.totposters'} ne '') {
1461: if ($totposters == 0) {
1462: $$shown{$idx} = 0;
1463: } elsif ($totposters > 0) {
1464: if (grep/^$poster$/,@{$posters}) {
1465: $$shown{$idx} = 1;
1466: }
1467: }
1468: } elsif ($sortposts) {
1469: if ($skiptest) {
1470: $$shown{$idx} = 1;
1471: } else {
1472: foreach my $role (@{$$roleinfo{$poster}}) {
1473: if ($role =~ /^cc:/) {
1474: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1475: if ($role =~ /$cc_regexp/) {
1476: $$shown{$idx} = 1;
1477: last;
1478: }
1479: } elsif ($role =~ /^$rolematch$/) {
1480: $$shown{$idx} = 1;
1481: last;
1482: }
1483: }
1484: }
1485: if ($$shown{$idx} && !$skip_group_check) {
1486: my $showflag = 0;
1487: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1488: foreach my $grp (@{$grouppick}) {
1489: if (grep/^\Q$grp\E$/,
1490: keys(%{$$classgroups{$poster}{active}})) {
1491: $showflag = 1;
1492: last;
1493: }
1494: }
1495: }
1496: if ($showflag) {
1497: $$shown{$idx} = 1;
1498: } else {
1499: $$shown{$idx} = 0;
1500: }
1501: }
1502: } else {
1503: $$shown{$idx} = 1;
1504: }
1505: }
1506: unless ($$notshown{$idx} == 1) {
1507: if ($prevread > 0 && $prevread <= $posttime) {
1508: $$newitem{$idx} = 1;
1509: $$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
1510: } else {
1511: $$newitem{$idx} = 0;
1512: }
1513: $$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
1514: $sender.' '.$vgrlink.' ('.
1515: &Apache::lonlocal::locallocaltime($posttime).')';
1516: if ($$dischash{$toggkey}) {
1517: $$discussionitems[$idx].=' '.$ctlink;
1518: }
1519: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1520: my $likestyle;
1521: if ($seeid || $canvote) {
1522: # Figure out size based on likes
1523: my $class = 'zero';
1524: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1525: if ($thislikes>$twoplus) {
1526: $class = 'twoplus';
1527: } elsif ($thislikes>$oneplus) {
1528: $class = 'oneplus';
1529: }
1530: if ($thislikes<$twominus) {
1531: $class = 'twominus';
1532: } elsif ($thislikes<$oneminus) {
1533: $class = 'oneminus';
1534: }
1535: $likestyle = $votestyle{$class};
1536: }
1537: # Actually glue in the message itself
1538: $$discussionitems[$idx].= '<br /><blockquote>'.
1539: "<div $likestyle>".
1540: $message.
1541: '</div></blockquote>';
1542: if ($canvote) {
1543: my $ownpost;
1544: if (($uname eq $env{'user.name'}) &&
1545: ($udom eq $env{'user.domain'})) {
1546: $ownpost = 1;
1547: }
1548: # Put in the like and unlike buttons
1549: if ($ownpost || (($hiddens{$idx}) && ($seehidden))) {
1550: my $novote;
1551: if ($ownpost) {
1552: $novote = &mt('No voting for your own posts.');
1553: } else {
1554: $novote = &mt('No voting for hidden posts.');
1555: }
1556: &html_escape(\$novote);
1557: $$discussionitems[$idx].=
1558: '<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
1559: '<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
1560: '<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
1561:
1562: } else {
1563: if ($userlikes{$idx}) {
1564: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1565: } else {
1566: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1567: }
1568: if ($userunlikes{$idx}) {
1569: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1570: } else {
1571: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1572: }
1573: }
1574: }
1575: if ($seeid || $canvote) {
1576: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1577: if ($thislikes>0) {
1578: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1579: } elsif ($thislikes<0) {
1580: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1581: }
1582: }
1583: # If there is any history to this post, inform the reader
1584: if ($contrib{$idx.':history'}) {
1585: my @postversions = ();
1586: $$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
1587: if ($seehidden) {
1588: $$discussionitems[$idx] .= ' '.
1589: &discussion_link($ressymb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
1590: }
1591: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1592: if ($contrib{$idx.':history'} =~ m/:/) {
1593: @postversions = split(/:/,$contrib{$idx.':history'});
1594: } else {
1595: @postversions = ("$contrib{$idx.':history'}");
1596: }
1597: for (my $i=0; $i<@postversions; $i++) {
1598: my $version = $i+1;
1599: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1600: }
1601: }
1602: # end of unless ($$notshown ...)
1603: }
1604: # end of if ($message) ...
1605: }
1606: # end of the else-branch of target being export
1607: }
1608: # end of unless hidden or deleted
1609: }
1610: # end of the loop over all discussion entries
1611: }
1612: # end of "if there actually are any discussions
1613: }
1614: # end of subroutine "build_posting_display"
1615: }
1616:
1617: sub filter_regexp {
1618: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1619: my ($roleregexp,$secregexp,$statusregexp);
1620: my $skiptest = 1;
1621: if (@{$rolefilter} > 0) {
1622: my @okrolefilter = ();
1623: foreach my $role (@{$rolefilter}) {
1624: unless ($role eq '') {
1625: push(@okrolefilter, $role);
1626: }
1627: }
1628: if (@okrolefilter > 0) {
1629: if (grep/^all$/,@okrolefilter) {
1630: $roleregexp='[^:]+';
1631: } else {
1632: if (@okrolefilter == 1) {
1633: $roleregexp=$okrolefilter[0];
1634: } else {
1635: $roleregexp='('.join('|',@okrolefilter).')';
1636: }
1637: $skiptest = 0;
1638: }
1639: }
1640: }
1641: if (@{$sectionpick} > 0) {
1642: my @oksectionpick = ();
1643: foreach my $sec (@{$sectionpick}) {
1644: unless ($sec eq '') {
1645: push(@oksectionpick, $sec);
1646: }
1647: }
1648: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1649: if (@oksectionpick == 1) {
1650: $secregexp = $oksectionpick[0];
1651: } else {
1652: $secregexp .= '('.join('|',@oksectionpick).')';
1653: }
1654: $skiptest = 0;
1655: } else {
1656: $secregexp .= '[^:]*';
1657: }
1658: }
1659:
1660: if (defined($statusfilter) && $statusfilter ne '') {
1661: if ($statusfilter eq 'all') {
1662: $statusregexp = '[^:]+';
1663: } else {
1664: $statusregexp = $statusfilter;
1665: $skiptest = 0;
1666: }
1667: }
1668: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1669: }
1670:
1671:
1672: sub get_post_contents {
1673: my ($contrib,$idx,$seeid,$seehidden,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1674: my $discussion = '';
1675: my $start=$numver;
1676: my $end=$numver + 1;
1677: %{$$imsfiles{$idx}}=();
1678: if ($type eq 'allversions') {
1679: unless($seehidden) {
1680: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1681: return $discussion;
1682: }
1683: }
1684: # $$screenname=&Apache::loncommon::screenname(
1685: # $$contrib{$idx.':sendername'},
1686: # $$contrib{$idx.':senderdomain'});
1687: $$plainname=&Apache::loncommon::nickname(
1688: $$contrib{$idx.':sendername'},
1689: $$contrib{$idx.':senderdomain'});
1690: $$screenname=$$contrib{$idx.':screenname'};
1691: $$showaboutme = &Apache::loncommon::aboutme_on($$contrib{$idx.':sendername'},
1692: $$contrib{$idx.':senderdomain'});
1693: my $sender = $$plainname;
1694: if ($$showaboutme) {
1695: $sender = &Apache::loncommon::aboutmewrapper(
1696: $$plainname,
1697: $$contrib{$idx.':sendername'},
1698: $$contrib{$idx.':senderdomain'});
1699: }
1700: if ($seeid) {
1701: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1702: $$contrib{$idx.':senderdomain'}.')';
1703: }
1704: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1705: my @postversions = ();
1706: if ($type eq 'allversions' || $type eq 'export') {
1707: $start = 0;
1708: if ($$contrib{$idx.':history'}) {
1709: @postversions = split(/:/,$$contrib{$idx.':history'});
1710: }
1711: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1712: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1713: push(@postversions,$$contrib{$idx.':timestamp'});
1714: $end = @postversions;
1715: } else {
1716: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1717: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1718: }
1719:
1720: if ($$contrib{$idx.':anonymous'}) {
1721: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1722: }
1723: if ($type eq 'allversions') {
1724: $discussion=('<b>'.$sender.'</b><br /><ul>');
1725: }
1726: for (my $i=$start; $i<$end; $i++) {
1727: my ($timesent,$attachmsg);
1728: my %currattach = ();
1729: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1730: unless (&contains_block_html($messages->{$i})) {
1731: &newline_to_br(\$messages->{$i});
1732: }
1733: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1734: $$subjects{$i}=~s/\n/\<br \/\>/g;
1735: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1736: if ($attachmenturls) {
1737: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1738: }
1739: if ($type eq 'export') {
1740: $$imsfiles{$idx}{$i} = '';
1741: if ($attachmsg) {
1742: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1743: foreach my $key (sort(keys(%currattach))) {
1744: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1745: my $fname = $1.$3.'/'.$4;
1746: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1747: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1748: }
1749: }
1750: }
1751: } else {
1752: if ($attachmsg) {
1753: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1754: } else {
1755: $$attachtxt{$i} = '';
1756: }
1757: }
1758: if ($type eq 'allversions') {
1759: $discussion.= <<"END";
1760: <li><b>$$subjects{$i}</b>, $timesent<br />
1761: $$messages{$i}<br />
1762: $$attachtxt{$i}</li>
1763: END
1764: }
1765: }
1766: if ($type eq 'allversions') {
1767: $discussion.='</ul>';
1768: return $discussion;
1769: } else {
1770: return;
1771: }
1772: }
1773:
1774: sub replicate_attachments {
1775: my ($attachrefs,$tempexport) = @_;
1776: my $response;
1777: foreach my $id (keys(%{$attachrefs})) {
1778: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1779: my $path = $tempexport;
1780: my $tail = $1.'/'.$2.$4;
1781: my @extras = split(/\//,$tail);
1782: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1783: if (!-e $destination) {
1784: my $i= 0;
1785: while ($i<@extras) {
1786: $path .= '/'.$extras[$i];
1787: if (!-e $path) {
1788: mkdir($path,0700);
1789: }
1790: $i ++;
1791: }
1792: my ($content,$rtncode);
1793: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1794: if ($uploadreply eq 'ok') {
1795: my $attachcopy;
1796: if ($attachcopy = Apache::File->new('>'.$destination)) {
1797: print $attachcopy $content;
1798: close($attachcopy);
1799: } else {
1800: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1801: }
1802: } else {
1803: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1804: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1805: }
1806: }
1807: }
1808: }
1809: return $response;
1810: }
1811:
1812: sub mail_screen {
1813: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1814: if (exists($env{'form.origpage'})) {
1815: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1816: }
1817:
1818: my %lt = &Apache::lonlocal::texthash(
1819: 'myqu' => 'Question/comment/feedback:',
1820: 'reta' => 'Retained attachments',
1821: 'atta' => 'Attachment',
1822: );
1823: if ($env{'form.editdisc'} || $env{'form.replydisc'}){
1824: $lt{'myqu'} = &mt('Post Discussion');
1825: }
1826: my $restitle = &get_resource_title($caller_symb,$feedurl);
1827: my $quote='';
1828: my $subject = '';
1829: my $comment = '';
1830: my $prevtag = '';
1831: my $parentmsg = '';
1832: my ($symb,$idx,$attachmenturls);
1833: my $numoldver = 0;
1834: my $attachmsg = '';
1835: my $newattachmsg = '';
1836: my @currnewattach = ();
1837: my @currdelold = ();
1838: my @keepold = ();
1839: my %attachments = ();
1840: my %currattach = ();
1841: my $attachnum = 0;
1842: my $anonchk = (<<END);
1843: function anonchk() {
1844: for (var i=0; i < document.mailform.discuss.length; i++) {
1845: if (document.mailform.discuss[i].checked) {
1846: document.attachment.discuss.value =
1847: document.mailform.discuss[i].value;
1848: }
1849: }
1850: if (document.mailform.blog.checked) {
1851: document.attachment.blog.value = 1;
1852: }
1853: return
1854: }
1855: END
1856: my $anonscript;
1857: if (exists($env{'form.origpage'})) {
1858: $anonscript = (<<END);
1859: function setposttype() {
1860: var disc = "$env{'form.discuss'}";
1861: for (var i=0; i < document.mailform.discuss.length; i++) {
1862: if (disc == document.mailform.discuss[i].value) {
1863: document.mailform.discuss[i].checked = 1;
1864: }
1865: }
1866: var blog = "$env{'form.blog'}";
1867: if (blog == 1) {
1868: document.mailform.blog.checked=1;
1869: }
1870: return
1871: }
1872: END
1873: } else {
1874: $anonscript = (<<END);
1875: function setposttype() {
1876: return
1877: }
1878: END
1879: }
1880: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1881: if ($env{'form.replydisc'}) {
1882: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1883: } else {
1884: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1885: }
1886: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1887: $env{'course.'.$env{'request.course.id'}.'.domain'},
1888: $env{'course.'.$env{'request.course.id'}.'.num'});
1889: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1890: my $numoldver = 0;
1891: if ($contrib{$idx.':history'}) {
1892: if ($contrib{$idx.':history'} =~ /:/) {
1893: my @oldversions = split(/:/,$contrib{$idx.':history'});
1894: $numoldver = @oldversions;
1895: } else {
1896: $numoldver = 1;
1897: }
1898: }
1899: if ($idx > 0) {
1900: my (%msgversions,%subversions,$htmldecode);
1901: $htmldecode = 0;
1902: if ($env{'form.replydisc'}) {
1903: $htmldecode = 1;
1904: }
1905: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1906: &get_post_versions(\%subversions,$contrib{$idx.':subject'},$htmldecode,
1907: $numoldver);
1908: $subject = $subversions{$numoldver};
1909: if ($env{'form.replydisc'}) {
1910: $quote = $msgversions{$numoldver};
1911: $subject = &HTML::Entities::encode(&mt('Re: ').$subject,'<>&"');
1912: } else {
1913: $comment = $msgversions{$numoldver};
1914: }
1915: }
1916: if ($env{'form.editdisc'}) {
1917: $attachmenturls = $contrib{$idx.':attachmenturl'};
1918: if (defined($contrib{$idx.':replyto'})) {
1919: $parentmsg = $contrib{$idx.':replyto'};
1920: }
1921: unless (exists($env{'form.origpage'})) {
1922: my $anonflag = 'nonanon';
1923: if ($contrib{$idx.':anonymous'}) {
1924: $anonflag = 'anon';
1925: }
1926: $anonscript = (<<END);
1927: function setposttype () {
1928: var currtype = "$anonflag";
1929: for (var i=0; i<document.mailform.discuss.length; i++) {
1930: if (document.mailform.elements.discuss[i].value == currtype ) {
1931: document.mailform.elements.discuss[i].checked=1;
1932: }
1933: }
1934: return
1935: }
1936: END
1937: }
1938: }
1939: }
1940: if ($env{'form.previous'}) {
1941: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1942: }
1943: }
1944:
1945: if ($env{'form.origpage'}) {
1946: $subject = &unescape($env{'form.subject'});
1947: $comment = &unescape($env{'form.comment'});
1948: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1949: }
1950: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
1951: my $send=&mt('Send');
1952: my $alert = &mt('Please select a feedback type.');
1953: &js_escape(\$alert);
1954: my $js= <<END;
1955: <script type="text/javascript">
1956: //<!--
1957: function gosubmit() {
1958: var rec=0;
1959: if (typeof(document.mailform.elements.discuss)!="undefined") {
1960: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1961: if (document.mailform.elements.discuss.checked ) {
1962: rec=1;
1963: }
1964: } else {
1965: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1966: if (document.mailform.elements.discuss[i].checked ) {
1967: rec=1;
1968: }
1969: }
1970: }
1971: }
1972: if (typeof(document.mailform.elements.blog)!="undefined") {
1973: if (document.mailform.elements.blog.checked) {
1974: rec=1;
1975: }
1976: }
1977:
1978: if (rec) {
1979: if (typeof(document.mailform.onsubmit)=='function') {
1980: document.mailform.onsubmit();
1981: }
1982: document.mailform.submit();
1983: } else {
1984: alert('$alert');
1985: }
1986: }
1987: $anonchk
1988: $anonscript
1989: //-->
1990: </script>
1991: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
1992: END
1993:
1994: my ($textareaheader,$textareaclass);
1995: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1996: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
1997: $textareaclass = 'class="LC_richDefaultOff"';
1998: if ($env{'request.course.id'}) {
1999: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
2000: undef($textareaclass);
2001: }
2002: }
2003: }
2004:
2005: # Breadcrumbs
2006: my $brcrum = [{'href' => '',
2007: 'text' => 'Resource Feedback and Discussion'}];
2008:
2009: my %onload = ('onload' => 'window.focus();setposttype();');
2010: my %parms=('add_entries' => \%onload);
2011: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
2012: my $start_page=
2013: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
2014:
2015: if ($quote ne '') {
2016: $quote = &HTML::Entities::decode($quote);
2017: unless (&contains_block_html($quote)) {
2018: &newline_to_br(\$quote);
2019: }
2020: $quote=&Apache::lonhtmlcommon::start_pick_box().
2021: &Apache::lonhtmlcommon::row_title(&mt('Quote')).
2022: &Apache::lontexconvert::msgtexconverted($quote).
2023: &Apache::lonhtmlcommon::row_closure(1).
2024: &Apache::lonhtmlcommon::end_pick_box();
2025: }
2026: my $header='';
2027: unless ($env{'form.modal'}) {
2028: $header="<h2><tt>$restitle</tt></h2>";
2029: }
2030: $r->print(<<END);
2031: $start_page
2032: <h1>$lt{'myqu'}</h1>
2033: $header
2034: <form action="/adm/feedback" method="post" name="mailform"
2035: enctype="multipart/form-data">
2036: $prevtag
2037: <input type="hidden" name="postdata" value="$feedurl" />
2038: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2039: END
2040: if ($env{'form.replydisc'}) {
2041: $r->print(<<END);
2042: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
2043: END
2044: } elsif ($env{'form.editdisc'}) {
2045: $r->print(<<END);
2046: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
2047: <input type="hidden" name="parentmsg" value="$parentmsg" />
2048: END
2049: }
2050: $r->print(<<END);
2051: $options
2052: <br />
2053: END
2054: $r->print(&Apache::lonhtmlcommon::start_pick_box());
2055: $r->print(<<END);
2056: $quote
2057: <p>
2058: $textareaheader
2059: </p>
2060: <p>
2061: $latexHelp
2062: </p>
2063: <p>
2064: END
2065:
2066:
2067: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
2068: $r->print('<input type="text" name="subject" size="30" value="'.
2069: $subject.'" /></p>');
2070: $r->print(&Apache::lonhtmlcommon::row_closure());
2071: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
2072: $r->print('<textarea name="comment" id="comment" cols="55" rows="10" '.
2073: $textareaclass.'>'.$comment.
2074: '</textarea>');
2075: $r->print(&Apache::lonhtmlcommon::row_closure(1));
2076: $r->print(&Apache::lonhtmlcommon::end_pick_box());
2077:
2078: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
2079: if ($env{'form.origpage'}) {
2080: foreach my $attach (@currnewattach) {
2081: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
2082: }
2083: foreach my $oldatt (@currdelold) {
2084: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
2085: }
2086: }
2087: if ($env{'form.editdisc'}) {
2088: if ($attachmenturls) {
2089: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
2090: $attachnum = scalar(keys(%currattach));
2091: foreach my $key (keys(%currattach)) {
2092: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
2093: }
2094: }
2095: }
2096: } else {
2097: $r->print(<<END);
2098: <p>
2099: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" class="LC_flUpload" />
2100: <input type="hidden" id="LC_free_space" value="131072" />
2101: </p>
2102: END
2103: }
2104: if (exists($env{'form.group'})) {
2105: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2106: }
2107: if (exists($env{'form.ref'})) {
2108: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2109: }
2110: $r->print(<<END);
2111: <input type="hidden" name="sendit" value="1" />
2112: <input type="button" value="$send" onclick='gosubmit();' />
2113: </form>
2114: END
2115: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
2116: my $now = time;
2117: my $ressymb = $symb;
2118: &Apache::lonenc::check_encrypt(\$ressymb);
2119: my $postidx = '';
2120: if ($env{'form.editdisc'}) {
2121: $postidx = $idx;
2122: }
2123: if (@currnewattach > 0) {
2124: $attachnum += @currnewattach;
2125: }
2126: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2127: if ($attachnum > 0) {
2128: if (@currnewattach > 0) {
2129: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2130: if (@currnewattach > 1) {
2131: $newattachmsg .= '<ol>';
2132: foreach my $item (@currnewattach) {
2133: $item =~ m#.*/([^/]+)$#;
2134: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2135: }
2136: $newattachmsg .= '</ol>'."\n";
2137: } else {
2138: $currnewattach[0] =~ m#.*/([^/]+)$#;
2139: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2140: }
2141: }
2142: if ($attachmsg) {
2143: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2144: }
2145: if ($newattachmsg) {
2146: $r->print("$newattachmsg");
2147: }
2148: }
2149: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2150: }
2151: $r->print(&generate_preview_button().
2152: &Apache::loncommon::end_page());
2153:
2154: }
2155:
2156: sub print_display_options {
2157: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2158: &Apache::loncommon::content_type($r,'text/html');
2159: $r->send_http_header;
2160:
2161: my $function = &Apache::loncommon::get_users_function();
2162: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2163: $env{'user.domain'});
2164:
2165: my %lt = &Apache::lonlocal::texthash(
2166: 'pref' => 'Display Preference',
2167: 'curr' => 'Current setting ',
2168: 'actn' => 'Action',
2169: 'deff' => 'Default for all discussions',
2170: 'prca' => 'Preferences can be set for this discussion that determine ....',
2171: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2172: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2173: 'wipa' => 'Whether individual posts can be marked as read/unread',
2174: 'allposts' => 'All posts',
2175: 'unread' => 'New posts only',
2176: 'unmark' => 'Posts not marked read',
2177: 'ondisp' => 'Once displayed',
2178: 'onmark' => 'Once marked not NEW',
2179: 'toggon' => 'Shown',
2180: 'toggoff' => 'Not shown',
2181: 'disa' => 'Posts displayed?',
2182: 'npmr' => 'New posts cease to be identified as "NEW"?',
2183: 'dotm' => 'Option to mark each post as read/unread?',
2184: 'chgt' => 'Change to ',
2185: 'mkdf' => 'Set to ',
2186: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2187: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2188: );
2189: my %js_lt = &Apache::lonlocal::texthash(
2190: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2191: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2192: );
2193: &js_escape(\%js_lt);
2194:
2195: my $dispchangeA = $lt{'unread'};
2196: my $dispchangeB = $lt{'unmark'};
2197: my $markchange = $lt{'ondisp'};
2198: my $toggchange = $lt{'toggon'};
2199: my $currdisp = $lt{'allposts'};
2200: my $currmark = $lt{'onmark'};
2201: my $discdisp = 'allposts';
2202: my $discmark = 'onmark';
2203: my $currtogg = $lt{'toggoff'};
2204: my $disctogg = 'toggoff';
2205:
2206: if ($dispchgA eq 'allposts') {
2207: $dispchangeA = $lt{'allposts'};
2208: $currdisp = $lt{'unread'};
2209: $discdisp = 'unread';
2210: }
2211:
2212: if ($markchg eq 'markonread') {
2213: $markchange = $lt{'onmark'};
2214: $currmark = $lt{'ondisp'};
2215: $discmark = 'ondisp';
2216: }
2217:
2218: if ($dispchgB eq 'onlyunread') {
2219: $dispchangeB = $lt{'unread'};
2220: $currdisp = $lt{'unmark'};
2221: $discdisp = 'unmark';
2222: }
2223: if ($toggchg eq 'toggoff') {
2224: $toggchange = $lt{'toggoff'};
2225: $currtogg = $lt{'toggon'};
2226: $disctogg = 'toggon';
2227: }
2228:
2229: my $js = <<END;
2230: <script type="text/javascript">
2231: function discdispChk(caller) {
2232: var disctogg = '$toggchg'
2233: if (caller == 0) {
2234: if (document.modifydisp.discdisp[0].checked == true) {
2235: if (document.modifydisp.discdisp[1].checked == true) {
2236: document.modifydisp.discdisp[1].checked = false
2237: }
2238: }
2239: }
2240: if (caller == 1) {
2241: if (document.modifydisp.discdisp[1].checked == true) {
2242: if (document.modifydisp.discdisp[0].checked == true) {
2243: document.modifydisp.discdisp[0].checked = false
2244: }
2245: if (disctogg == 'toggon') {
2246: document.modifydisp.disctogg.checked = true
2247: }
2248: if (disctogg == 'toggoff') {
2249: document.modifydisp.disctogg.checked = false
2250: }
2251: }
2252: }
2253: if (caller == 2) {
2254: var dispchgB = '$dispchgB'
2255: if (disctogg == 'toggoff') {
2256: if (document.modifydisp.disctogg.checked == true) {
2257: if (dispchgB == 'onlyunmark') {
2258: document.modifydisp.discdisp[1].checked = false
2259: }
2260: }
2261: }
2262: }
2263: }
2264:
2265: function setDisp() {
2266: var prev = "$previous"
2267: var chktotal = 0
2268: if (document.modifydisp.discdisp[0].checked == true) {
2269: document.modifydisp.$dispchgA.value = "$symb"
2270: chktotal ++
2271: }
2272: if (document.modifydisp.discdisp[1].checked == true) {
2273: document.modifydisp.$dispchgB.value = "$symb"
2274: chktotal ++
2275: }
2276: if (document.modifydisp.discmark.checked == true) {
2277: document.modifydisp.$markchg.value = "$symb"
2278: chktotal ++
2279: }
2280: if (document.modifydisp.disctogg.checked == true) {
2281: document.modifydisp.$toggchg.value = "$symb"
2282: chktotal ++
2283: }
2284: if (chktotal > 0) {
2285: document.modifydisp.submit()
2286: } else {
2287: if(confirm("$js_lt{'yhni'}. \\n$js_lt{'ywbr'}")) {
2288: if (prev > 0) {
2289: location.href = "$feedurl?previous=$previous"
2290: } else {
2291: location.href = "$feedurl"
2292: }
2293: }
2294: }
2295: }
2296: </script>
2297: END
2298:
2299:
2300: my $start_page =
2301: &Apache::loncommon::start_page('Discussion display options',$js);
2302: my $end_page =
2303: &Apache::loncommon::end_page();
2304: $r->print(<<END);
2305: $start_page
2306: <form name="modifydisp" method="post" action="/adm/feedback">
2307: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2308: <br />
2309: END
2310: $r->print(&Apache::loncommon::start_data_table());
2311: $r->print(<<END);
2312: <tr>
2313: <th>$lt{'pref'}</td>
2314: <th>$lt{'curr'}</td>
2315: <th>$lt{'actn'}?</td>
2316: </tr>
2317: END
2318: $r->print(&Apache::loncommon::start_data_table_row());
2319: $r->print(<<END);
2320: <td>$lt{'disa'}</td>
2321: <td>$lt{$discdisp}</td>
2322: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2323: <br />
2324: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2325: </td>
2326: END
2327: $r->print(&Apache::loncommon::end_data_table_row());
2328: $r->print(&Apache::loncommon::start_data_table_row());
2329: $r->print(<<END);
2330: <td>$lt{'npmr'}</td>
2331: <td>$lt{$discmark}</td>
2332: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2333: END
2334: $r->print(&Apache::loncommon::end_data_table_row());
2335: $r->print(&Apache::loncommon::start_data_table_row());
2336: $r->print(<<END);
2337: <td>$lt{'dotm'}</td>
2338: <td>$lt{$disctogg}</td>
2339: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2340: END
2341: my $save = &mt('Save');
2342: $r->print(&Apache::loncommon::end_data_table_row());
2343: $r->print(&Apache::loncommon::end_data_table());
2344: $r->print(<<END);
2345: <br />
2346: <br />
2347: <input type="hidden" name="symb" value="$symb" />
2348: <input type="hidden" name="previous" value="$previous" />
2349: <input type="hidden" name="$dispchgA" value="" />
2350: <input type="hidden" name="$dispchgB" value="" />
2351: <input type="hidden" name="$markchg" value="" />
2352: <input type="hidden" name="$toggchg" value="" />
2353: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2354: END
2355: if (exists($env{'form.group'})) {
2356: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2357: }
2358: if (exists($env{'form.ref'})) {
2359: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2360: }
2361: $r->print("
2362: <br />
2363: <br />
2364: </form>
2365: $end_page
2366: ");
2367: return;
2368: }
2369:
2370: sub print_sortfilter_options {
2371: my ($r,$symb,$previous,$feedurl) = @_;
2372:
2373: &Apache::loncommon::content_type($r,'text/html');
2374: $r->send_http_header;
2375:
2376: &Apache::lonenc::check_encrypt(\$symb);
2377: my @sections;
2378: my $section_sel = '';
2379: my $numvisible = 5;
2380: my @groups;
2381: my $group_sel = '';
2382: my $numgroupvis = 5;
2383: my %sectioncount = &Apache::loncommon::get_sections();
2384: my @courseroles = qw(st ad ep ta in);
2385: my $crstype = &Apache::loncommon::course_type();
2386: my $ccrole = 'cc';
2387: if ($crstype eq 'Community') {
2388: $ccrole = 'co';
2389: }
2390: push(@courseroles,$ccrole);
2391:
2392: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2393: @sections = ('all',$env{'request.course.sec'});
2394: $numvisible = 2;
2395: } else {
2396: @sections = sort {$a cmp $b} keys(%sectioncount);
2397: if (scalar(@sections) < 4) {
2398: $numvisible = scalar(@sections) + 1;
2399: }
2400: unshift(@sections,'all'); # Put 'all' at the front of the list
2401:
2402: }
2403: foreach my $sec (@sections) {
2404: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2405: }
2406:
2407: if (&check_group_priv() eq 'ok') {
2408: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2409: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2410: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2411: @groups = sort {$a cmp $b} keys(%curr_groups);
2412: if (scalar(@groups) < 4) {
2413: $numgroupvis = scalar(@groups) + 1;
2414: }
2415: unshift(@groups,'all'); # Put 'all' at the front of the list
2416: } else {
2417: my @coursegroups = split(/:/,$env{'request.course.groups'});
2418: if (@coursegroups > 0) {
2419: @coursegroups = sort {$a cmp $b} @coursegroups;
2420: @groups = ('all',@coursegroups);
2421: if (scalar(@groups) < 4) {
2422: $numgroupvis = scalar(@groups) + 1;
2423: }
2424: } else {
2425: @groups = ('all');
2426: $numgroupvis = 1;
2427: }
2428: }
2429: foreach my $group (@groups) {
2430: $group_sel .= " <option value=\"$group\">$group</option>\n";
2431: }
2432:
2433: my $function = &Apache::loncommon::get_users_function();
2434: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2435: $env{'user.domain'});
2436: my %lt = &Apache::lonlocal::texthash(
2437: 'diop' => 'Display Options',
2438: 'curr' => 'Current setting ',
2439: 'actn' => 'Action',
2440: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2441: 'soor' => 'Sort order',
2442: 'spur' => 'Specific user roles',
2443: 'sprs' => 'Specific role status',
2444: 'spse' => 'Specific sections',
2445: 'spgr' => 'Specific groups',
2446: 'psub' => 'Pick specific users (by name)',
2447: 'shal' => 'Show a list of current posters',
2448: 'stor' => 'Save changes',
2449: );
2450:
2451: my %sort_types = ();
2452: my %role_types = ();
2453: my %status_types = ();
2454: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2455:
2456: my $js = <<END;
2457: <script type="text/javascript">
2458: function verifyFilter() {
2459: var rolenum = 0
2460: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2461: if (document.modifyshown.rolefilter.options[i].selected == true) {
2462: rolenum ++
2463: }
2464: }
2465: if (rolenum == 0) {
2466: document.modifyshown.rolefilter.options[0].selected = true
2467: }
2468:
2469: var secnum = 0
2470: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2471: if (document.modifyshown.sectionpick.options[i].selected == true) {
2472: secnum ++
2473: }
2474: }
2475: if (secnum == 0) {
2476: document.modifyshown.sectionpick.options[0].selected = true
2477: }
2478:
2479: var grpnum = 0
2480: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2481: if (document.modifyshown.grouppick.options[i].selected == true) {
2482: grpnum ++
2483: }
2484: }
2485: if (grpnum == 0) {
2486: document.modifyshown.grouppick.options[0].selected = true
2487: }
2488:
2489: document.modifyshown.submit();
2490: }
2491: </script>
2492: END
2493:
2494: my $start_page=
2495: &Apache::loncommon::start_page('Discussion options',$js);
2496: my $end_page=
2497: &Apache::loncommon::end_page();
2498:
2499: $r->print(<<END);
2500: $start_page
2501: <form name="modifyshown" method="post" action="/adm/feedback">
2502: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2503: <br />
2504: <table border="0">
2505: <tr>
2506: <th>$lt{'soor'}</th>
2507: <th> </th>
2508: <th>$lt{'sprs'}</th>
2509: <th> </th>
2510: <th>$lt{'spur'}</th>
2511: <th> </th>
2512: <th>$lt{'spse'}</th>
2513: <th> </th>
2514: <th>$lt{'spgr'}</th>
2515: <th> </th>
2516: <th>$lt{'psub'}</th>
2517: </tr>
2518: <tr>
2519: <td align="center" valign="top">
2520: <select name="sortposts">
2521: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2522: <option value="descdate">$sort_types{'descdate'}</option>
2523: <option value="thread">$sort_types{'thread'}</option>
2524: <option value="subject">$sort_types{'subject'}</option>
2525: <option value="username">$sort_types{'username'}</option>
2526: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2527: </select>
2528: </td>
2529: <td> </td>
2530: <td align="center" valign="top">
2531: <select name="statusfilter">
2532: <option value="all" selected="selected">$status_types{'all'}</option>
2533: <option value="Active">$status_types{'Active'}</option>
2534: <option value="Expired">$status_types{'Expired'}</option>
2535: <option value="Future">$status_types{'Future'}</option>
2536: </select>
2537: </td>
2538: <td> </td>
2539: <td align="center" valign="top">
2540: <select name="rolefilter" multiple="multiple" size="5">
2541: <option value="all">$role_types{'all'}</option>
2542: <option value="st">$role_types{'st'}</option>
2543: <option value="$ccrole">$role_types{$ccrole}</option>
2544: <option value="in">$role_types{'in'}</option>
2545: <option value="ta">$role_types{'ta'}</option>
2546: <option value="ep">$role_types{'ep'}</option>
2547: <option value="ad">$role_types{'ad'}</option>
2548: <option value="cr">$role_types{'cr'}</option>
2549: </select>
2550: </td>
2551: <td> </td>
2552: <td align="center" valign="top">
2553: <select name="sectionpick" multiple="multiple" size="$numvisible">
2554: $section_sel
2555: </select>
2556: </td>
2557: <td> </td>
2558: <td align="center" valign="top">
2559: <select name="grouppick" multiple="multiple" size="$numvisible">
2560: $group_sel
2561: </select>
2562: </td>
2563: <td> </td>
2564: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2565: </tr>
2566: </table>
2567: <br />
2568: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2569: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2570: <input type="hidden" name="previous" value="$previous" />
2571: <input type="hidden" name="applysort" value="$symb" />
2572: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2573: END
2574: if (exists($env{'form.group'})) {
2575: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2576: }
2577: if (exists($env{'form.ref'})) {
2578: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2579: }
2580: $r->print("
2581: <br />
2582: <br />
2583: </form>
2584: $end_page
2585: ");
2586: }
2587:
2588: sub print_showposters {
2589: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2590:
2591: &Apache::loncommon::content_type($r,'text/html');
2592: $r->send_http_header;
2593:
2594: &Apache::lonenc::check_encrypt(\$symb);
2595: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2596: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2597: my $group = $env{'form.group'};
2598: my $ressymb = &wrap_symb($symb);
2599: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
2600: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2601: $cdom,$cnum);
2602: my %namesort = ();
2603: my %postcounts = ();
2604:
2605: my %lt = &Apache::lonlocal::texthash(
2606: sele => 'Select',
2607: full => 'Fullname',
2608: usdo => 'Username:domain',
2609: post => 'Posts',
2610: );
2611: if ($contrib{'version'}) {
2612: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2613: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2614: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2615: unless ((($hidden) && (!$seehidden)) || ($deleted)) {
2616: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2617: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2618: my $lastname = $names{'lastname'};
2619: my $firstname = $names{'firstname'};
2620: if ($lastname eq '') {
2621: $lastname = '_';
2622: }
2623: if ($firstname eq '') {
2624: $firstname = '_';
2625: }
2626: unless (defined($namesort{$lastname})) {
2627: %{$namesort{$lastname}} = ();
2628: }
2629: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2630: $postcounts{$poster} ++;
2631: if (defined($namesort{$lastname}{$firstname})) {
2632: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2633: push(@{$namesort{$lastname}{$firstname}}, $poster);
2634: }
2635: } else {
2636: @{$namesort{$lastname}{$firstname}} = ("$poster");
2637: }
2638: }
2639: }
2640: }
2641: }
2642:
2643: my $start_page = &Apache::loncommon::start_page('Discussion options');
2644: my $table_start =&Apache::loncommon::start_data_table();
2645: $r->print(<<END);
2646: $start_page
2647: <form name="pickpostersform" method="post" action="">
2648: <br />
2649: $table_start
2650: <tr>
2651: <th>#</th>
2652: <th>$lt{'sele'}</th>
2653: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2654: <th>$lt{'post'}</th>
2655: </tr>
2656: END
2657: my $count = 0;
2658: foreach my $last (sort(keys(%namesort))) {
2659: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2660: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2661: my ($uname,$udom) = split(/:/,$user);
2662: if (!$uname || !$udom) {
2663: next;
2664: } else {
2665: $count ++;
2666: $r->print(&Apache::loncommon::start_data_table_row().
2667: '<td align="right">'.$count.'</td>
2668: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2669: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2670: <td>'.$postcounts{$user}.'</td>'.
2671: &Apache::loncommon::end_data_table_row());
2672: }
2673: }
2674: }
2675: }
2676: $r->print(&Apache::loncommon::end_data_table());
2677: my $end_page = &Apache::loncommon::end_page();
2678: $r->print(<<END);
2679: <br />
2680: <input type="hidden" name="sortposts" value="$sortposts" />
2681: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2682: <input type="hidden" name="userpick" value="$symb" />
2683: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2684: </form>
2685: $end_page
2686: END
2687: }
2688:
2689: sub get_post_versions {
2690: my ($versions,$incoming,$htmldecode,$numver) = @_;
2691: if ($incoming =~ /^<version num="0">/) {
2692: my $p = HTML::LCParser->new(\$incoming);
2693: my $done = 0;
2694:
2695: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2696: my $num = $token->[1]{num};
2697: my $text = $p->get_text("/version");
2698: if (defined($numver)) {
2699: if ($num == $numver) {
2700: if ($htmldecode) {
2701: $text = &HTML::Entities::decode($text);
2702: }
2703: $$versions{$numver}=$text;
2704: $done = 1;
2705: }
2706: } else {
2707: if ($htmldecode) {
2708: $text = &HTML::Entities::decode($text);
2709: }
2710: $$versions{$num}=$text;
2711: }
2712: }
2713: } else {
2714: if (!defined($numver)) {
2715: $numver = 0;
2716: }
2717: if ($htmldecode) {
2718: $$versions{$numver} = $incoming;
2719: } else {
2720: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2721: }
2722: }
2723: return;
2724: }
2725:
2726: sub get_post_attachments {
2727: my ($attachments,$attachmenturls) = @_;
2728: my $num;
2729: if ($attachmenturls =~ m/^<attachment id="0">/) {
2730: my $p = HTML::LCParser->new(\$attachmenturls);
2731: while (my $token = $p->get_tag("attachment","filename","post")) {
2732: if ($token->[0] eq "attachment") {
2733: $num = $token->[1]{id};
2734: %{$$attachments{$num}} =();
2735: } elsif ($token->[0] eq "filename") {
2736: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2737: } elsif ($token->[0] eq "post") {
2738: my $id = $token->[1]{id};
2739: $$attachments{$num}{$id} = $p->get_text("/post");
2740: }
2741: }
2742: } else {
2743: %{$$attachments{'0'}} = ();
2744: $$attachments{'0'}{'filename'} = $attachmenturls;
2745: $$attachments{'0'}{'0'} = 'n';
2746: }
2747: return;
2748: }
2749:
2750: sub fail_redirect {
2751: my ($r,$feedurl,$delay) = @_;
2752: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2753: my %lt = &Apache::lonlocal::texthash(
2754: 'sorr' => 'Sorry, no recipients ...',
2755: );
2756: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2757: my %parms=('only_body' => 1);
2758: if ($delay !~ /^\d+(|\.\d+)$/) {
2759: $delay = 2;
2760: }
2761: if ($env{'form.modal'}) {
2762: my $onload = 'document.forms.reldt.submit()';
2763: if ($delay) {
2764: my $js_delay = int(1000 * $delay);
2765: $onload = "setTimeout(function(){
2766: document.forms.reldt.submit();
2767: },$js_delay);";
2768: }
2769: $parms{'add_entries'}={'onload' => $onload};
2770: } else {
2771: $parms{'redirect'}=[$delay,$feedurl];
2772: }
2773: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,\%parms));
2774: my $windowname = 'loncapaclient';
2775: $r->print(<<ENDFAILREDIR);
2776: <img align="right" src="$logo" />
2777: <p class="LC_warning">$lt{'sorr'}</p>
2778: <form name="reldt" action="$feedurl" target="$windowname">
2779: </form>
2780: ENDFAILREDIR
2781: $r->print(&Apache::loncommon::end_page());
2782: }
2783:
2784: sub redirect_back {
2785: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,
2786: $rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge,$delay) = @_;
2787: my $sorttag = '';
2788: my $roletag = '';
2789: my $statustag = '';
2790: my $sectag = '';
2791: my $grptag = '';
2792: my $userpicktag = '';
2793: my $qrystr = '';
2794: my $prevtag = '';
2795:
2796: &Apache::loncommon::content_type($r,'text/html');
2797: $r->send_http_header;
2798: &dewrapper(\$feedurl);
2799: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2800: if ($previous > 0) {
2801: $qrystr = 'previous='.$previous;
2802: if ($feedurl =~ /\?register=1/) {
2803: $feedurl .= '&'.$qrystr;
2804: } else {
2805: $feedurl .= '?'.$qrystr;
2806: }
2807: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2808: }
2809: if (defined($sort)) {
2810: my $sortqry = 'sortposts='.$sort;
2811: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2812: $feedurl .= '&'.$sortqry;
2813: } else {
2814: $feedurl .= '?'.$sortqry;
2815: }
2816: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2817: if (defined($numpicks)) {
2818: my $userpickqry = 'totposters='.$numpicks;
2819: $feedurl .= '&'.$userpickqry;
2820: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2821: } else {
2822: if (ref($sectionpick) eq 'ARRAY') {
2823: $feedurl .= '&sectionpick=';
2824: $sectag .= '<input type="hidden" name="sectionpick" value="';
2825: foreach my $sec (@{$sectionpick}) {
2826: $feedurl .= $sec.',';
2827: $sectag .= $sec.',';
2828: }
2829: $feedurl =~ s/,$//;
2830: $sectag =~ s/,$//;
2831: $sectag .= '" />';
2832: } else {
2833: $feedurl .= '&sectionpick='.$sectionpick;
2834: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2835: }
2836: if (ref($grouppick) eq 'ARRAY') {
2837: $feedurl .= '&grouppick=';
2838: $sectag .= '<input type="hidden" name="grouppick" value="';
2839: foreach my $grp (@{$grouppick}) {
2840: $feedurl .= $grp.',';
2841: $grptag .= $grp.',';
2842: }
2843: $feedurl =~ s/,$//;
2844: $grptag =~ s/,$//;
2845: $grptag .= '" />';
2846: } else {
2847: $feedurl .= '&grouppick='.$grouppick;
2848: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2849: }
2850: if (ref($rolefilter) eq 'ARRAY') {
2851: $feedurl .= '&rolefilter=';
2852: $roletag .= '<input type="hidden" name="rolefilter" value="';
2853: foreach my $role (@{$rolefilter}) {
2854: $feedurl .= $role.',';
2855: $roletag .= $role.',';
2856: }
2857: $feedurl =~ s/,$//;
2858: $roletag =~ s/,$//;
2859: $roletag .= '" />';
2860: } else {
2861: $feedurl .= '&rolefilter='.$rolefilter;
2862: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2863: }
2864: $feedurl .= '&statusfilter='.$statusfilter;
2865: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2866: }
2867: }
2868: my $grouptag;
2869: if ($group ne '') {
2870: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2871: my $refarg;
2872: if (exists($env{'form.ref'})) {
2873: $refarg = '&ref='.$env{'form.ref'};
2874: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2875: }
2876: if ($feedurl =~ /\?/) {
2877: $feedurl .= '&group='.$group.$refarg;
2878: } else {
2879: $feedurl .= '?group='.$group.$refarg;
2880: }
2881: }
2882: &Apache::lonenc::check_encrypt(\$feedurl);
2883: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2884: my %parms=('only_body' => 1);
2885: if ($delay !~ /^\d+(|\.\d+)$/) {
2886: $delay = 0;
2887: }
2888: if ($env{'form.modal'}) {
2889: my $onload = 'document.forms.reldt.submit()';
2890: if ($delay) {
2891: my $js_delay = int(1000 * $delay);
2892: $onload = "setTimeout(function(){
2893: document.forms.reldt.submit();
2894: },$js_delay);";
2895: }
2896: $parms{'add_entries'}={'onload' => $onload};
2897: } else {
2898: $parms{'redirect'}=[$delay,$feedurl];
2899: }
2900: my $start_page=
2901: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2902: my $end_page = &Apache::loncommon::end_page();
2903: $r->print(<<ENDREDIR);
2904: $start_page
2905: <img align="right" src="$logo" />
2906: $typestyle
2907: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2908: $blog
2909: $toolarge
2910: <font color="red">$status</font>
2911: <form name="reldt" action="$feedurl" target="loncapaclient">
2912: $prevtag
2913: $sorttag
2914: $statustag
2915: $roletag
2916: $sectag
2917: $grptag
2918: $userpicktag
2919: $grouptag
2920: </form>
2921: $end_page
2922: ENDREDIR
2923: }
2924:
2925: sub no_redirect_back {
2926: my ($r,$feedurl,$delay) = @_;
2927: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2928: my $form_for_modal;
2929: my %parms=('only_body' => 1,
2930: 'bgcolor' => '#FFFFFF',);
2931: if ($delay !~ /^\d+(|\.\d+)$/) {
2932: $delay = 0;
2933: }
2934: if ($env{'form.modal'}) {
2935: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2936: my $onload = 'document.forms.reldt.submit()';
2937: if ($delay) {
2938: my $js_delay = int(1000 * $delay);
2939: $onload = "setTimeout(function(){
2940: document.forms.reldt.submit();
2941: },$js_delay);";
2942: }
2943: $parms{'add_entries'}={'onload' => $onload};
2944: my $windowname = 'loncapaclient';
2945: $form_for_modal = <<ENDFORM;
2946: <form name="reldt" action="$feedurl" target="$windowname">
2947: </form>
2948: ENDFORM
2949: }
2950: } else {
2951: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2952: $parms{'redirect'}=[$delay,$feedurl];
2953: }
2954: }
2955: my $start_page=
2956: &Apache::loncommon::start_page('Feedback not sent',undef,
2957: \%parms);
2958:
2959: my $end_page = &Apache::loncommon::end_page();
2960:
2961: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2962: $r->print (<<ENDNOREDIRTWO);
2963: $start_page
2964: <img align="right" src="$logo" />
2965: <b>$nofeed</b>
2966: <br />
2967: $form_for_modal
2968: $end_page
2969: ENDNOREDIRTWO
2970: }
2971:
2972: sub screen_header {
2973: my ($feedurl,$symb,$group) = @_;
2974: my %default = &Apache::lonlocal::texthash (
2975: question => 'Question about resource content',
2976: comment => 'Question/Comment/Feedback about course content',
2977: policy => 'Question/Comment/Feedback about course policy',
2978: );
2979: my $contribdisc = &mt('Contribution to course discussion of resource');
2980: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2981: my $namevis = &mt('name only visible to course faculty');
2982: my $crstype;
2983: if ($env{'request.course.id'}) {
2984: $crstype = &Apache::loncommon::course_type();
2985: if ($crstype eq 'Community') {
2986: $default{'comment'} = &mt('Question/Comment/Feedback about community content');
2987: $default{'policy'} = &mt('Question/Comment/Feedback about community policy');
2988: $contribdisc = &mt('Contribution to community discussion of resource');
2989: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2990: $namevis = &mt('name only visible to community facilitators');
2991: }
2992: }
2993: my $msgoptions='';
2994: my $discussoptions='';
2995: my $checkradio = '';
2996: my $blockblog;
2997: my (%fdbkoptions,%discoptions);
2998: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2999: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
3000: $fdbkoptions{'author'} = 1;
3001: }
3002: if (&feedback_available(1)) {
3003: $fdbkoptions{'question'} = 1;
3004: }
3005: if (&feedback_available(0,1)) {
3006: $fdbkoptions{'course'} = 1;
3007: }
3008: if (&feedback_available(0,0,1)) {
3009: $fdbkoptions{'policy'} = 1;
3010: }
3011: }
3012: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
3013: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
3014: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3015: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3016: my $realsymb = &get_realsymb($symb);
3017: if (!$blocked && &discussion_open(undef,$realsymb) &&
3018: (&Apache::lonnet::allowed('pch',
3019: $env{'request.course.id'}.
3020: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3021: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
3022: $discoptions{'nonanon'} = 1;
3023: $discoptions{'anon'} = 1;
3024: $blockblog = &Apache::loncommon::blocking_status('blogs');
3025: }
3026: }
3027: my $total = scalar(keys(%fdbkoptions)) + scalar(keys(%discoptions));
3028: return if (!$total);
3029: if ($total == 1) {
3030: $checkradio = ' checked="checked"';
3031: }
3032: if (keys(%fdbkoptions)) {
3033: if ($fdbkoptions{'author'}) {
3034: $msgoptions =
3035: '<label><input type="radio" name="discuss" value="author"'.$checkradio.' /> '.
3036: &mt('Feedback to resource author').'</label><br />';
3037: }
3038: foreach my $item ('question','comment','policy') {
3039: my $type = $item;
3040: if ($item eq 'comment') {
3041: $type = 'course';
3042: }
3043: my $optionhash=$env{'course.'.$env{'request.course.id'}.'.'.$item.'.email.text'};
3044: if ($fdbkoptions{$type}) {
3045: $msgoptions .=
3046: '<label><input type="radio" name="discuss" value="'.$type.'"'.$checkradio.' />'.
3047: ($optionhash?$optionhash:$default{$item}).'</label><br />';
3048: }
3049: }
3050: }
3051: if (keys(%discoptions)) {
3052: if ($discoptions{'nonanon'}) {
3053: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
3054: $contribdisc.
3055: '</label>';
3056: }
3057: if ($discoptions{'anon'}) {
3058: $discussoptions .= '<br /><label><input type="radio" name="discuss" value="anon"'.$checkradio.' /> '.
3059: $anoncontrib.
3060: ' <i>('.$namevis.')</i></label> '.
3061: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
3062: }
3063: if (!$blockblog) {
3064: $discussoptions.= &add_blog_checkbox($crstype);
3065: }
3066: }
3067: if ($msgoptions) {
3068: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
3069: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
3070: '<td>'.$msgoptions.'</td></tr>';
3071: }
3072: if ($discussoptions) {
3073: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
3074: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
3075: '<td>'.$discussoptions.'</td></tr>';
3076: }
3077: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
3078: }
3079:
3080: sub resource_output {
3081: my ($feedurl) = @_;
3082: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
3083: $usersaw=~s/\<body[^\>]*\>//gi;
3084: $usersaw=~s/\<\/body\>//gi;
3085: $usersaw=~s/\<html\>//gi;
3086: $usersaw=~s/\<\/html\>//gi;
3087: $usersaw=~s/\<head\>//gi;
3088: $usersaw=~s/\<\/head\>//gi;
3089: $usersaw=~s/action\s*\=/would_be_action\=/gi;
3090: return $usersaw;
3091: }
3092:
3093: sub clear_out_html {
3094: my ($message,$override)=@_;
3095: # Always allow the <m>-tag
3096: my %html=(M=>1);
3097: # Check if more is allowed
3098: my $cid=$env{'request.course.id'};
3099: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
3100: ($override)) {
3101: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
3102: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
3103: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
3104: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
3105: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
3106: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
3107: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
3108: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
3109: }
3110: # Do the substitution of everything that is not explicitly allowed
3111: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
3112: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
3113: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
3114: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
3115: return $message;
3116: }
3117:
3118: sub assemble_email {
3119: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
3120: my %lt = &Apache::lonlocal::texthash(
3121: 'prev' => 'Previous attempts of student (if applicable)',
3122: 'orig' => 'Original screen output (if applicable)',
3123: 'corr' => 'Correct Answer(s) (if applicable)',
3124: );
3125: if (&Apache::loncommon::course_type() eq 'Community') {
3126: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
3127: }
3128: my $email=<<"ENDEMAIL";
3129: $message
3130: ENDEMAIL
3131: my $citations=<<"ENDCITE";
3132: <h2>$lt{'prev'}</h2>
3133: $prevattempts
3134: <br /><hr />
3135: <h2>$lt{'orig'}</h2>
3136: $usersaw
3137: <h2>$lt{'corr'}</h2>
3138: $useranswer
3139: ENDCITE
3140: return ($email,$citations);
3141: }
3142:
3143:
3144: sub feedback_available {
3145: my ($question,$course,$policy)=@_;
3146: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
3147: $course,$policy);
3148: return scalar(%to);
3149: }
3150:
3151: sub send_msg {
3152: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,$clientip,%to)=@_;
3153: my $status='';
3154: my $sendsomething=0;
3155: my $delay;
3156: my $senthide;
3157: my %setters;
3158: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
3159: &Apache::loncommon::blockcheck(\%setters,'com',$clientip);
3160: if ($by_ip) {
3161: $senthide = 1;
3162: }
3163: my $restitle = &get_resource_title($symb,$feedurl);
3164: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
3165: unless ($title=~/\w/) { $title=&mt('Feedback'); }
3166: foreach my $key (keys(%to)) {
3167: if ($key) {
3168: my ($user,$domain) = split(/\:/,$key,2);
3169: if (!defined($user)) {
3170: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
3171: } elsif (!defined($domain)) {
3172: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
3173: } else {
3174: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
3175: $title.' ['.$restitle.']',$email,$citations,$feedurl,
3176: $attachmenturl,undef,undef,$symb,$restitle,undef,
3177: undef,undef,undef,$senthide)=~/ok/) {
3178: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
3179: } else {
3180: $sendsomething++;
3181: }
3182: }
3183: }
3184: }
3185: if ($sendsomething && $senthide) {
3186: if ($by_ip) {
3187: my $showdom = &Apache::lonnet::domain($blockdom);
3188: if ($showdom eq '') {
3189: $showdom = $blockdom;
3190: }
3191: $delay = 4;
3192: $status.='<br />'.&mt("Message content of feedback you send to instructor(s) from your current IP address: [_1] will be unavailable in your 'Sent' folder.",$clientip).
3193: '<ul><li>'.
3194: &mt('This does not affect delivery of feedback to your instructor(s).').
3195: '</li><li>'.
3196: &mt('Note: some types of communication functionality are blocked for certain IP address(es).').
3197: '</li><li>'.
3198: &mt('This restriction was set by an administrator in the [_1] LON-CAPA domain.',
3199: $showdom).
3200: '</li></ul><br />';
3201: }
3202: }
3203:
3204: # Records of number of feedback messages are kept under the "symb" called "_feedback"
3205: # There are two entries within the framework of a course:
3206: # - the URLs for which feedback was provided
3207: # - the total number of contributions
3208: if ($sendsomething) {
3209: my %record=&getfeedbackrecords();
3210: my ($temp)=keys(%record);
3211: unless ($temp=~/^error\:/) {
3212: my %newrecord=();
3213: $newrecord{'resource'}=$feedurl;
3214: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3215: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3216: $status.='<br />'.&mt('Not registered').'<br />';
3217: }
3218: }
3219: }
3220: return ($status,$sendsomething,$delay);
3221: }
3222:
3223: # Routine to get the complete feedback records
3224:
3225: sub getfeedbackrecords {
3226: my ($uname,$udom,$course)=@_;
3227: unless ($uname) { $uname=$env{'user.name'}; }
3228: unless ($udom) { $udom=$env{'user.domain'}; }
3229: unless ($course) { $course=$env{'request.course.id'}; }
3230: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3231: return %record;
3232: }
3233:
3234: # Routine to get feedback statistics
3235:
3236: sub getfeedbackstats {
3237: my %record=&getfeedbackrecords(@_);
3238: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3239: }
3240:
3241: # Store feedback credit
3242:
3243: sub storefeedbackpoints {
3244: my ($points,$uname,$udom,$course)=@_;
3245: unless ($points) { $points=0; }
3246: unless ($uname) { $uname=$env{'user.name'}; }
3247: unless ($udom) { $udom=$env{'user.domain'}; }
3248: unless ($course) { $course=$env{'request.course.id'}; }
3249: my %record=('grader_user' => $env{'user.name'},
3250: 'grader_domain' => $env{'user.domain'},
3251: 'points' => $points);
3252: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3253: }
3254:
3255: # Store feedback "likes"
3256:
3257: sub storefeedbacklikes {
3258: my ($likes,$uname,$udom,$course)=@_;
3259: unless ($likes) { $likes=0; }
3260: if ($likes>0) { $likes=1; }
3261: if ($likes<0) { $likes=-1; }
3262: unless ($uname) { $uname=$env{'user.name'}; }
3263: unless ($udom) { $udom=$env{'user.domain'}; }
3264: unless ($course) { $course=$env{'request.course.id'}; }
3265: my %record=&getfeedbackrecords($uname,$udom,$course);
3266: my $totallikes=$record{'totallikes'};
3267: $totallikes+=$likes;
3268: my %newrecord=('likes_user' => $env{'user.name'},
3269: 'likes_domain' => $env{'user.domain'},
3270: 'likes' => $likes,
3271: 'totallikes' => $totallikes);
3272: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3273: }
3274:
3275:
3276: sub adddiscuss {
3277: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3278: my $status='';
3279: my $realsymb = &get_realsymb($symb);
3280: my ($cnum,$cdom);
3281: if ($env{'request.course.id'}) {
3282: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3283: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3284: }
3285: if (&discussion_open(undef,$realsymb) &&
3286: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3287: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3288: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3289: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3290:
3291: my %contrib=('message' => $email,
3292: 'sendername' => $env{'user.name'},
3293: 'senderdomain' => $env{'user.domain'},
3294: 'screenname' => $env{'environment.screenname'},
3295: 'plainname' => $env{'environment.firstname'}.' '.
3296: $env{'environment.middlename'}.' '.
3297: $env{'environment.lastname'}.' '.
3298: $env{'enrironment.generation'},
3299: 'attachmenturl'=> $attachmenturl,
3300: 'subject' => $subject);
3301: if ($env{'form.replydisc'}) {
3302: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3303: }
3304: if ($anon) {
3305: $contrib{'anonymous'}='true';
3306: }
3307: if (($symb) && ($email)) {
3308: my $now = time;
3309: if ($env{'form.editdisc'}) {
3310: $contrib{'ip'}=&Apache::lonnet::get_requestor_ip();
3311: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3312: $contrib{'timestamp'} = $now;
3313: $contrib{'history'} = '';
3314: my $numoldver = 0;
3315: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3316: &Apache::lonenc::check_decrypt(\$oldsymb);
3317: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3318: # get timestamp for last post and history
3319: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3320: $env{'course.'.$env{'request.course.id'}.'.domain'},
3321: $env{'course.'.$env{'request.course.id'}.'.num'});
3322: if (defined($oldcontrib{$oldidx.':replyto'})) {
3323: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3324: }
3325: if (defined($oldcontrib{$oldidx.':history'})) {
3326: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3327: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3328: $numoldver = @oldversions;
3329: } else {
3330: $numoldver = 1;
3331: }
3332: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3333: }
3334: my $numnewver = $numoldver + 1;
3335: if (defined($oldcontrib{$oldidx.':subject'})) {
3336: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3337: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3338: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3339: } else {
3340: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3341: }
3342: }
3343: if (defined($oldcontrib{$oldidx.':message'})) {
3344: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3345: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3346: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3347: } else {
3348: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3349: }
3350: }
3351: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3352: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3353: $oldsymb,$oldidx,\%contrib,
3354: $env{'course.'.$env{'request.course.id'}.'.domain'},
3355: $env{'course.'.$env{'request.course.id'}.'.num'});
3356: $status='Editing class discussion'.($anon?' (anonymous)':'');
3357: } else {
3358: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3359: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3360: $env{'course.'.$env{'request.course.id'}.'.domain'},
3361: $env{'course.'.$env{'request.course.id'}.'.num'});
3362: }
3363: my %storenewentry=($symb => $now);
3364: $status.='<br />'.&mt('Updating discussion time').': '.
3365: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3366: $env{'course.'.$env{'request.course.id'}.'.domain'},
3367: $env{'course.'.$env{'request.course.id'}.'.num'});
3368: }
3369: my %record=&getdiscussionrecords();
3370: my ($temp)=keys(%record);
3371: unless ($temp=~/^error\:/) {
3372: my %newrecord=();
3373: $newrecord{'resource'}=$symb;
3374: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3375: $status.='<br />'.&mt('Registering').': '.
3376: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3377: &updatekarma();
3378: }
3379: } else {
3380: $status.='Failed.';
3381: }
3382: return $status.'<br />';
3383: }
3384:
3385:
3386: # Routine to get the complete discussion records
3387:
3388: sub getdiscussionrecords {
3389: my ($uname,$udom,$course)=@_;
3390: unless ($uname) { $uname=$env{'user.name'}; }
3391: unless ($udom) { $udom=$env{'user.domain'}; }
3392: unless ($course) { $course=$env{'request.course.id'}; }
3393: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3394: return %record;
3395: }
3396:
3397: # Routine to get discussion statistics
3398:
3399: sub getdiscussionstats {
3400: my %record=&getdiscussionrecords(@_);
3401: my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
3402: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
3403: }
3404:
3405: # Calculate discussion karma
3406:
3407: sub calcdiscussionkarma {
3408: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3409: my $karma=0;
3410: if ($votes>0) {
3411: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3412: if ($karma<0) { $karma=0; }
3413: if ($karma>5) { $karma=5; }
3414: }
3415: return $karma;
3416: }
3417:
3418: # Update karma
3419:
3420: sub updatekarma {
3421: my ($uname,$udom,$course)=@_;
3422: unless ($uname) { $uname=$env{'user.name'}; }
3423: unless ($udom) { $udom=$env{'user.domain'}; }
3424: unless ($course) { $course=$env{'request.course.id'}; }
3425: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3426: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3427: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3428: return $karma;
3429: }
3430:
3431: # Retrieve karma
3432:
3433: sub userkarma {
3434: my ($uname,$udom,$course)=@_;
3435: unless ($uname) { $uname=$env{'user.name'}; }
3436: unless ($udom) { $udom=$env{'user.domain'}; }
3437: unless ($course) { $course=$env{'request.course.id'}; }
3438: my $hashkey=$uname.':'.$udom.':'.$course;
3439: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3440: if ($cached) {
3441: return $karma;
3442: }
3443: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3444: $karma=$userdisc{'karma'};
3445: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3446: return $karma;
3447: }
3448:
3449: # Store discussion credit
3450:
3451: sub storediscussionpoints {
3452: my ($points,$uname,$udom,$course)=@_;
3453: unless ($points) { $points=0; }
3454: unless ($uname) { $uname=$env{'user.name'}; }
3455: unless ($udom) { $udom=$env{'user.domain'}; }
3456: unless ($course) { $course=$env{'request.course.id'}; }
3457: my %record=('grader_user' => $env{'user.name'},
3458: 'grader_domain' => $env{'user.domain'},
3459: 'points' => $points);
3460: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3461: }
3462:
3463: # Store discussion "likes"
3464:
3465: sub storediscussionlikes {
3466: my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
3467: unless ($uname) { $uname=$env{'user.name'}; }
3468: unless ($udom) { $udom=$env{'user.domain'}; }
3469: unless ($course) { $course=$env{'request.course.id'}; }
3470: my %record=&getdiscussionrecords($uname,$udom,$course);
3471: my $totallikes=$record{'totallikes'};
3472: my $totalunlikes=$record{'totalunlikes'};
3473: $totallikes += $chglikes;
3474: $totalunlikes += $chgunlikes;
3475: my %newrecord=('likes_user' => $env{'user.name'},
3476: 'likes_domain' => $env{'user.domain'},
3477: 'totallikes' => $totallikes,
3478: 'totalunlikes' => $totalunlikes,
3479: 'context' => $context);
3480: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3481: if ($status eq 'ok') {
3482: &updatekarma($uname,$udom,$course);
3483: }
3484: return $status;
3485: }
3486:
3487: sub get_discussion_info {
3488: my ($idx,%contrib) = @_;
3489: my $changelast = 0;
3490: my $count = 0;
3491: my $hiddenflag = 0;
3492: my $deletedflag = 0;
3493: my ($hidden,$deleted,%info,$newlastdisc);
3494: my $version = $contrib{'version'};
3495: if ($version) {
3496: for (my $id=$version; $id>0; $id--) {
3497: my $vkeys=$contrib{$id.':keys'};
3498: my @keys=split(/:/,$vkeys);
3499: if (grep(/^hidden$/,@keys)) {
3500: if (!$hiddenflag) {
3501: $hidden = $contrib{$id.':hidden'};
3502: $hiddenflag = 1;
3503: }
3504: } elsif (grep(/^deleted$/,@keys)) {
3505: if (!$deletedflag) {
3506: $deleted = $contrib{$id.':deleted'};
3507: $deletedflag = 1;
3508: }
3509: } else {
3510: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3511: $count++;
3512: $info{$count}{'id'} = $id;
3513: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3514: }
3515: }
3516: }
3517: if ($info{'1'}{'id'} == $idx) {
3518: $changelast = 1;
3519: if ($count > 1) {
3520: $newlastdisc = $info{'2'}{'timestamp'};
3521: } else {
3522: $newlastdisc = 0;
3523: }
3524: }
3525: }
3526: return ($changelast,$newlastdisc);
3527: }
3528:
3529: # ----------------------------------------------------------- Preview function
3530:
3531: sub show_preview {
3532: my ($r) = @_;
3533: &Apache::loncommon::content_type($r,'text/html');
3534: $r->send_http_header;
3535: my $start_page=
3536: &Apache::loncommon::start_page('Preview',undef,
3537: {'only_body' => 1,});
3538:
3539: my $message=&clear_out_html($env{'form.comment'});
3540: &newline_to_br(\$message);
3541: $message=&Apache::lonspeller::markeduptext($message);
3542: $message=&Apache::lontexconvert::msgtexconverted($message);
3543: my $subject=&clear_out_html($env{'form.subject'});
3544: $subject=~s/\n/\<br \/\>/g;
3545: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3546:
3547: my $end_page = &Apache::loncommon::end_page();
3548:
3549: $r->print($start_page
3550: .'<h1>'.&mt('Preview').'</h1>'
3551: .&Apache::lonhtmlcommon::start_pick_box()
3552: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3553: .$subject
3554: .&Apache::lonhtmlcommon::row_closure()
3555: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3556: .$message
3557: .&Apache::lonhtmlcommon::row_closure(1)
3558: .&Apache::lonhtmlcommon::end_pick_box()
3559: .$end_page
3560: );
3561: }
3562:
3563: sub contains_block_html {
3564: my ($message)=@_;
3565: return ($message =~ m{
3566: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3567: \s*
3568: (\w+\=['"]\w+['"])*
3569: \s*
3570: (
3571: \s*/>|
3572: >.*</\1\s*>
3573: )}xs
3574: );
3575: }
3576:
3577: sub tidy_html {
3578: my ($message)=@_;
3579: # my $tidy = HTML::Tidy::libXML->new();
3580: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3581: # $xhtml =~ m/<body>(.*)<\/body>/is;
3582: # my $clean = $1;
3583: # # remove any empty block-level tags
3584: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3585: # $message=$clean;
3586: return $message;
3587: }
3588:
3589: sub newline_to_br {
3590: my ($message)=@_;
3591: my $newmessage;
3592: my $parser=HTML::LCParser->new($message);
3593: while (my $token=$parser->get_token()) {
3594: if ($token->[0] eq 'T') {
3595: my $text=$token->[1];
3596: $text=~s/\n/\<br \/\>/g;
3597: $newmessage.=$text;
3598: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3599: $newmessage.=$token->[1];
3600: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3601: $newmessage.=$token->[2];
3602: } elsif ($token->[0] eq 'S') {
3603: $newmessage.=$token->[4];
3604: }
3605:
3606: }
3607: $$message=$newmessage;
3608: }
3609:
3610: sub generate_preview_button {
3611: my ($formname,$fieldname)=@_;
3612: unless ($formname) { $formname='mailform'; }
3613: unless ($fieldname) { $fieldname='comment'; }
3614: my $pre=&mt("Show Preview and Check Spelling");
3615: return(<<ENDPREVIEW);
3616: <br />
3617: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3618: <input type="hidden" name="subject" />
3619: <input type="hidden" name="comment" />
3620: <input type="button" value="$pre"
3621: 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();" />
3622: </form>
3623: ENDPREVIEW
3624: }
3625:
3626: sub modify_attachments {
3627: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3628: $attachmaxtext,$toolarge)=@_;
3629:
3630: my %lt = &Apache::lonlocal::texthash(
3631: 'subj' => 'Subject',
3632: 'chth' => 'Check the checkboxes for any you wish to remove.',
3633: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3634: 'adda' => 'Add a new attachment to this post',
3635: 'stch' => 'Save Changes',
3636: 'clic' => 'Add/remove attachments',
3637: );
3638: my $js = <<END;
3639: <script type="text/javascript">
3640: function setAction () {
3641: document.modattachments.action = document.modattachments.origpage.value;
3642: document.modattachments.submit();
3643: }
3644: </script>
3645: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
3646: END
3647:
3648: # Breadcrumbs
3649: my $brcrum = [{'href' => '',
3650: 'text' => 'Discussion Post Attachments'}];
3651: my %parms=('only_body' => 1);
3652: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
3653:
3654: my $start_page =
3655: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3656:
3657: my $orig_subject = &unescape($env{'form.subject'});
3658: my $subject=&clear_out_html($orig_subject);
3659: $subject=~s/\n/\<br \/\>/g;
3660: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3661: my $timestamp=$env{'form.timestamp'};
3662: my $numoldver=$env{'form.numoldver'};
3663:
3664: my $msg = '';
3665: my %attachments = ();
3666: my %currattach = ();
3667: if ($idx) {
3668: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3669: }
3670: &Apache::lonenc::check_encrypt(\$symb);
3671:
3672: my $end_page =
3673: &Apache::loncommon::end_page();
3674:
3675: $r->print(<<END);
3676: $start_page
3677: $toolarge
3678: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3679:
3680: <h1>$lt{'clic'}</h1>
3681: END
3682: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3683: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3684: $r->print('<b>'.$subject.'</b>');
3685: $r->print(&Apache::lonhtmlcommon::row_closure());
3686: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3687: $r->print('<input type="file" name="addnewattach" class="LC_flUpload" />'
3688: .'<input type="hidden" id="LC_free_space" value="131072" />'
3689: .'<input type="button" name="upload" value="Upload" '
3690: .'onclick="this.form.submit()" /> '.$attachmaxtext);
3691: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3692: $r->print(&Apache::lonhtmlcommon::row_closure());
3693: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3694: if ($idx) {
3695: if ($attachmenturls) {
3696: my @currold = keys(%currattach);
3697: if (@currold > 0) {
3698: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3699: foreach my $id (@currold) {
3700: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3701: $attachurl =~ m#/([^/]+)$#;
3702: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3703: }
3704: $r->print("<br />");
3705: }
3706: }
3707: }
3708: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3709: $r->print($lt{'chth'}.'<br />'."\n");
3710: foreach my $attach (@{$currnewattach}) {
3711: $attach =~ m#/([^/]+)$#;
3712: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3713: }
3714: }
3715: }
3716: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3717: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3718: $r->print(<<END);
3719: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3720: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3721: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3722: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3723: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3724: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3725: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3726: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3727: END
3728: foreach my $item (@{$currnewattach}) {
3729: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3730: }
3731: foreach my $item (@{$currdelold}) {
3732: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3733: }
3734: $r->print(<<END);
3735: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3736: </form>
3737: $end_page
3738: END
3739: return;
3740: }
3741:
3742: sub process_attachments {
3743: my ($currnewattach,$currdelold,$keepold) = @_;
3744:
3745: @{$currnewattach}=
3746: &Apache::loncommon::get_env_multiple('form.currnewattach');
3747: @{$currdelold}=
3748: &Apache::loncommon::get_env_multiple('form.deloldattach');
3749: if (exists($env{'form.delnewattach'})) {
3750: my @currdelnew =
3751: &Apache::loncommon::get_env_multiple('form.delnewattach');
3752: my @currnew = ();
3753: foreach my $newone (@{$currnewattach}) {
3754: my $delflag = 0;
3755: foreach my $item (@currdelnew) {
3756: if ($newone eq $item) {
3757: $delflag = 1;
3758: last;
3759: }
3760: }
3761: unless ($delflag) {
3762: push(@currnew, $newone);
3763: }
3764: }
3765: @{$currnewattach} = @currnew;
3766: }
3767: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3768: }
3769:
3770: sub generate_attachments_button {
3771: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3772: $numoldver,$mode,$blockblog) = @_;
3773: my $origpage = $ENV{'REQUEST_URI'};
3774: my $att=$attachnum.' '.&mt("attachments");
3775: my %lt = &Apache::lonlocal::texthash(
3776: 'clic' => 'Add/remove attachments',
3777: );
3778: my $response = (<<END);
3779: <br />
3780: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3781: <input type="button" value="$lt{'clic'}"
3782: 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);
3783: END
3784: if (!$blockblog) {
3785: $response .= 'setblogvalue();';
3786: }
3787: unless ($mode eq 'board') {
3788: $response .= 'javascript:anonchk();';
3789: }
3790: $response .= (<<ENDATTACH);
3791: this.form.submit();" />
3792: <input type="hidden" name="origpage" value="$origpage" />
3793: <input type="hidden" name="idx" value="$idx" />
3794: <input type="hidden" name="timestamp" value="$now" />
3795: <input type="hidden" name="subject" />
3796: <input type="hidden" name="comment" />
3797: <input type="hidden" name="blog" value="0" />
3798: <input type="hidden" name="discuss" value="0" />
3799: <input type="hidden" name="numoldver" value="$numoldver" />
3800: ENDATTACH
3801: if (defined($deloldattach)) {
3802: if (@{$deloldattach} > 0) {
3803: foreach my $delatt (@{$deloldattach}) {
3804: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3805: }
3806: }
3807: }
3808: if (defined($currnewattach)) {
3809: if (@{$currnewattach} > 0) {
3810: foreach my $attach (@{$currnewattach}) {
3811: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3812: }
3813: }
3814: }
3815: $response .= '</form>';
3816: return $response;
3817: }
3818:
3819: sub extract_attachments {
3820: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3821: %{$attachments}=();
3822: &get_post_attachments($attachments,$attachmenturls);
3823: foreach my $id (sort(keys(%{$attachments}))) {
3824: if (exists($$attachments{$id}{$numoldver})) {
3825: if (defined($currdelold)) {
3826: if (@{$currdelold} > 0) {
3827: unless (grep/^$id$/,@{$currdelold}) {
3828: $$currattach{$id} = $$attachments{$id}{$numoldver};
3829: }
3830: } else {
3831: $$currattach{$id} = $$attachments{$id}{$numoldver};
3832: }
3833: } else {
3834: $$currattach{$id} = $$attachments{$id}{$numoldver};
3835: }
3836: }
3837: }
3838: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3839: if (@attached == 1) {
3840: my $id = $attached[0];
3841: my $attachurl;
3842: if ($attachmenturls =~ m/^<attachment id="0">/) {
3843: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3844: } else {
3845: $attachurl = $$attachments{$id}{'filename'};
3846: }
3847: $attachurl=~m|/([^/]+)$|;
3848: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3849: $1.'</tt></a><br />';
3850: &Apache::lonnet::allowuploaded('/adm/feedback',
3851: $attachurl);
3852: } elsif (@attached > 1) {
3853: $$message.='<ol>';
3854: foreach my $attach (@attached) {
3855: my $id = $attach;
3856: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3857: my ($fname)
3858: =($attachurl=~m|/([^/]+)$|);
3859: $$message .= '<li><a href="'.$attachurl.
3860: '"><tt>'.
3861: $fname.'</tt></a></li>';
3862: &Apache::lonnet::allowuploaded('/adm/feedback',
3863: $attachurl);
3864: }
3865: $$message .= '</ol>';
3866: }
3867: }
3868:
3869: sub construct_attachmenturl {
3870: my ($currnewattach,$keepold,$symb,$idx)=@_;
3871: my $oldattachmenturl;
3872: my $newattachmenturl;
3873: my $startnum = 0;
3874: my $currver = 0;
3875: if (($env{'form.editdisc'}) && ($idx)) {
3876: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3877: $env{'course.'.$env{'request.course.id'}.'.domain'},
3878: $env{'course.'.$env{'request.course.id'}.'.num'});
3879: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3880: if ($contrib{$idx.':history'}) {
3881: if ($contrib{$idx.':history'} =~ /:/) {
3882: my @oldversions = split(/:/,$contrib{$idx.':history'});
3883: $currver = 1 + scalar(@oldversions);
3884: } else {
3885: $currver = 2;
3886: }
3887: } else {
3888: $currver = 1;
3889: }
3890: if ($oldattachmenturl) {
3891: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3892: my %attachments = ();
3893: my $prevver = $currver-1;
3894: &get_post_attachments(\%attachments,$oldattachmenturl);
3895: my $numattach = scalar(keys(%attachments));
3896: $startnum += $numattach;
3897: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3898: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3899: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3900: unless ($item eq 'filename') {
3901: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3902: }
3903: }
3904: if (grep/^$num$/,@{$keepold}) {
3905: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3906: }
3907: $newattachmenturl .= '</attachment>';
3908: }
3909: } else {
3910: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3911: unless (grep/^0$/,@{$keepold}) {
3912: $newattachmenturl .= '<post id="1">n</post>';
3913: }
3914: $newattachmenturl .= '</attachment>';
3915: $startnum ++;
3916: }
3917: }
3918: }
3919: for (my $i=0; $i<@{$currnewattach}; $i++) {
3920: my $attachnum = $startnum + $i;
3921: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3922: }
3923: return $newattachmenturl;
3924: }
3925:
3926: sub add_blog_checkbox {
3927: my ($crstype) = @_;
3928: my $checkstatus;
3929: if ($env{'form.blog'}) {
3930: $checkstatus = 'checked="checked"';
3931: }
3932: my $output = '
3933: <script type="text/javascript">
3934: function setblogvalue() {
3935: if (document.mailform.blog.checked) {
3936: document.attachment.blog.value = 1;
3937: } else {
3938: document.attachment.blog.value = 0;
3939: }
3940: }
3941: </script><br />
3942: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3943: if ($crstype eq 'Community') {
3944: $output .= &mt('Add to my public community blog');
3945: } else {
3946: $output .= &mt('Add to my public course blog');
3947: }
3948: $output .= '</label><br />'."\n";
3949: return $output;
3950: }
3951:
3952: sub has_discussion {
3953: my $resourcesref = shift;
3954: my $navmap = Apache::lonnavmaps::navmap->new();
3955: if (defined($navmap)) {
3956: my @allres=$navmap->retrieveResources();
3957: foreach my $resource (@allres) {
3958: if ($resource->hasDiscussion()) {
3959: my $ressymb = $resource->wrap_symb();
3960: if (ref($resourcesref) eq 'ARRAY') {
3961: push(@{$resourcesref}, $ressymb);
3962: }
3963: }
3964: }
3965: } else {
3966: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3967: }
3968: return;
3969: }
3970:
3971: sub sort_filter_names {
3972: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3973: if (ref($sort_types) eq 'HASH') {
3974: %{$sort_types} = (
3975: ascdate => 'Date order - oldest first',
3976: descdate => 'Date order - newest first',
3977: thread => 'Threaded',
3978: subject => 'By subject',
3979: username => 'By domain and username',
3980: lastfirst => 'By last name, first name'
3981: );
3982: }
3983: my @courseroles = qw(st in ta ep ad);
3984: if ($crstype eq 'Community') {
3985: push(@courseroles,'co');
3986: } else {
3987: push(@courseroles,'cc');
3988: }
3989: if (ref($role_types) eq 'HASH') {
3990: foreach my $role (@courseroles) {
3991: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3992: }
3993: $role_types->{'all'} = 'All roles';
3994: $role_types->{'cr'} = 'Custom role';
3995: }
3996: if (ref($status_types) eq 'HASH') {
3997: %{$status_types} = (
3998: all => 'Roles of any status',
3999: Active => 'Only active roles',
4000: Expired => 'Only past roles',
4001: Future => 'Only future roles',
4002: );
4003: }
4004: }
4005:
4006: sub handler {
4007: my $r = shift;
4008: if ($r->header_only) {
4009: &Apache::loncommon::content_type($r,'text/html');
4010: $r->send_http_header;
4011: return OK;
4012: }
4013:
4014: # --------------------------- Get query string for limited number of parameters
4015:
4016: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
4017: ['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']);
4018: my $group = $env{'form.group'};
4019: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4020: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4021:
4022: my %attachmax = (
4023: text => &mt('(128 KB max size)'),
4024: num => 131072,
4025: );
4026: if ($env{'form.editdisc'}) {
4027: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
4028: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4029: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
4030: my $feedurl=&Apache::lonnet::clutter($url);
4031: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />',
4032: '0','0','','',$env{'form.previous'},undef,undef,undef,
4033: undef,undef,undef,$group);
4034: return OK;
4035: }
4036: }
4037: if ($env{'form.discsymb'}) {
4038: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
4039: my $readkey = $symb.'_read';
4040: my $chgcount = 0;
4041: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
4042: foreach my $key (keys(%env)) {
4043: if ($key =~ m/^form\.postunread_(\d+)/) {
4044: if ($readinghash{$readkey} =~ /\.$1\./) {
4045: $readinghash{$readkey} =~ s/\.$1\.//;
4046: $chgcount ++;
4047: }
4048: } elsif ($key =~ m/^form\.postread_(\d+)/) {
4049: unless ($readinghash{$readkey} =~ /\.$1\./) {
4050: $readinghash{$readkey} .= '.'.$1.'.';
4051: $chgcount ++;
4052: }
4053: }
4054: }
4055: if ($chgcount > 0) {
4056: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4057: \%readinghash,$env{'user.domain'},$env{'user.name'});
4058: }
4059: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
4060: '0','0','','',$env{'form.previous'},'','','',
4061: undef,undef,undef,$group);
4062: return OK;
4063: }
4064: if ($env{'form.allversions'}) {
4065: &Apache::loncommon::content_type($r,'text/html');
4066: &Apache::loncommon::no_cache($r);
4067: $r->send_http_header;
4068:
4069: # Breadcrumbs
4070: my $brcrum = [{'href' => '',
4071: 'text' => 'Discussion Post Versions'}];
4072:
4073: my %parms=();
4074: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
4075:
4076: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
4077:
4078: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
4079: ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
4080: my $ressymb = &wrap_symb($symb);
4081: my $seeid;
4082: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
4083: $seeid = 1;
4084: }
4085: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4086: if ($idx > 0) {
4087: my %messages = ();
4088: my %subjects = ();
4089: my %attachmsgs = ();
4090: my %allattachments = ();
4091: my %imsfiles = ();
4092: my ($screenname,$plainname,$showaboutme);
4093: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4094: $cdom,$cnum);
4095: $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
4096: }
4097: $r->print(&Apache::loncommon::end_page());
4098: return OK;
4099: }
4100: if ($env{'form.posterlist'}) {
4101: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4102: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
4103: $env{'form.sortposts'});
4104: return OK;
4105: }
4106: if ($env{'form.userpick'}) {
4107: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
4108: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
4109: my $numpicks = @posters;
4110: my %discinfo;
4111: $discinfo{$symb.'_userpick'} = join('&',@posters);
4112: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4113: \%discinfo,$env{'user.domain'},$env{'user.name'});
4114: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4115: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
4116: '',$numpicks,$group);
4117: return OK;
4118: }
4119: if ($env{'form.applysort'}) {
4120: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4121: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4122: '',$env{'form.previous'},$env{'form.sortposts'},
4123: $env{'form.rolefilter'},$env{'form.statusfilter'},
4124: $env{'form.sectionpick'},$env{'form.grouppick'},
4125: undef,$group);
4126: return OK;
4127: } elsif ($env{'form.cmd'} eq 'sortfilter') {
4128: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4129: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
4130: return OK;
4131: } elsif ($env{'form.navtime'}) {
4132: my %discinfo = ();
4133: my @resources = ();
4134: if (defined($env{'form.navmaps'})) {
4135: if ($env{'form.navmaps'} =~ /:/) {
4136: @resources = split(/:/,$env{'form.navmaps'});
4137: } else {
4138: @resources = ("$env{'form.navmaps'}");
4139: }
4140: } else {
4141: &has_discussion(\@resources);
4142: }
4143: my $numitems = @resources;
4144: my $feedurl = '/adm/navmaps';
4145: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
4146: my %lt = &Apache::lonlocal::texthash(
4147: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
4148: );
4149: foreach my $res (@resources) {
4150: my $ressymb=$res;
4151: &Apache::lonenc::check_decrypt(\$ressymb);
4152: my $lastkey = $ressymb.'_lastread';
4153: $discinfo{$lastkey} = $env{'form.navtime'};
4154: }
4155: my $textline = '<b>'.
4156: &mt('Marked "New" posts as read in a total of [_1] resources/discussion boards.',
4157: $numitems).
4158: '</b>';
4159: if ($numitems > 0) {
4160: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4161: \%discinfo,$env{'user.domain'},$env{'user.name'});
4162: } else {
4163: $textline = "<b>$lt{'twnp'}</b>";
4164: }
4165: &Apache::loncommon::content_type($r,'text/html');
4166: $r->send_http_header;
4167: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
4168: my %onload;
4169:
4170: my $start_page=
4171: &Apache::loncommon::start_page('New posts marked as read',undef,
4172: {'redirect' => [2,$feedurl],
4173: 'only_body' => 1,
4174: 'add_entries' => \%onload});
4175: my $end_page = &Apache::loncommon::end_page();
4176: $r->print (<<ENDREDIR);
4177: $start_page
4178: <img align="right" src="$logo" />
4179: $textline
4180: <form name="reldt" action="$feedurl" target="loncapaclient">
4181: </form>
4182: <br />
4183: $end_page
4184: ENDREDIR
4185: return OK;
4186: } elsif ($env{'form.modifydisp'}) {
4187: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
4188: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
4189: split(/_/,$env{'form.changes'});
4190: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
4191: $dispchgB,$markchg,$toggchg,$feedurl);
4192: return OK;
4193: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
4194: $env{'form.allposts'} || $env{'form.onlyunread'} ||
4195: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
4196: $env{'form.toggon'} || $env{'form.markread'}) {
4197: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4198: my %discinfo;
4199: # ------------------------ Modify setting for read/unread toggle for each post
4200: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
4201: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
4202: # --------- Modify setting for identification of 'NEW' posts in this discussion
4203: if ($env{'form.markondisp'}) {
4204: $discinfo{$symb.'_lastread'} = time;
4205: $discinfo{$symb.'_markondisp'} = 1;
4206: }
4207: if ($env{'form.markonread'}) {
4208: if ( $env{'form.previous'} > 0 ) {
4209: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
4210: }
4211: $discinfo{$symb.'_markondisp'} = 0;
4212: }
4213: # --------------------------------- Modify display setting for this discussion
4214: if ($env{'form.allposts'}) {
4215: $discinfo{$symb.'_showonlyunread'} = 0;
4216: $discinfo{$symb.'_showonlyunmark'} = 0;
4217: }
4218: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
4219: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
4220: # ----------------------------------------------------- Mark new posts not NEW
4221: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
4222: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4223: \%discinfo,$env{'user.domain'},$env{'user.name'});
4224: my $previous=$env{'form.previous'};
4225: if ($env{'form.markondisp'}) { $previous=undef; }
4226: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4227: '0','0','','',$previous,'','','','','','',$group);
4228: return OK;
4229: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4230: # ----------------------------------------------------------------- Hide/unhide
4231: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4232: my ($symb,$idx)=split(/\:\:\:/,$entry);
4233: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4234: my $ressymb = &wrap_symb($symb);
4235:
4236: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4237: unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
4238: &redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
4239: '0','0','','',$env{'form.previous'},'','','','',
4240: undef,undef,$group);
4241: return OK;
4242: }
4243:
4244: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4245: $cdom,$cnum);
4246:
4247: my $currenthidden=$contrib{'hidden'};
4248: my $currentstudenthidden=$contrib{'studenthidden'};
4249:
4250: if ($env{'form.hide'}) {
4251: $currenthidden.='.'.$idx.'.';
4252: unless ($seehidden) {
4253: $currentstudenthidden.='.'.$idx.'.';
4254: }
4255: } else {
4256: $currenthidden=~s/\.$idx\.//g;
4257: }
4258: my %newhash=('hidden' => $currenthidden);
4259: if ( ($env{'form.hide'}) && (!$seehidden) ) {
4260: $newhash{'studenthidden'} = $currentstudenthidden;
4261: }
4262: if ($env{'form.hide'}) {
4263: my $changelast = 0;
4264: my $newlast;
4265: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4266: if ($changelast) {
4267: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4268: $cdom,$cnum);
4269: }
4270: }
4271: my $result;
4272: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4273: $cdom,$cnum) eq 'ok') {
4274: my $prefix=$symb.':'.$idx.':';
4275: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4276: '^'.$prefix);
4277: my ($totallikes,$totalunlikes);
4278: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4279: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4280: }
4281: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4282: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4283: }
4284: if ($totallikes || $totalunlikes) {
4285: my ($chglikes,$chgunlikes,$context);
4286: if ($env{'form.hide'}) {
4287: $chglikes = -1 * $totallikes;
4288: $chgunlikes = -1 * $totalunlikes;
4289: $context = 'hide';
4290: } else {
4291: $chglikes = $totallikes;
4292: $chgunlikes = $totalunlikes;
4293: $context = 'unhide';
4294: }
4295: &storediscussionlikes($chglikes,$chgunlikes,
4296: $contrib{$idx.':sendername'},
4297: $contrib{$idx.':senderdomain'},
4298: $env{'request.course.id'},
4299: $context);
4300:
4301: }
4302: $result = &mt('Changed discussion status');
4303: } else {
4304: $result = &mt('Discussion status unchanged');
4305: }
4306: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4307: $env{'form.previous'},undef,undef,undef,
4308: undef,undef,undef,$group);
4309: return OK;
4310: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4311: # ----------------------------------------------------------------- Like/unlike
4312: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4313: my ($symb,$idx)=split(/\:\:\:/,$entry);
4314: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4315: my $result;
4316: if ($idx > 0) {
4317: my $realsymb = &get_realsymb($symb);
4318: my $status='OPEN';
4319: if ($Apache::lonhomework::parsing_a_problem ||
4320: $Apache::lonhomework::parsing_a_task) {
4321: $status=$Apache::inputtags::status[-1];
4322: }
4323: if (&discussion_vote_available($status,$realsymb)) {
4324: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4325: $cdom,$cnum);
4326: my $ownpost;
4327: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4328: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4329: $ownpost = 1;
4330: }
4331: if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
4332: $result = &mt('Vote not registered.').' ';
4333: }
4334: if ($ownpost) {
4335: $result .= &mt('No voting for your own posts.');
4336: } elsif ($contrib{$idx.':hidden'}) {
4337: $result .= &mt('No voting for hidden posts.');
4338: } elsif ($contrib{$idx.':deleted'}) {
4339: $result .= &mt('No voting for deleted posts.');
4340: } else {
4341: #
4342: # Likes and unlikes are in db-file "disclikes" of the course
4343: # The prefix is the $symb to identify the resource discussion,
4344: # and the $idx to identify the entry
4345: #
4346: my $prefix=$symb.':'.$idx.':';
4347: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4348: '^'.$prefix);
4349:
4350: # Get current like or unlike status for the $idx for this user.
4351: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4352: my ($userlikes,$userunlikes);
4353: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4354: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4355: $userlikes = 1;
4356: }
4357: }
4358: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4359: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4360: $userunlikes = 1;
4361: }
4362: }
4363: # Get the current "likes" count
4364: my $likescount=$likes{$prefix.'likes'};
4365: # Find out if they already voted
4366: # Users cannot like a post twice, or unlike it twice.
4367: # They can change their mind, though.
4368: my $alreadyflag=0;
4369: my $votetype;
4370: if ($env{'form.like'}) {
4371: if ($userlikes) {
4372: $alreadyflag=1;
4373: } elsif ($userunlikes) {
4374: delete($likes{$prefix.'unlikers'}{$thisuser});
4375: $votetype = 'switch';
4376: $likescount++;
4377: } else {
4378: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4379: $likes{$prefix.'likers'}{$thisuser} = 1;
4380: } else {
4381: $likes{$prefix.'likers'} = {$thisuser => 1};
4382: }
4383: $likescount++;
4384: }
4385: } else {
4386: if ($userunlikes) {
4387: $alreadyflag=1;
4388: } elsif ($userlikes) {
4389: delete($likes{$prefix.'likers'}{$thisuser});
4390: $votetype = 'switch';
4391: $likescount--;
4392: } else {
4393: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4394: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4395: } else {
4396: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4397: }
4398: $likescount--;
4399: }
4400: }
4401: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4402: if ($alreadyflag) {
4403: if ($env{'form.like'}) {
4404: $result= &mt("'Like' already registered");
4405: } else {
4406: $result= &mt("'Unlike' already registered");
4407: }
4408: } else {
4409: my %newhash=($prefix.'likes' => $likescount,
4410: $prefix.'likers' => $likes{$prefix.'likers'},
4411: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4412: # Store data in db-file "disclikes"
4413: if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
4414: # Also store with the person who posted the liked/unliked entry
4415: my ($chglike,$chgunlike);
4416: if ($env{'form.like'}) {
4417: if ($votetype eq 'switch') {
4418: $chglike = 0;
4419: $chgunlike = -1;
4420: } else {
4421: $chglike = 1;
4422: $chgunlike = 0;
4423: }
4424: &storediscussionlikes($chglike,$chgunlike,
4425: $contrib{$idx.':sendername'},
4426: $contrib{$idx.':senderdomain'},
4427: $env{'request.course.id'},'like');
4428: $result=&mt("Registered 'Like'");
4429: } else {
4430: if ($votetype eq 'switch') {
4431: $chglike = -1;
4432: $chgunlike = 0;
4433: } else {
4434: $chglike = 0;
4435: $chgunlike = 1;
4436: }
4437: &storediscussionlikes($chglike,$chgunlike,
4438: $contrib{$idx.':sendername'},
4439: $contrib{$idx.':senderdomain'},
4440: $env{'request.course.id'},'unlike');
4441: $result=&mt("Registered 'Unlike'");
4442: }
4443: } else {
4444: # Oops, something went wrong
4445: $result=&mt("Failed to register vote");
4446: }
4447: }
4448: }
4449: } else {
4450: $result=&mt('Voting unavailable for this discussion');
4451: }
4452: } else {
4453: $result=&mt('Invalid post number');
4454: }
4455: &redirect_back($r,$feedurl,$result.'<br />',
4456: '0','0','','',$env{'form.previous'},undef,undef,undef,
4457: undef,undef,undef,$group);
4458: return OK;
4459: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4460: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4461: if ($env{'form.cmd'} eq 'threadedoff') {
4462: &Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'});
4463: &Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'});
4464: &Apache::lonnet::del('environment',['threadeddiscussion']);
4465: &Apache::lonnet::delenv('environment.threadeddiscussion');
4466: } else {
4467: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4468: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4469: &Apache::lonnet::del('environment',['unthreadeddiscussion']);
4470: &Apache::lonnet::delenv('environment.unthreadeddiscussion');
4471: }
4472: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4473: '0','0','','',$env{'form.previous'},undef,undef,undef,
4474: undef,undef,undef,$group);
4475: return OK;
4476: } elsif ($env{'form.deldisc'}) {
4477: # --------------------------------------------------------------- Hide for good
4478: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4479: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4480: my $ressymb=&wrap_symb($symb);
4481:
4482: unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4483: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
4484: '0','0','','',$env{'form.previous'},'','','','',
4485: undef,undef,$group);
4486: return OK;
4487: }
4488: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4489: $cdom,$cnum);
4490: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4491: if ($changelast) {
4492: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4493: $cdom,$cnum);
4494: }
4495: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4496:
4497: my $result;
4498: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4499: $cdom,$cnum) eq 'ok') {
4500: $result = &mt('Changed discussion status');
4501: my $prefix=$symb.':'.$idx.':';
4502: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4503: '^'.$prefix);
4504: my ($totallikes,$totalunlikes);
4505: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4506: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4507: }
4508: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4509: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4510: }
4511: if ($totallikes || $totalunlikes) {
4512: my $chglikes = -1 * $totallikes;
4513: my $chgunlikes = -1 * $totalunlikes;
4514: &storediscussionlikes($chglikes,$chgunlikes,
4515: $contrib{$idx.':sendername'},
4516: $contrib{$idx.':senderdomain'},
4517: $env{'request.course.id'},
4518: 'delete');
4519: }
4520: } else {
4521: $result = &mt('Discussion status unchanged');
4522: }
4523: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4524: $env{'form.previous'},undef,undef,undef,
4525: undef,undef,undef,$group);
4526: return OK;
4527: } elsif ($env{'form.preview'}) {
4528: # -------------------------------------------------------- User wants a preview
4529: &show_preview($r);
4530: return OK;
4531: } elsif ($env{'form.attach'}) {
4532: # -------------------------------------------------------- Work on attachments
4533: &Apache::loncommon::content_type($r,'text/html');
4534: $r->send_http_header;
4535: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4536: my (@currnewattach,@currdelold,@keepold,$toolarge);
4537: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4538: if (exists($env{'form.addnewattach.filename'})) {
4539: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4540: my $subdir = 'feedback/'.$env{'form.timestamp'};
4541: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4542: push(@currnewattach, $newattachment);
4543: } else {
4544: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4545: }
4546: }
4547: my $attachmenturls;
4548: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4549: my $idx = $env{'form.idx'};
4550: if ($idx) {
4551: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4552: $cdom,$cnum);
4553: $attachmenturls = $contrib{$idx.':attachmenturl'};
4554: }
4555: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4556: $attachmenturls,$attachmax{'text'},$toolarge);
4557: return OK;
4558: } elsif ($env{'form.export'}) {
4559: &Apache::loncommon::content_type($r,'text/html');
4560: $r->send_http_header;
4561: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4562: my $mode='board';
4563: my $status='OPEN';
4564: my $previous=$env{'form.previous'};
4565: if ($feedurl =~ /$LONCAPA::assess_re/) {
4566: $mode='problem';
4567: $status=$Apache::inputtags::status[-1];
4568: }
4569:
4570: my $discussion = &list_discussion($mode,$status,$symb);
4571: my $start_page =
4572: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4573: my $end_page =
4574: &Apache::loncommon::end_page();
4575: $r->print($start_page.$discussion.$end_page);
4576: return OK;
4577:
4578: } elsif ($env{'form.undeleteall'}) {
4579: &Apache::loncommon::content_type($r,'text/html');
4580: $r->send_http_header;
4581: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4582: my $ressymb=&wrap_symb($symb);
4583: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4584: if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4585: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4586: $cdom,$cnum);
4587: $contrib{'deleted'} =~ s/^\.//;
4588: $contrib{'deleted'} =~ s/\.$//;
4589: my $confirm_msg;
4590: if ($contrib{'deleted'} ne '') {
4591: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4592: $cdom,$cnum) eq 'ok') {
4593: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
4594: my @ids = split(/\.\./,$contrib{'deleted'});
4595: my (%chglikes,%chgunlikes);
4596: foreach my $idx (@ids) {
4597: my $uname = $contrib{$idx.':sendername'};
4598: my $udom = $contrib{$idx.':senderdomain'};
4599: my ($totallikes,$totalunlikes);
4600: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
4601: $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
4602: }
4603: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
4604: $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
4605: }
4606: if ($totallikes || $totalunlikes) {
4607: $chglikes{$uname.':'.$udom} += $totallikes;
4608: $chgunlikes{$uname.':'.$udom} += $totalunlikes;
4609: }
4610: }
4611: foreach my $user (keys(%chglikes)) {
4612: my ($uname,$udom) = split(/:/,$user);
4613: &storediscussionlikes($chglikes{$user},$chgunlikes{$user},
4614: $uname,$udom,$env{'request.course.id'},
4615: 'undelete');
4616: }
4617: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries"));
4618: } else {
4619: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1);
4620: }
4621: } else {
4622: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1);
4623: }
4624: $r->print(
4625: '<br />'
4626: .&Apache::loncommon::confirmwrapper($confirm_msg)
4627: .&Apache::lonhtmlcommon::actionbox(
4628: ["<a href='$feedurl'>".&mt("Return and reload")."</a>"])
4629: );
4630: }
4631: $r->print(&Apache::loncommon::end_page());
4632: return OK;
4633: } else {
4634: # ------------------------------------------------------------- Normal feedback
4635: my $feedurl=$env{'form.postdata'};
4636: $feedurl=~s/^https?\:\/\///;
4637: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4638: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4639: $feedurl=~s/\?.+$//;
4640:
4641: my $symb;
4642: if ($env{'form.replydisc'}) {
4643: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4644: } elsif ($env{'form.editdisc'}) {
4645: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4646: } elsif ($env{'form.origpage'}) {
4647: $symb="";
4648: } elsif ($env{'form.sendmessageonly'}) {
4649: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4650: } else {
4651: $symb=&Apache::lonnet::symbread($feedurl);
4652: }
4653: unless ($symb) {
4654: $symb=$env{'form.symb'};
4655: }
4656: if (defined($symb)) {
4657: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4658: } else {
4659: # backward compatibility (bulletin boards used to be 'wrapped')
4660: &Apache::lonenc::check_decrypt(\$feedurl);
4661: &dewrapper(\$feedurl);
4662: }
4663: my $goahead=1;
4664: if ($feedurl=~/$LONCAPA::assess_re/) {
4665: unless ($symb) { $goahead=0; }
4666: }
4667: if (!$goahead) {
4668: # Ambiguous Problem Resource
4669: $r->internal_redirect('/adm/ambiguous');
4670: return OK;
4671: }
4672: if ($feedurl eq '') {
4673: &Apache::loncommon::content_type($r,'text/html');
4674: $r->send_http_header;
4675: &no_redirect_back($r);
4676: return OK;
4677: }
4678: # Go ahead with feedback, no ambiguous reference
4679: unless (
4680: (
4681: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4682: )
4683: ||
4684: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4685: ||
4686: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4687: ||
4688: (($env{'request.course.id'}) && ($feedurl =~ /ext\.tool$/))
4689: ) {
4690: &Apache::loncommon::content_type($r,'text/html');
4691: $r->send_http_header;
4692: # Unable to give feedback
4693: &Apache::lonenc::check_encrypt(\$feedurl);
4694: &no_redirect_back($r,$feedurl,2);
4695: return OK;
4696: }
4697: # --------------------------------------------------- Print login screen header
4698: unless ($env{'form.sendit'}) {
4699: &Apache::lonenc::check_encrypt(\$feedurl);
4700: &Apache::loncommon::content_type($r,'text/html');
4701: $r->send_http_header;
4702: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4703: my ($blocked,$blocktext) =
4704: &Apache::loncommon::blocking_status('boards');
4705: if ($blocked) {
4706: $r->print(&blocked_reply_or_edit($blocktext));
4707: return OK;
4708: }
4709: }
4710: my $options=&screen_header($feedurl,$symb,$group);
4711: if ($options) {
4712: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4713: } else {
4714: &fail_redirect($r,$feedurl,2);
4715: }
4716: return OK;
4717: }
4718:
4719: # Get previous user input
4720: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4721: $symb,$env{'user.name'},$env{'user.domain'},
4722: $env{'request.course.id'});
4723:
4724: # Get output from resource
4725: &Apache::lonenc::check_encrypt(\$feedurl);
4726: my $usersaw=&resource_output($feedurl);
4727:
4728: # Get resource answer (need to allow student to view grades for this to work)
4729: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4730: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4731: my $useranswer=
4732: &Apache::loncommon::get_student_answers(
4733: $symb,$env{'user.name'},$env{'user.domain'},
4734: $env{'request.course.id'});
4735: &Apache::lonnet::delenv('allowed.vgr');
4736: # Get attachments, if any, and not too large
4737: my $attachmenturl='';
4738: my $toolarge='';
4739: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4740: ($env{'form.replydisc'})) {
4741: my ($symb,$idx);
4742: if ($env{'form.replydisc'}) {
4743: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4744: } elsif ($env{'form.editdisc'}) {
4745: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4746: } elsif ($env{'form.origpage'}) {
4747: $symb = $env{'form.symb'};
4748: }
4749: &Apache::lonenc::check_decrypt(\$symb);
4750: my @currnewattach = ();
4751: my @deloldattach = ();
4752: my @keepold = ();
4753: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4754: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4755: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4756: } elsif ($env{'form.attachment.filename'}) {
4757: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4758: my $now = time;
4759: my $subdir = 'feedback/'.$now;
4760: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4761: } else {
4762: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4763: }
4764: }
4765: # Filter HTML out of message (could be nasty)
4766: my $override;
4767: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4768: $override = 1;
4769: }
4770: my $message=&clear_out_html($env{'form.comment'},$override);
4771:
4772: # Assemble email
4773: my ($email,$citations)=&assemble_email($message,$prevattempts,
4774: $usersaw,$useranswer);
4775:
4776: # Who gets this?
4777: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4778:
4779: # Actually send mail
4780: my $clientip = &Apache::lonnet::get_requestor_ip($r);
4781: my ($status,$numsent,$delay)=&send_msg(&clear_out_html($env{'form.subject'}),
4782: $feedurl,$email,$citations,
4783: $attachmenturl,$usersymb,$clientip,%to);
4784:
4785: # Discussion? Store that.
4786: my $numpost=0;
4787: if ( ($env{'form.discuss'} ne ''
4788: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4789: || $env{'form.anondiscuss'} ne '') {
4790: my $subject = &clear_out_html($env{'form.subject'});
4791: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4792: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4793: $subject,$group);
4794: $numpost++;
4795: }
4796:
4797: # Add to blog?
4798:
4799: my $blog='';
4800: if ($env{'form.blog'}) {
4801: my $subject = &clear_out_html($env{'form.subject'});
4802: $status.=&Apache::lonrss::addentry($env{'user.name'},
4803: $env{'user.domain'},
4804: 'CourseBlog_'.$env{'request.course.id'},
4805: $subject,$message,$feedurl,'public');
4806: if (&Apache::loncommon::course_type() eq 'Community') {
4807: $blog='<br />'.&mt('Added to my community blog').'<br />';
4808: } else {
4809: $blog='<br />'.&mt('Added to my course blog').'<br />';
4810: }
4811: }
4812:
4813: # Receipt screen and redirect back to where came from
4814: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},
4815: undef,undef,undef,undef,undef,undef,$group,$toolarge,$delay);
4816: }
4817: return OK;
4818: }
4819:
4820: sub blocked_reply_or_edit {
4821: my ($blocktext) = @_;
4822: return
4823: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4824: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4825: &mt('Back to previous page').
4826: &Apache::loncommon::end_page();
4827: }
4828:
4829: sub wrap_symb {
4830: my ($ressymb)=@_;
4831: if ($ressymb =~ /bulletin___\d+___/) {
4832: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4833: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4834: }
4835: }
4836: return $ressymb;
4837: }
4838:
4839: sub dewrapper {
4840: my ($feedurl)=@_;
4841: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4842: $$feedurl=~s|^/adm/wrapper||;
4843: }
4844: }
4845:
4846: sub get_feedurl {
4847: my ($symb)=@_;
4848: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4849: my $feedurl = &Apache::lonnet::clutter($url);
4850: &dewrapper(\$feedurl);
4851: return $feedurl;
4852: }
4853:
4854: sub get_feedurl_and_clean_symb {
4855: my ($symb)=@_;
4856: &Apache::lonenc::check_decrypt(\$symb);
4857: # backward compatibility (bulletin boards used to be 'wrapped')
4858: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4859: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4860: }
4861: my $feedurl = &get_feedurl($symb);
4862: return ($symb,$feedurl);
4863: }
4864:
4865: sub editing_allowed {
4866: my ($postid,$group) = @_;
4867: $postid = &unescape($postid);
4868: my $can_edit = 0;
4869: if ($group ne '') {
4870: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4871: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4872: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4873: if (&check_group_priv($group,'egp') eq 'ok') {
4874: $can_edit = 1;
4875: }
4876: return $can_edit;
4877: }
4878: }
4879: my $cid = $env{'request.course.id'};
4880: my $role = (split(/\./,$env{'request.role'}))[0];
4881: my $section = $env{'request.course.sec'};
4882: my $allow_editing_config =
4883: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4884: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4885: $can_edit = 1;
4886: } else {
4887: foreach my $editor (split(/,/,$allow_editing_config)) {
4888: my ($editor_role,$editor_sec) = split(/:/,$editor);
4889: if ($editor_role eq $role
4890: && defined($editor_sec)
4891: && defined($section)
4892: && $editor_sec eq $section) {
4893: $can_edit = 1;
4894: last;
4895: }
4896: if ($editor_role eq $role
4897: && !defined($editor_sec)) {
4898: $can_edit = 1;
4899: }
4900: }
4901: }
4902: return $can_edit;
4903: }
4904:
4905: sub check_group_priv {
4906: my ($group,$grp_priv) = @_;
4907: foreach my $priv ('mdg','vcg') {
4908: my $checkcourse = $env{'request.course.id'}.
4909: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4910: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4911: return 'ok';
4912: }
4913: }
4914: if ($grp_priv && $group ne '') {
4915: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4916: return 'ok';
4917: }
4918: }
4919: return '';
4920: }
4921:
4922: sub group_args {
4923: my ($group) = @_;
4924: if ($group eq '') { return ''; }
4925: my $extra_args = '&group='.$group;
4926: if (exists($env{'form.ref'})) {
4927: $extra_args .= '&ref='.$env{'form.ref'};
4928: }
4929: return $extra_args;
4930: }
4931:
4932: sub get_resource_title {
4933: my ($symb,$feedurl) = @_;
4934: my ($restitle,$plainurl);
4935: if (defined($symb)) {
4936: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4937: $restitle = &Apache::lonnet::gettitle($plain_symb);
4938: }
4939: if (defined($feedurl)) {
4940: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4941: }
4942: if (!defined($restitle)) {
4943: if (defined($feedurl)) {
4944: $restitle = &Apache::lonnet::gettitle($plainurl);
4945: }
4946: }
4947: if ($plainurl ne $feedurl) {
4948: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4949: if ($plain_filename eq $restitle) {
4950: $restitle = &mt('Untitled resource');
4951: }
4952: }
4953: if ($restitle eq '') {
4954: $restitle = &mt('Untitled resource');
4955: }
4956: return $restitle;
4957: }
4958:
4959: 1;
4960: __END__
4961:
4962:
4963: =pod
4964:
4965: =head1 NAME
4966:
4967: Apache::lonfeedback.pm
4968:
4969: =head1 SYNOPSIS
4970:
4971: Handles feedback from students to instructors and system administrators.
4972:
4973: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4974:
4975: Used by lonmsg.pm.
4976:
4977: This is part of the LearningOnline Network with CAPA project
4978: described at http://www.lon-capa.org.
4979:
4980: =head1 OVERVIEW
4981:
4982: None
4983:
4984: =head1 SUBROUTINES
4985:
4986: =over
4987:
4988: =item discussion_open()
4989:
4990: =item discussion_visible()
4991:
4992: =item discussion_vote_available()
4993:
4994: =item get_realsymb()
4995:
4996: =item list_discussion()
4997:
4998: =item can_see_hidden()
4999:
5000: =item discussion_link()
5001:
5002: =item send_feedback_link()
5003:
5004: =item send_message_link()
5005:
5006: =item action_links_bar()
5007:
5008: =item postingform_display()
5009:
5010: =item build_posting_display
5011:
5012: =item filter_regexp()
5013:
5014: =item get_post_contents()
5015:
5016: =item replicate_attachments()
5017:
5018: =item mail_screen()
5019:
5020: =item print_display_options()
5021:
5022: =item print_sortfilter_options()
5023:
5024: =item print_showposters()
5025:
5026: =item get_post_versions()
5027:
5028: =item get_post_attachments()
5029:
5030: =item fail_redirect()
5031:
5032: =item redirect_back()
5033:
5034: =item no_redirect_back()
5035:
5036: =item screen_header()
5037:
5038: =item resource_output()
5039:
5040: =item clear_out_html()
5041:
5042: =item assemble_email()
5043:
5044: =item feedback_available()
5045:
5046: =item send_msg()
5047:
5048: =item adddiscuss()
5049:
5050: =item get_discussion_info()
5051:
5052: =item show_preview()
5053:
5054: =item newline_to_br()
5055:
5056: =item tidy_html()
5057:
5058: =item generate_preview_button()
5059:
5060: =item modify_attachments()
5061:
5062: =item process_attachments()
5063:
5064: =item generate_attachments_button()
5065:
5066: =item extract_attachments()
5067:
5068: =item construct_attachmenturl()
5069:
5070: =item add_blog_checkbox()
5071:
5072: =item has_discussion()
5073:
5074: =item sort_filter_names()
5075:
5076: =item handler()
5077:
5078: =item blocked_reply_or_edit()
5079:
5080: =item wrap_symb()
5081:
5082: =item dewrapper()
5083:
5084: =item get_feedurl()
5085:
5086: =item get_feedurl_and_clean_symb()
5087:
5088: =item editing_allowed()
5089:
5090: =item check_group_priv()
5091:
5092: =item group_args()
5093:
5094: =item get_resource_title()
5095:
5096: =back
5097:
5098: =cut
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