1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.370.2.6 2022/01/19 01:35:58 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: if (not &discussion_visible($status)) {
122: if ($mode ne 'board') {
123: &Apache::lonenc::check_encrypt(\$ressymb);
124: return '<br /><div class="LC_feedback_link">'.&send_message_link($ressymb)."</div>";
125: }
126: }
127: if ($group ne '' && $mode eq 'board') {
128: if (&check_group_priv($group,'vgb') ne 'ok') {
129: return '';
130: }
131: }
132:
133: my ($blocked,$blocktext) =
134: &Apache::loncommon::blocking_status('boards');
135: if ($blocked) {
136: $blocktext = '<br /><div class="LC_feedback_link"><span class="LC_feedback_link">'.$blocktext."</span>";
137: &Apache::lonenc::check_encrypt(\$ressymb);
138: if ($mode ne 'board') {
139: $blocktext.=&send_message_link($ressymb).'</div>';
140: }else{
141: $blocktext.="</div>";
142: }
143: return $blocktext;
144: }
145:
146: my @bgcols = ("LC_disc_old_item","LC_disc_new_item");
147: my $discussiononly=0;
148: if ($mode eq 'board') { $discussiononly=1; }
149: unless ($env{'request.course.id'}) { return ''; }
150: my $crs='/'.$env{'request.course.id'};
151: my $cid=$env{'request.course.id'};
152: if ($env{'request.course.sec'}) {
153: $crs.='_'.$env{'request.course.sec'};
154: }
155: $crs=~s/\_/\//g;
156: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
157: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
158: && ($ressymb=~/$LONCAPA::assess_re/));
159:
160: my %usernamesort = ();
161: my %namesort =();
162: my %subjectsort = ();
163:
164: # Get discussion display settings for this discussion
165: my $lastkey = $ressymb.'_lastread';
166: my $showkey = $ressymb.'_showonlyunread';
167: my $markkey = $ressymb.'_showonlyunmark',
168: my $visitkey = $ressymb.'_visit';
169: my $ondispkey = $ressymb.'_markondisp';
170: my $userpickkey = $ressymb.'_userpick';
171: my $toggkey = $ressymb.'_readtoggle';
172: my $readkey = $ressymb.'_read';
173: $ressymb=$encsymb;
174: my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
175: my %discinfo = ();
176: my $showonlyunread = 0;
177: my $showunmark = 0;
178: my $markondisp = 0;
179: my $prevread = 0;
180: my $previous = 0;
181: my $visit = 0;
182: my $newpostsflag = 0;
183: my @posters = split(/\&/,$dischash{$userpickkey});
184:
185: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
186: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','grouppick','totposters']);
187: my $sortposts = $env{'form.sortposts'};
188: my $statusfilter = $env{'form.statusfilter'};
189: my @sectionpick = split(/,/,$env{'form.sectionpick'});
190: my @grouppick = split(/,/,$env{'form.grouppick'});
191: my @rolefilter = split(/,/,$env{'form.rolefilter'});
192:
193: my $totposters = $env{'form.totposters'};
194: $previous = $env{'form.previous'};
195: if ($previous > 0) {
196: $prevread = $previous;
197: } elsif (defined($dischash{$lastkey})) {
198: unless ($dischash{$lastkey} eq '') {
199: $prevread = $dischash{$lastkey};
200: }
201: }
202:
203: my $cdom = $env{'course.'.$cid.'.domain'};
204: my $cnum = $env{'course.'.$cid.'.num'};
205: my $crstype = &Apache::loncommon::course_type();
206:
207: # Get information about students and non-students in course for filtering display of posts
208: my %roleshash = ();
209: my %roleinfo = ();
210: my ($classgroups,$studentgroups);
211: if ($env{'form.rolefilter'}) {
212: %roleshash = &Apache::lonnet::dump('nohist_userroles',$cdom,$cnum);
213: foreach my $rolekey (keys(%roleshash)) {
214: my ($role,$uname,$udom,$sec) = split(/:/,$rolekey);
215: if ($role =~ /^cr/) {
216: $role = 'cr';
217: }
218: my ($end,$start) = split(/:/,$roleshash{$rolekey});
219: my $now = time;
220: my $status = 'Active';
221: if (($now < $start) || ($end > 0 && $now > $end)) {
222: $status = 'Expired';
223: }
224: if ($uname && $udom) {
225: push(@{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status);
226: }
227: }
228: my ($classlist,$keylist) =
229: &Apache::loncoursedata::get_classlist($cdom,$cnum);
230: my $sec_index = &Apache::loncoursedata::CL_SECTION();
231: my $status_index = &Apache::loncoursedata::CL_STATUS();
232: while (my ($student,$data) = each %$classlist) {
233: my ($section,$status) = ($data->[$sec_index],
234: $data->[$status_index]);
235: push(@{$roleinfo{$student}}, 'st:'.$section.':'.$status);
236: }
237: ($classgroups,$studentgroups) =
238: &Apache::loncoursedata::get_group_memberships($classlist,$keylist,
239: $cdom,$cnum);
240: }
241:
242: # Get discussion display default settings for user
243: if ($env{'environment.discdisplay'} eq 'unread') {
244: $showonlyunread = 1;
245: }
246: if ($env{'environment.discmarkread'} eq 'ondisp') {
247: $markondisp = 1;
248: }
249:
250: # Override user's default if user specified display setting for this discussion
251: if (defined($dischash{$ondispkey})) {
252: unless ($dischash{$ondispkey} eq '') {
253: $markondisp = $dischash{$ondispkey};
254: }
255: }
256: if ($markondisp) {
257: $discinfo{$lastkey} = time;
258: }
259:
260: if (defined($dischash{$showkey})) {
261: unless ($dischash{$showkey} eq '') {
262: $showonlyunread = $dischash{$showkey};
263: }
264: }
265:
266: if (defined($dischash{$markkey})) {
267: unless ($dischash{$markkey} eq '') {
268: $showunmark = $dischash{$markkey};
269: }
270: }
271:
272: if (defined($dischash{$visitkey})) {
273: unless ($dischash{$visitkey} eq '') {
274: $visit = $dischash{$visitkey};
275: }
276: }
277: $visit ++;
278:
279: my $seeid;
280: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
281: $seeid = 1;
282: }
283: my $seehidden = &can_see_hidden($mode,$ressymb,undef,$group,$cdom,$cnum,$crs);
284:
285: # Is voting on discussions available
286: my $realsymb = &get_realsymb($ressymb);
287: my $canvote = &discussion_vote_available($status,$realsymb);
288:
289: my @discussionitems=();
290: my %shown = ();
291: my @posteridentity=();
292:
293: my $current=0;
294: my $visible=0;
295: my @depth=();
296: my @replies = ();
297: my %alldiscussion=();
298: my %imsitems=();
299: my %imsfiles=();
300: my %notshown = ();
301: my %newitem = ();
302: my $maxdepth=0;
303: my %anonhash=();
304: my $anoncnt=0;
305:
306: my $now = time;
307: $discinfo{$visitkey} = $visit;
308:
309: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
310: &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);
311:
312: my $discussion='';
313: my $manifestfile;
314: my $manifestok=0;
315: my $tempexport;
316: my $imsresources;
317: my $copyresult;
318:
319: my $function = &Apache::loncommon::get_users_function();
320: my %lt = &Apache::lonlocal::texthash(
321: 'cuse' => 'My settings for this discussion',
322: 'allposts' => 'All posts',
323: 'unread' => 'New posts only',
324: 'unmark' => 'Unread only',
325: 'ondisp' => 'Once displayed',
326: 'onmark' => 'Once marked not NEW',
327: 'toggoff' => 'Off',
328: 'toggon' => 'On',
329: 'disa' => 'Posts to be displayed',
330: 'npce' => 'Posts cease to be marked "NEW"',
331: 'epcb' => 'Each post can be toggled read/unread',
332: 'chgt' => 'Change',
333: 'disp' => 'Display',
334: 'nolo' => 'Not new',
335: 'togg' => 'Toggle read/unread',
336: 'aner' => 'An error occurred opening the manifest file.',
337: 'difo' => 'Discussion for',
338: 'aerr' => 'An error occurred opening the export file for posting',
339: 'discussions' => 'DISCUSSIONS'
340: );
341: my %js_lt = &Apache::lonlocal::texthash(
342: 'aysu' => 'Are you sure you want to delete this post?',
343: 'dpwn' => 'Deleted posts will no longer be visible to you and other students',
344: 'bwco' => 'but will continue to be visible to your instructor',
345: 'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
346: );
347: &js_escape(\%js_lt);
348:
349: my $currdisp = $lt{'allposts'};
350: my $currmark = $lt{'onmark'};
351: my $currtogg = $lt{'toggoff'};
352: my $dispchange = $lt{'unread'};
353: my $markchange = $lt{'ondisp'};
354: my $toggchange = $lt{'toggon'};
355: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
356: my $displinkA = 'onlyunread';
357: my $displinkB = 'onlyunmark';
358: my $marklink = 'markondisp';
359: my $togglink = 'toggon';
360:
361: if ($markondisp) {
362: $currmark = $lt{'ondisp'};
363: $markchange = $lt{'onmark'};
364: $marklink = 'markonread';
365: }
366:
367: if ($showonlyunread) {
368: $currdisp = $lt{'unread'};
369: $dispchange = $lt{'allposts'};
370: $displinkA = 'allposts';
371: }
372:
373: if ($showunmark) {
374: $currdisp = $lt{'unmark'};
375: $dispchange = $lt{'unmark'};
376: $displinkA='allposts';
377: $displinkB='onlyunread';
378: $showonlyunread = 0;
379: }
380:
381: if ($dischash{$toggkey}) {
382: $currtogg = $lt{'toggon'};
383: $toggchange = $lt{'toggoff'};
384: $togglink = 'toggoff';
385: }
386:
387: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
388:
389: if ($newpostsflag) {
390: $chglink .= '&previous='.$prevread;
391: }
392: $chglink.=&group_args($group);
393:
394: if ($visible) {
395: # Print the discusssion
396: if ($outputtarget eq 'tex') {
397: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
398: '\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
399: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
400: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
401: } elsif ($outputtarget eq 'export') {
402: # Create temporary directory if this is an export
403: my $now = time;
404: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
405: $tempexport = $$imsextras{'tempexport'};
406: if (!-e $tempexport) {
407: mkdir($tempexport,0700);
408: }
409: $tempexport .= '/'.$$imsextras{'count'};
410: if (!-e $tempexport) {
411: mkdir($tempexport,0700);
412: }
413: } else {
414: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
415: if (!-e $tempexport) {
416: mkdir($tempexport,0700);
417: }
418: $tempexport .= '/'.$now;
419: if (!-e $tempexport) {
420: mkdir($tempexport,0700);
421: }
422: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
423: }
424: if (!-e $tempexport) {
425: mkdir($tempexport,0700);
426: }
427: # open manifest file
428: my $manifest = '/imsmanifest.xml';
429: my $manifestfilename = $tempexport.$manifest;
430: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
431: $manifestok=1;
432: print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
433: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
434: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
435: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
436: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
437: <organizations default="$ressymb">
438: <organization identifier="$ressymb">
439: <title>$lt{'difo'} $ressymb</title>\n|;
440: } else {
441: $discussion .= $lt{'aner'}.'<br />';
442: }
443: } else {
444: my $colspan=$maxdepth+1;
445: $discussion.= &Apache::lonhtmlcommon::scripttag(qq|
446: function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
447: var symbparm = symb+':::'+idx
448: var prevparm = ""
449: if (newflag == 1) {
450: prevparm = "&previous="+previous
451: }
452: if (caller == 'studentdelete') {
453: if (confirm("$js_lt{'aysu'}\\n$js_lt{'dpwn'},\\n$js_lt{'bwco'}")) {
454: document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
455: }
456: } else {
457: if (caller == 'seeiddelete') {
458: if (confirm("$js_lt{'aysu'}\\n$js_lt{'depo'}")) {
459: document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
460: }
461: }
462: }
463: }
464: |);
465: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
466: "\n".'<table width="100%" class="LC_discussion">';
467: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
468: $newpostsflag,$group,
469: $prevread,$markondisp,$seehidden);
470: my $escsymb=&escape($ressymb);
471: my $numhidden = keys(%notshown);
472: if ($numhidden > 0) {
473: my $colspan = $maxdepth+1;
474: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">';
475: my $href = '/adm/feedback?allposts=1&symb='.$escsymb;
476: if ($newpostsflag) {
477: $href .= '&previous='.$prevread;
478: }
479: $href .= &group_args($group);
480: if ($showunmark) {
481: $discussion .= &mt('[_1]Show all posts[_2] to display [quant,_3,post] previously marked read',
482: '<a href="'.$href.'">','</a>',$numhidden);
483: } else {
484: $discussion .= &mt('[_1]Show all posts[_2] to display [quant,_3,post] previously viewed',
485: '<a href="'.$href.'">','</a>',$numhidden);
486: }
487: $discussion .= '<br/></td></tr>';
488: }
489: }
490:
491: # Choose sort mechanism
492: my @showposts = ();
493: if ($sortposts eq 'descdate') {
494: @showposts = (sort { $b <=> $a } keys(%alldiscussion));
495: } elsif ($sortposts eq 'thread') {
496: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
497: } elsif ($sortposts eq 'subject') {
498: foreach my $key (sort(keys(%subjectsort))) {
499: push(@showposts, @{$subjectsort{$key}});
500: }
501: } elsif ($sortposts eq 'username') {
502: foreach my $domain (sort(keys(%usernamesort))) {
503: foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
504: push(@showposts, @{$usernamesort{$domain}{$key}});
505: }
506: }
507: } elsif ($sortposts eq 'lastfirst') {
508: foreach my $last (sort(keys(%namesort))) {
509: foreach my $key (sort(keys(%{$namesort{$last}}))) {
510: push(@showposts, @{$namesort{$last}{$key}});
511: }
512: }
513: } else {
514: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
515: }
516: my $currdepth = 0;
517: my $firstidx = $alldiscussion{$showposts[0]};
518: foreach my $post (@showposts) {
519: unless (($sortposts eq 'thread') ||
520: (($sortposts eq '') && (!$env{'environment.unthreadeddiscussion'})) ||
521: ($outputtarget eq 'export')) {
522: $alldiscussion{$post} = $post;
523: }
524: unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
525: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
526: $discussion.="\n<tr>";
527: }
528: my $thisdepth=$depth[$alldiscussion{$post}];
529: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
530: for (1..$thisdepth) {
531: $discussion.='<td> </td>';
532: }
533: }
534: my $colspan=$maxdepth-$thisdepth+1;
535: if ($outputtarget eq 'tex') {
536: #cleanup block
537: $discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
538: $discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
539: my $threadinsert='';
540: if ($thisdepth > 0) {
541: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
542: }
543: $discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
544: $discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
545:
546: $discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
547: $discussion.=$discussionitems[$alldiscussion{$post}];
548: } elsif ($outputtarget eq 'export') {
549: my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
550: if ($manifestok) {
551: if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
552: print $manifestfile ' </item>'."\n";
553: }
554: $currdepth = $depth[$alldiscussion{$post}];
555: print $manifestfile "\n".
556: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
557: $imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
558: '<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
559: $imsresources .= "\n".
560: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
561: '<file href="'.$postfilename.'">'."\n".
562: $imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
563: '</resource>';
564: }
565: my $postingfile;
566: my $postingfilename = $tempexport.'/'.$postfilename;
567: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
568: print $postingfile '<html><head><title>'.&mt('Discussion Post').'</title></head><body>'.
569: $imsitems{$alldiscussion{$post}}{'title'}.' '.
570: $imsitems{$alldiscussion{$post}}{'sender'}.
571: $imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
572: $imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
573: $imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
574: close($postingfile);
575: } else {
576: $discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
577: }
578: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
579: } else {
580: $discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
581: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
582: '</td></tr>';
583: }
584: }
585: }
586: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
587: my $colspan=$maxdepth+1;
588: $discussion .= <<END;
589: <tr>
590: <td colspan="$colspan">
591: <table width="100%">
592: <tr>
593: <td class="LC_disc_action_left">
594: <font size="-1"><b>$lt{'cuse'}</b>:
595: END
596: if ($newpostsflag) {
597: $discussion .=
598: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
599: if ($dischash{$toggkey}) {
600: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
601: }
602: } else {
603: if ($dischash{$toggkey}) {
604: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
605: } else {
606: $discussion .=
607: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
608: }
609: }
610: $discussion .= <<END;
611: <b><a href="$chglink">$lt{'chgt'}</a></b></font>
612: </td>
613: END
614: if ($sortposts) {
615: my %sort_types = ();
616: my %role_types = ();
617: my %status_types = ();
618: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
619:
620: $discussion .= '<td class="LC_disc_action_right"><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
621: if (defined($env{'form.totposters'})) {
622: $discussion .= &mt('Posts by').':';
623: if ($totposters > 0) {
624: foreach my $poster (@posters) {
625: $discussion .= ' '.$poster.',';
626: }
627: $discussion =~ s/,$//;
628: } else {
629: $discussion .= &mt('None selected');
630: }
631: } else {
632: my $filterchoice ='';
633: if (@sectionpick > 0) {
634: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
635: $filterchoice .= ' ';
636: }
637: if (@grouppick > 0) {
638: $filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
639: $filterchoice .= ' ';
640: }
641: if (@rolefilter > 0) {
642: $filterchoice .= '<i>'.&mt('roles').'</i>-';
643: foreach my $role (@rolefilter) {
644: $filterchoice .= ' '.$role_types{$role}.',';
645: }
646: $filterchoice =~ s/,$//;
647: $filterchoice .= '<br />'.(' ' x8);
648: }
649: if ($statusfilter) {
650: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
651: }
652: if ($filterchoice) {
653: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
654: }
655: }
656: $discussion .= '</font></td>';
657:
658: }
659: if ($dischash{$toggkey}) {
660: my $storebutton = &mt('Save read/unread changes');
661: $discussion.='<td align="right">'.
662: '<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
663: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
664: ' onclick="this.form.submit();" />'."\n".
665: '</td>';
666: }
667: $discussion .= (<<END);
668: </tr>
669: </table>
670: </td>
671: </tr>
672: END
673: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
674: $newpostsflag,$group,
675: $prevread,$markondisp,$seehidden);
676: $discussion .= "</table></form>\n";
677: }
678: if ($outputtarget eq 'export') {
679: if ($manifestok) {
680: while ($currdepth > 0) {
681: print $manifestfile " </item>\n";
682: $currdepth --;
683: }
684: print $manifestfile qq|
685: </organization>
686: </organizations>
687: <resources>
688: $imsresources
689: </resources>
690: </manifest>
691: |;
692: close($manifestfile);
693: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
694: $discussion = $copyresult;
695: } else {
696:
697: #Create zip file in prtspool
698:
699: if (($env{'user.name'} =~ /^$match_username$/)
700: && ($env{'user.domain'} =~ /^$match_domain$/)) {
701: my $now = time();
702: my $imszipfile = '/prtspool/'.
703: join('_',$env{'user.name'},$env{'user.domain'},$now).
704: '_'.rand(1000000000).'.zip';
705: my $zip = Archive::Zip->new();
706: $zip->addTree($tempexport);
707: my $imszip = '/home/httpd/'.$imszipfile;
708: if ($zip->writeToFileNamed($imszip) == AZ_OK) {
709: $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive[_2]',
710: '<a href="'.$imszipfile.'">','</a>').'<br />';
711: } else {
712: $discussion .= &mt('Failed to create zip file').'<br />';
713: }
714: if ($copyresult) {
715: $discussion .= '<span class="LC_error">'.
716: &mt('The following errors occurred during export:').
717: '</span><br />'.$copyresult;
718: }
719: } else {
720: $discussion .= '<p class="LC_error">'.
721: &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>';
722: }
723: }
724: } else {
725: $discussion .= '<p class="LC_error">'.
726: &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>';
727: }
728: return $discussion;
729: }
730: }
731: if ($discussiononly) {
732: my $now = time;
733: my $attachnum = 0;
734: my $currnewattach = [];
735: my $currdelold = [];
736: my $comment = '';
737: my $subject = '';
738: if ($env{'form.origpage'}) {
739: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
740: $subject = &unescape($env{'form.subject'});
741: $comment = &unescape($env{'form.comment'});
742: my @keepold = ();
743: &process_attachments($currnewattach,$currdelold,\@keepold);
744: if (@{$currnewattach} > 0) {
745: $attachnum += @{$currnewattach};
746: }
747: }
748: if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
749: if (($group ne '') && ($mode eq 'board')) {
750: if ((&check_group_priv($group,'pgd') eq 'ok') &&
751: ($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
752: $discussion .=
753: &postingform_display($mode,$ressymb,$now,$subject,
754: $comment,$outputtarget,$attachnum,
755: $currnewattach,$currdelold,
756: $group,$crstype);
757: }
758: } else {
759: if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
760: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
761:
762: $discussion.=
763: &postingform_display($mode,$ressymb,$now,$subject,
764: $comment,$outputtarget,$attachnum,
765: $currnewattach,$currdelold,'',$crstype);
766: } else {
767: $discussion.= '<span class="LC_feedback_link">'.
768: &mt('This discussion is closed.').'</span>';
769: }
770: }
771: }
772: if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
773: $discussion.= '<span class="LC_feedback_link">'.
774: &mt('This discussion is closed.').'</span>';
775: }
776: } elsif ($outputtarget ne 'tex') {
777: $discussion.='<div class="LC_feedback_link">';
778: if (&discussion_open($status) &&
779: &Apache::lonnet::allowed('pch',
780: $env{'request.course.id'}.
781: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
782: $discussion.= &send_feedback_link($ressymb);
783: if ($env{'request.role.adv'}) {
784: my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
785: my $canvote = &Apache::lonnet::EXT('resource.0.discussvote',$ressymb);
786: if (defined($close) && $close ne '' && $close < time) {
787: if ($canvote eq 'notended') {
788: $discussion .= ' '.&mt('(Posting and voting closed for [_1] roles)',
789: &Apache::lonnet::plaintext('st',$crstype));
790: } else {
791: $discussion .= ' '.&mt('(Closed for [_1] roles)',
792: &Apache::lonnet::plaintext('st',$crstype));
793: }
794: }
795: }
796: } else {
797: $discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
798: }
799: $discussion.= &send_message_link($ressymb).'</div>';
800: }
801: return $discussion;
802: }
803:
804: sub can_see_hidden {
805: my ($mode,$ressymb,$feedurl,$group,$cdom,$cnum,$crs) = @_;
806: my $seehidden;
807: if ($env{'request.course.id'}) {
808: unless ($cdom ne '' && $cnum ne '') {
809: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
810: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
811: }
812: if ($crs eq '') {
813: $crs = '/'.$env{'request.course.id'};
814: if ($env{'request.course.sec'}) {
815: $crs.='_'.$env{'request.course.sec'};
816: }
817: $crs=~s{_}{/}g;
818: }
819: if ($mode eq '') {
820: $mode='board';
821: if ($feedurl =~ /$LONCAPA::assess_re/) {
822: $mode='problem';
823: }
824: }
825: if (($group ne '') && ($mode eq 'board') &&
826: ($ressymb =~ m{^bulletin___\d+\Q___adm/wrapper/adm/$cdom/$cnum/\E\d+/bulletinboard$})) {
827: if (&check_group_priv($group,'dgp') eq 'ok') {
828: $seehidden = 1;
829: }
830: } else {
831: $seehidden=&Apache::lonnet::allowed('rin',$crs);
832: }
833: }
834: return $seehidden;
835: }
836:
837: sub discussion_link {
838: my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title)=@_;
839: my $link='/adm/feedback?inhibitmenu=yes&modal=yes&'.$cmd.'='.&escape($ressymb).':::'.$item;
840: if ($flag) { $link .= '&previous='.$prev; }
841: if ($adds) { $link .= $adds; }
842: my $width=600;
843: my $height=600;
844: if (($cmd eq 'hide') || ($cmd eq 'unhide') || ($cmd eq 'like') || ($cmd eq 'unlike')) {
845: $width=300;
846: $height=200;
847: }
848: return &Apache::loncommon::modal_link($link,$linktext,$width,$height,undef,undef,$title);
849: }
850:
851:
852: sub send_feedback_link {
853: my ($ressymb) = @_;
854: return '<span class="LC_feedback_link">'.
855: &discussion_link($ressymb,
856: '<img alt="" class="LC_noBorder" src="'.
857: &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
858: '" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
859: 'replydisc').
860: '</span>';
861: }
862:
863: sub send_message_link {
864: my ($ressymb) = @_;
865: my $output = '<span class="LC_message_link">'.
866: &discussion_link($ressymb,
867: '<img alt="" class="LC_noBorder" src="'.
868: &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
869: '" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
870: 'sendmessageonly').
871: '</span>';
872: return $output;
873: }
874:
875: sub action_links_bar {
876: my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp,
877: $seehidden) = @_;
878: my $discussion = '<tr><td colspan="'.$colspan.'">'.
879: '<table width="100%"><tr>'.
880: '<td class="LC_disc_action_left">';
881: my $escsymb=&escape($ressymb);
882: if ($visible) {
883: $discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
884: if ($newpostsflag) {
885: $discussion .= '&previous='.$prevread;
886: }
887: $discussion .= &group_args($group);
888: $discussion .='">'.&mt('Threaded View').'</a> '.
889: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
890: if ($newpostsflag) {
891: $discussion .= '&previous='.$prevread;
892: }
893: $discussion .= &group_args($group);
894: $discussion .='">'.&mt('Chronological View').'</a> ';
895:
896: my $otherviewurl='/adm/feedback?cmd=sortfilter&symb='.$escsymb.'&inhibitmenu=yes&modal=yes';
897: if ($newpostsflag) {
898: $otherviewurl .= '&previous='.$prevread;
899: }
900: $otherviewurl .= &group_args($group);
901: $discussion .= &Apache::loncommon::modal_link($otherviewurl,&mt('Other Views ...'),800,340);
902: $discussion .= '<br />';
903: }
904: $discussion .='<a href="/adm/feedback?export='.$escsymb;
905: if ($newpostsflag) {
906: $discussion .= '&previous='.$prevread;
907: }
908: $discussion .= &group_args($group);
909: $discussion .= '">'.&mt('Export').'</a>';
910: if ($seehidden) {
911: $discussion .= ' ';
912: $discussion .='<a href="/adm/feedback?undeleteall='.$escsymb;
913: if ($newpostsflag) {
914: $discussion .= '&previous='.$prevread;
915: }
916: $discussion .= &group_args($group);
917: $discussion .= '">'.&mt('Undelete all deleted entries').'</a>';
918: }
919: $discussion.='</td>';
920: if ($newpostsflag) {
921: if (!$markondisp) {
922: $discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
923: $discussion .= &group_args($group);
924: $discussion .= '">'.
925: &mt('My general preferences on what is marked as NEW').
926: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
927: $discussion .= &group_args($group);
928: $discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
929: } else {
930: $discussion .= '<td> </td>';
931: }
932: } else {
933: $discussion .= '<td> </td>';
934: }
935: $discussion .= '</tr></table></td></tr>';
936: return $discussion;
937: }
938:
939: sub postingform_display {
940: my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
941: $currnewattach,$currdelold,$group,$crstype) = @_;
942: my $newattachmsg;
943: my %lt = &Apache::lonlocal::texthash(
944: 'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
945: 'title' => 'Title',
946: 'podi' => 'Post Discussion',
947: 'poan' => 'Post Anonymous Discussion',
948: 'newa' => 'New attachments',
949: );
950: if ($crstype eq 'Community') {
951: $lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
952: }
953: my ($postingform,$textareaclass);
954: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
955: $postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
956: $textareaclass = 'class="LC_richDefaultOff"';
957: if ($env{'request.course.id'}) {
958: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
959: undef($textareaclass);
960: }
961: }
962: }
963: $postingform .= (<<ENDDISCUSS);
964: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
965: <input type="submit" name="anondiscuss" value="$lt{'poan'}" /> <input type="hidden" name="symb" value="$ressymb" />
966: <input type="hidden" name="sendit" value="true" />
967: <input type="hidden" name="timestamp" value="$now" />
968: <a name="newpost"></a>
969: <font size="1">$lt{'note'}</font><br />
970: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br />
971: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
972: ENDDISCUSS
973: if ($env{'form.origpage'}) {
974: $postingform .= '<input type="hidden" name="origpage" value="'.
975: $env{'form.origpage'}.'" />'."\n";
976: foreach my $att (@{$currnewattach}) {
977: $postingform .= '<input type="hidden" name="currnewattach" '.
978: 'value="'.$att.'" />'."\n";
979: }
980: }
981: if (exists($env{'form.ref'})) {
982: $postingform .= '<input type="hidden" name="ref" value="'.
983: $env{'form.ref'}.'" />';
984: }
985: if ($group ne '') {
986: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
987: }
988: my $blockblog = &Apache::loncommon::blocking_status('blogs');
989: if (!$blockblog) {
990: $postingform .= &add_blog_checkbox($crstype);
991: }
992: $postingform .= "</form>\n";
993: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
994: $now,$currnewattach,
995: $currdelold,'',$mode,
996: $blockblog);
997: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
998: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
999: if (@{$currnewattach} > 1) {
1000: $newattachmsg .= '<ol>';
1001: foreach my $item (@{$currnewattach}) {
1002: $item =~ m#.*/([^/]+)$#;
1003: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
1004: }
1005: $newattachmsg .= '</ol>'."\n";
1006: } else {
1007: $$currnewattach[0] =~ m#.*/([^/]+)$#;
1008: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
1009: }
1010: }
1011: $postingform .= $newattachmsg;
1012: $postingform .= &generate_preview_button();
1013: return $postingform;
1014: }
1015:
1016: sub build_posting_display {
1017: 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) = @_;
1018: my @original=();
1019: my @index=();
1020: my $skip_group_check = 0;
1021: my $symb=&Apache::lonenc::check_decrypt($ressymb);
1022: my $escsymb=&escape($ressymb);
1023: # These are the discussion contributions
1024: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1025: $env{'course.'.$env{'request.course.id'}.'.domain'},
1026: $env{'course.'.$env{'request.course.id'}.'.num'});
1027: my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
1028: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
1029: if ($seeid || $canvote) {
1030: # And these are the likes/unlikes
1031: %likes=&Apache::lonnet::dump('disclikes',
1032: $env{'course.'.$env{'request.course.id'}.'.domain'},
1033: $env{'course.'.$env{'request.course.id'}.'.num'},
1034: '^'.$symb.':');
1035: # Array with likes to figure out averages, etc.
1036: @theselikes=();
1037: # Hashes containing likes and unlikes for this user.
1038: %userlikes=();
1039: %userunlikes=();
1040: }
1041: # Is the user allowed to see the real name behind anonymous postings?
1042: my $see_anonymous =
1043: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
1044:
1045: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
1046: $skip_group_check = 1;
1047: }
1048: # Deletions and hiddens are just lists. Split them up into a hash for quicker lookup
1049: my (%deletions,%hiddens);
1050: if ($contrib{'deleted'}) {
1051: my $deleted = $contrib{'deleted'};
1052: $deleted =~ s/^\.//;
1053: $deleted =~ s/\.$//;
1054: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
1055: }
1056: if ($contrib{'hidden'}) {
1057: my $hidden = $contrib{'hidden'};
1058: $hidden =~ s/^\.//;
1059: $hidden =~ s/\.$//;
1060: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
1061: }
1062: # Versions if store/restore are used to actually store the messages.
1063: if ($contrib{'version'}) {
1064: my $oldest = $contrib{'1:timestamp'};
1065: if ($prevread eq '0') {
1066: $prevread = $oldest-1;
1067: }
1068: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
1069: if ($sortposts) {
1070: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
1071: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
1072: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
1073: }
1074: my %votestyle;
1075: if ($seeid || $canvote) {
1076: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
1077: for (my $id=1;$id<=$contrib{'version'};$id++) {
1078: my $idx=$id;
1079: next if ($contrib{$idx.':deleted'});
1080: next if ($contrib{$idx.':hidden'});
1081: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
1082: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1083: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1084: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1085: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1086: $userlikes{$idx} = 1;
1087: }
1088: }
1089: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1090: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1091: $userunlikes{$idx} = 1;
1092: }
1093: }
1094: }
1095: }
1096: }
1097: # Figure out average likes and standard deviation if there are enough
1098: # discussions to warrant that
1099: my $ave=0;
1100: my $stddev=10000;
1101: if ($#theselikes>1) {
1102: my $sum=0;
1103: my $num=$#theselikes+1;
1104: foreach my $thislike (@theselikes) {
1105: $sum+=$thislike;
1106: }
1107: $ave=$sum/$num;
1108: my $sumsq=0;
1109: foreach my $thislike (@theselikes) {
1110: $sumsq+=($thislike-$ave)*($thislike-$ave);
1111: }
1112: $stddev=sqrt($sumsq/$num);
1113: }
1114: # Now we know the average likes $ave and the standard deviation $stddev
1115: # Get the boundaries for markup
1116: $oneplus=$ave+$stddev;
1117: $twoplus=$ave+2.*$stddev;
1118: $oneminus=$ave-$stddev;
1119: $twominus=$ave-2.*$stddev;
1120: if ($#theselikes>1) {
1121: foreach my $class ('twoplus','oneplus','zero','oneminus','twominus') {
1122: my $fontstyle = $env{'course.'.$env{'request.course.id'}.'.discussion_post_fonts_'.$class};
1123: if ($fontstyle ne '') {
1124: my ($size,$weight,$style,$other) = split(/,/,$fontstyle);
1125: if ($size ne '') {
1126: $votestyle{$class} .= 'font-size: '.$size.';';
1127: }
1128: if ($weight ne '') {
1129: $votestyle{$class} .= 'font-weight: '.$weight.';';
1130: }
1131: if ($style ne '') {
1132: $votestyle{$class} .= 'font-style: '.$style.';';
1133: }
1134: if ($other ne '') {
1135: $votestyle{$class} .= $other;
1136: }
1137: if ($votestyle{$class} ne '') {
1138: $votestyle{$class} = 'style="'.$votestyle{$class}.'"';
1139: }
1140: }
1141: }
1142: }
1143: }
1144: #
1145: # This is now the real loop. Go through all entries, pick up what we need
1146: #
1147: for (my $id=1;$id<=$contrib{'version'};$id++) {
1148: my $idx=$id;
1149: next if ($contrib{$idx.':deleted'});
1150: next if ($contrib{$idx.':hidden'});
1151: # 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
1152: # previous edits, but it counts as one entry
1153: my $posttime = $contrib{$idx.':timestamp'};
1154: if ($prevread <= $posttime) {
1155: $$newpostsflag = 1;
1156: }
1157: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1158: my $origindex='0.';
1159: my $numoldver=0;
1160: if ($contrib{$idx.':replyto'}) {
1161: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1162: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1163: # this is a follow-up message
1164: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1165: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1166: $origindex=$index[$contrib{$idx.':replyto'}];
1167: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1168: } else {
1169: $original[$idx]=0;
1170: $$depth[$idx]=0;
1171: }
1172: } else {
1173: # this is an original message
1174: $original[$idx]=0;
1175: $$depth[$idx]=0;
1176: }
1177: if ($$replies[$$depth[$idx]]) {
1178: $$replies[$$depth[$idx]]++;
1179: } else {
1180: $$replies[$$depth[$idx]]=1;
1181: }
1182: unless ((($hiddens{$idx}) && (!$seehidden)) || ($deletions{$idx})) {
1183: $$visible++;
1184: if ($contrib{$idx.':history'}) {
1185: if ($contrib{$idx.':history'} =~ /:/) {
1186: my @oldversions = split(/:/,$contrib{$idx.':history'});
1187: $numoldver = @oldversions;
1188: } else {
1189: $numoldver = 1;
1190: }
1191: }
1192: $$current = $numoldver;
1193: my %messages = ();
1194: my %subjects = ();
1195: my %attachtxt = ();
1196: my %allattachments = ();
1197: my ($screenname,$plainname,$showaboutme);
1198: my $sender = &mt('Anonymous');
1199: # Anonymous users getting number within a discussion
1200: # Since idx is in static order, this should give the same sequence every time.
1201: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1202: unless ($$anonhash{$key}) {
1203: $anoncnt++;
1204: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1205: }
1206: my ($message,$subject,$vgrlink,$ctlink);
1207: &get_post_contents(\%contrib,$idx,$seeid,$seehidden,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1208:
1209:
1210: # Set up for sorting by subject
1211: unless ($outputtarget eq 'export') {
1212: $message=$messages{$numoldver};
1213: $message.=$attachtxt{$numoldver};
1214: $subject=$subjects{$numoldver};
1215: if ($message) {
1216: if ($hiddens{$idx}) {
1217: $message='<font color="#888888">'.$message.'</font>';
1218: if ($studenthidden) {
1219: $message .='<br /><br />Deleted by poster (student).';
1220: }
1221: }
1222:
1223: if ($subject eq '') {
1224: if (defined($$subjectsort{'__No subject'})) {
1225: push(@{$$subjectsort{'__No subject'}}, $idx);
1226: } else {
1227: @{$$subjectsort{'__No subject'}} = ("$idx");
1228: }
1229: } else {
1230: if (defined($$subjectsort{$subject})) {
1231: push(@{$$subjectsort{$subject}}, $idx);
1232: } else {
1233: @{$$subjectsort{$subject}} = ("$idx");
1234: }
1235: }
1236: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1237: if ($showaboutme) {
1238: $sender = &Apache::loncommon::aboutmewrapper(
1239: $plainname,
1240: $contrib{$idx.':sendername'},
1241: $contrib{$idx.':senderdomain'});
1242: } else {
1243: $sender = $plainname;
1244: }
1245: if ($see_anonymous) {
1246: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1247: $contrib{$idx.':senderdomain'}.')';
1248: }
1249: $sender = '<b>'.$sender.'</b>';
1250: if ($contrib{$idx.':anonymous'}) {
1251: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1252: $screenname;
1253: }
1254: if ($see_anonymous) {
1255: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1256: }
1257: # Set up for sorting by domain, then username
1258: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1259: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1260: }
1261: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1262: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1263: } else {
1264: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1265: }
1266: # Set up for sorting by last name, then first name
1267: my %names = &Apache::lonnet::get('environment',
1268: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
1269: ,$contrib{$idx.':sendername'});
1270: my $lastname = $names{'lastname'};
1271: my $firstname = $names{'firstname'};
1272: if ($lastname eq '') {
1273: $lastname = '_';
1274: }
1275: if ($firstname eq '') {
1276: $firstname = '_';
1277: }
1278: unless (defined($$namesort{$lastname})) {
1279: %{$$namesort{$lastname}} = ();
1280: }
1281: if (defined($$namesort{$lastname}{$firstname})) {
1282: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1283: } else {
1284: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1285: }
1286: if ($outputtarget ne 'tex') {
1287: # Add karma stars
1288: my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
1289: for (my $i=1;$i<=$karma;$i++) {
1290: $sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
1291: }
1292: # Can people edit this?
1293: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1294: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1295: $sender.=' '.
1296: &discussion_link($ressymb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1297: unless ($seehidden) {
1298: my $grpargs = &group_args($group);
1299: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1300: $sender .= '">'.&mt('Delete').'</a>';
1301: }
1302: }
1303: }
1304: if ($seehidden) {
1305: if ($hiddens{$idx}) {
1306: unless ($studenthidden) {
1307: $sender.=' '.
1308: &discussion_link($ressymb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
1309: }
1310: } else {
1311: $sender.=' '.
1312: &discussion_link($ressymb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
1313: }
1314: my $grpargs = &group_args($group);
1315: $sender.=
1316: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1317: $sender .= &mt('Delete').'</a>';
1318: }
1319: }
1320: } else {
1321: if ($screenname) {
1322: $sender='<i>'.$screenname.'</i>';
1323: } else {
1324: $sender='<i>'.$$anonhash{$key}.'</i>';
1325: }
1326: $sender = '<b>'.$sender.'</b>';
1327: # Set up for sorting by domain, then username for anonymous
1328: unless (defined($$usernamesort{'__anon'})) {
1329: %{$$usernamesort{'__anon'}} = ();
1330: }
1331: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1332: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1333: } else {
1334: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1335: }
1336: # Set up for sorting by last name, then first name for anonymous
1337: unless (defined($$namesort{'__anon'})) {
1338: %{$$namesort{'__anon'}} = ();
1339: }
1340: if (defined($$namesort{'__anon'}{'__anon'})) {
1341: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1342: } else {
1343: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1344: }
1345: }
1346: if ($outputtarget ne 'tex') {
1347: if (&discussion_open($status)) {
1348: if (($group ne '') &&
1349: (&check_group_priv($group,'pgd') eq 'ok')) {
1350: $sender.=' '.
1351: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1352: } elsif (&Apache::lonnet::allowed('pch',
1353: $env{'request.course.id'}.
1354: ($env{'request.course.sec'}?'/'.
1355: $env{'request.course.sec'}:''))) {
1356: $sender.=' '.
1357: &discussion_link($ressymb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
1358: }
1359: }
1360: if ($viewgrades) {
1361: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1362: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1363: }
1364: if ($$dischash{$readkey}=~/\.$idx\./) {
1365: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1366: } else {
1367: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1368: }
1369: }
1370: }
1371: #figure out at what position this needs to print
1372: }
1373: if ($outputtarget eq 'export' || $message) {
1374: my $thisindex=$idx;
1375: if ( ((!$env{'environment.unthreadeddiscussion'}) && ($sortposts eq '')) ||
1376: ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1377: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1378: }
1379: $$alldiscussion{$thisindex}=$idx;
1380: $$shown{$idx} = 0;
1381: $index[$idx]=$thisindex;
1382: }
1383: if ($outputtarget eq 'export') {
1384: %{$$imsitems{$idx}} = ();
1385: $$imsitems{$idx}{'isvisible'}='true';
1386: if ($hiddens{$idx}) {
1387: $$imsitems{$idx}{'isvisible'}='false';
1388: }
1389: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1390: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1391: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1392: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1393: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1394: $contrib{$idx.':sendername'}.':'.
1395: $contrib{$idx.':senderdomain'}.')';
1396: $$imsitems{$idx}{'isanonymous'}='false';
1397: if ($contrib{$idx.':anonymous'}) {
1398: $$imsitems{$idx}{'isanonymous'}='true';
1399: }
1400: $$imsitems{$idx}{'currversion'}=$numoldver;
1401: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1402: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1403: $$shown{$idx} = 1;
1404: }
1405: } else {
1406: if ($message) {
1407: my $spansize = 2;
1408: my ($uname,$udom);
1409: if ($showonlyunread && $prevread > $posttime) {
1410: $$notshown{$idx} = 1;
1411: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1412: $$notshown{$idx} = 1;
1413: } else {
1414: # apply filters
1415: $uname = $contrib{$idx.':sendername'};
1416: $udom = $contrib{$idx.':senderdomain'};
1417: my $poster = $uname.':'.$udom;
1418: if ($env{'form.totposters'} ne '') {
1419: if ($totposters == 0) {
1420: $$shown{$idx} = 0;
1421: } elsif ($totposters > 0) {
1422: if (grep/^$poster$/,@{$posters}) {
1423: $$shown{$idx} = 1;
1424: }
1425: }
1426: } elsif ($sortposts) {
1427: if ($skiptest) {
1428: $$shown{$idx} = 1;
1429: } else {
1430: foreach my $role (@{$$roleinfo{$poster}}) {
1431: if ($role =~ /^cc:/) {
1432: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1433: if ($role =~ /$cc_regexp/) {
1434: $$shown{$idx} = 1;
1435: last;
1436: }
1437: } elsif ($role =~ /^$rolematch$/) {
1438: $$shown{$idx} = 1;
1439: last;
1440: }
1441: }
1442: }
1443: if ($$shown{$idx} && !$skip_group_check) {
1444: my $showflag = 0;
1445: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1446: foreach my $grp (@{$grouppick}) {
1447: if (grep/^\Q$grp\E$/,
1448: keys(%{$$classgroups{$poster}{active}})) {
1449: $showflag = 1;
1450: last;
1451: }
1452: }
1453: }
1454: if ($showflag) {
1455: $$shown{$idx} = 1;
1456: } else {
1457: $$shown{$idx} = 0;
1458: }
1459: }
1460: } else {
1461: $$shown{$idx} = 1;
1462: }
1463: }
1464: unless ($$notshown{$idx} == 1) {
1465: if ($prevread > 0 && $prevread <= $posttime) {
1466: $$newitem{$idx} = 1;
1467: $$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
1468: } else {
1469: $$newitem{$idx} = 0;
1470: }
1471: $$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
1472: $sender.' '.$vgrlink.' ('.
1473: &Apache::lonlocal::locallocaltime($posttime).')';
1474: if ($$dischash{$toggkey}) {
1475: $$discussionitems[$idx].=' '.$ctlink;
1476: }
1477: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1478: my $likestyle;
1479: if ($seeid || $canvote) {
1480: # Figure out size based on likes
1481: my $class = 'zero';
1482: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1483: if ($thislikes>$twoplus) {
1484: $class = 'twoplus';
1485: } elsif ($thislikes>$oneplus) {
1486: $class = 'oneplus';
1487: }
1488: if ($thislikes<$twominus) {
1489: $class = 'twominus';
1490: } elsif ($thislikes<$oneminus) {
1491: $class = 'oneminus';
1492: }
1493: $likestyle = $votestyle{$class};
1494: }
1495: # Actually glue in the message itself
1496: $$discussionitems[$idx].= '<br /><blockquote>'.
1497: "<div $likestyle>".
1498: $message.
1499: '</div></blockquote>';
1500: if ($canvote) {
1501: my $ownpost;
1502: if (($uname eq $env{'user.name'}) &&
1503: ($udom eq $env{'user.domain'})) {
1504: $ownpost = 1;
1505: }
1506: # Put in the like and unlike buttons
1507: if ($ownpost || (($hiddens{$idx}) && ($seehidden))) {
1508: my $novote;
1509: if ($ownpost) {
1510: $novote = &mt('No voting for your own posts.');
1511: } else {
1512: $novote = &mt('No voting for hidden posts.');
1513: }
1514: &html_escape(\$novote);
1515: $$discussionitems[$idx].=
1516: '<a href="javascript:alert('."'$novote'".');" style="text-decoration: none;">'.
1517: '<img border="0" src="/res/adm/pages/thumbsup_novote.png" alt="'.$novote.'" /> '.
1518: '<img border="0" src="/res/adm/pages/thumbsdown_novote.png" alt="'.$novote.'" /></a>';
1519:
1520: } else {
1521: if ($userlikes{$idx}) {
1522: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1523: } else {
1524: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1525: }
1526: if ($userunlikes{$idx}) {
1527: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1528: } else {
1529: $$discussionitems[$idx].=' '.&discussion_link($ressymb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1530: }
1531: }
1532: }
1533: if ($seeid || $canvote) {
1534: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1535: if ($thislikes>0) {
1536: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1537: } elsif ($thislikes<0) {
1538: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1539: }
1540: }
1541: # If there is any history to this post, inform the reader
1542: if ($contrib{$idx.':history'}) {
1543: my @postversions = ();
1544: $$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
1545: if ($seehidden) {
1546: $$discussionitems[$idx] .= ' '.
1547: &discussion_link($ressymb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
1548: }
1549: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1550: if ($contrib{$idx.':history'} =~ m/:/) {
1551: @postversions = split(/:/,$contrib{$idx.':history'});
1552: } else {
1553: @postversions = ("$contrib{$idx.':history'}");
1554: }
1555: for (my $i=0; $i<@postversions; $i++) {
1556: my $version = $i+1;
1557: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1558: }
1559: }
1560: # end of unless ($$notshown ...)
1561: }
1562: # end of if ($message) ...
1563: }
1564: # end of the else-branch of target being export
1565: }
1566: # end of unless hidden or deleted
1567: }
1568: # end of the loop over all discussion entries
1569: }
1570: # end of "if there actually are any discussions
1571: }
1572: # end of subroutine "build_posting_display"
1573: }
1574:
1575: sub filter_regexp {
1576: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1577: my ($roleregexp,$secregexp,$statusregexp);
1578: my $skiptest = 1;
1579: if (@{$rolefilter} > 0) {
1580: my @okrolefilter = ();
1581: foreach my $role (@{$rolefilter}) {
1582: unless ($role eq '') {
1583: push(@okrolefilter, $role);
1584: }
1585: }
1586: if (@okrolefilter > 0) {
1587: if (grep/^all$/,@okrolefilter) {
1588: $roleregexp='[^:]+';
1589: } else {
1590: if (@okrolefilter == 1) {
1591: $roleregexp=$okrolefilter[0];
1592: } else {
1593: $roleregexp='('.join('|',@okrolefilter).')';
1594: }
1595: $skiptest = 0;
1596: }
1597: }
1598: }
1599: if (@{$sectionpick} > 0) {
1600: my @oksectionpick = ();
1601: foreach my $sec (@{$sectionpick}) {
1602: unless ($sec eq '') {
1603: push(@oksectionpick, $sec);
1604: }
1605: }
1606: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1607: if (@oksectionpick == 1) {
1608: $secregexp = $oksectionpick[0];
1609: } else {
1610: $secregexp .= '('.join('|',@oksectionpick).')';
1611: }
1612: $skiptest = 0;
1613: } else {
1614: $secregexp .= '[^:]*';
1615: }
1616: }
1617:
1618: if (defined($statusfilter) && $statusfilter ne '') {
1619: if ($statusfilter eq 'all') {
1620: $statusregexp = '[^:]+';
1621: } else {
1622: $statusregexp = $statusfilter;
1623: $skiptest = 0;
1624: }
1625: }
1626: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1627: }
1628:
1629:
1630: sub get_post_contents {
1631: my ($contrib,$idx,$seeid,$seehidden,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1632: my $discussion = '';
1633: my $start=$numver;
1634: my $end=$numver + 1;
1635: %{$$imsfiles{$idx}}=();
1636: if ($type eq 'allversions') {
1637: unless($seehidden) {
1638: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1639: return $discussion;
1640: }
1641: }
1642: # $$screenname=&Apache::loncommon::screenname(
1643: # $$contrib{$idx.':sendername'},
1644: # $$contrib{$idx.':senderdomain'});
1645: $$plainname=&Apache::loncommon::nickname(
1646: $$contrib{$idx.':sendername'},
1647: $$contrib{$idx.':senderdomain'});
1648: $$screenname=$$contrib{$idx.':screenname'};
1649: $$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
1650: $$contrib{$idx.':senderdomain'},
1651: 'aboutme');
1652: my $sender = $$plainname;
1653: if ($$showaboutme) {
1654: $sender = &Apache::loncommon::aboutmewrapper(
1655: $$plainname,
1656: $$contrib{$idx.':sendername'},
1657: $$contrib{$idx.':senderdomain'});
1658: }
1659: if ($seeid) {
1660: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1661: $$contrib{$idx.':senderdomain'}.')';
1662: }
1663: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1664: my @postversions = ();
1665: if ($type eq 'allversions' || $type eq 'export') {
1666: $start = 0;
1667: if ($$contrib{$idx.':history'}) {
1668: @postversions = split(/:/,$$contrib{$idx.':history'});
1669: }
1670: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1671: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1672: push(@postversions,$$contrib{$idx.':timestamp'});
1673: $end = @postversions;
1674: } else {
1675: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1676: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1677: }
1678:
1679: if ($$contrib{$idx.':anonymous'}) {
1680: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1681: }
1682: if ($type eq 'allversions') {
1683: $discussion=('<b>'.$sender.'</b><br /><ul>');
1684: }
1685: for (my $i=$start; $i<$end; $i++) {
1686: my ($timesent,$attachmsg);
1687: my %currattach = ();
1688: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1689: unless (&contains_block_html($messages->{$i})) {
1690: &newline_to_br(\$messages->{$i});
1691: }
1692: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1693: $$subjects{$i}=~s/\n/\<br \/\>/g;
1694: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1695: if ($attachmenturls) {
1696: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1697: }
1698: if ($type eq 'export') {
1699: $$imsfiles{$idx}{$i} = '';
1700: if ($attachmsg) {
1701: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1702: foreach my $key (sort(keys(%currattach))) {
1703: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1704: my $fname = $1.$3.'/'.$4;
1705: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1706: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1707: }
1708: }
1709: }
1710: } else {
1711: if ($attachmsg) {
1712: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1713: } else {
1714: $$attachtxt{$i} = '';
1715: }
1716: }
1717: if ($type eq 'allversions') {
1718: $discussion.= <<"END";
1719: <li><b>$$subjects{$i}</b>, $timesent<br />
1720: $$messages{$i}<br />
1721: $$attachtxt{$i}</li>
1722: END
1723: }
1724: }
1725: if ($type eq 'allversions') {
1726: $discussion.='</ul>';
1727: return $discussion;
1728: } else {
1729: return;
1730: }
1731: }
1732:
1733: sub replicate_attachments {
1734: my ($attachrefs,$tempexport) = @_;
1735: my $response;
1736: foreach my $id (keys(%{$attachrefs})) {
1737: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1738: my $path = $tempexport;
1739: my $tail = $1.'/'.$2.$4;
1740: my @extras = split(/\//,$tail);
1741: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1742: if (!-e $destination) {
1743: my $i= 0;
1744: while ($i<@extras) {
1745: $path .= '/'.$extras[$i];
1746: if (!-e $path) {
1747: mkdir($path,0700);
1748: }
1749: $i ++;
1750: }
1751: my ($content,$rtncode);
1752: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1753: if ($uploadreply eq 'ok') {
1754: my $attachcopy;
1755: if ($attachcopy = Apache::File->new('>'.$destination)) {
1756: print $attachcopy $content;
1757: close($attachcopy);
1758: } else {
1759: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1760: }
1761: } else {
1762: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1763: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1764: }
1765: }
1766: }
1767: }
1768: return $response;
1769: }
1770:
1771: sub mail_screen {
1772: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1773: if (exists($env{'form.origpage'})) {
1774: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1775: }
1776:
1777: my %lt = &Apache::lonlocal::texthash(
1778: 'myqu' => 'Question/comment/feedback:',
1779: 'reta' => 'Retained attachments',
1780: 'atta' => 'Attachment',
1781: );
1782: if ($env{'form.editdisc'} || $env{'form.replydisc'}){
1783: $lt{'myqu'} = &mt('Post Discussion');
1784: }
1785: my $restitle = &get_resource_title($caller_symb,$feedurl);
1786: my $quote='';
1787: my $subject = '';
1788: my $comment = '';
1789: my $prevtag = '';
1790: my $parentmsg = '';
1791: my ($symb,$idx,$attachmenturls);
1792: my $numoldver = 0;
1793: my $attachmsg = '';
1794: my $newattachmsg = '';
1795: my @currnewattach = ();
1796: my @currdelold = ();
1797: my @keepold = ();
1798: my %attachments = ();
1799: my %currattach = ();
1800: my $attachnum = 0;
1801: my $anonchk = (<<END);
1802: function anonchk() {
1803: for (var i=0; i < document.mailform.discuss.length; i++) {
1804: if (document.mailform.discuss[i].checked) {
1805: document.attachment.discuss.value =
1806: document.mailform.discuss[i].value;
1807: }
1808: }
1809: if (document.mailform.blog.checked) {
1810: document.attachment.blog.value = 1;
1811: }
1812: return
1813: }
1814: END
1815: my $anonscript;
1816: if (exists($env{'form.origpage'})) {
1817: $anonscript = (<<END);
1818: function setposttype() {
1819: var disc = "$env{'form.discuss'}";
1820: for (var i=0; i < document.mailform.discuss.length; i++) {
1821: if (disc == document.mailform.discuss[i].value) {
1822: document.mailform.discuss[i].checked = 1;
1823: }
1824: }
1825: var blog = "$env{'form.blog'}";
1826: if (blog == 1) {
1827: document.mailform.blog.checked=1;
1828: }
1829: return
1830: }
1831: END
1832: } else {
1833: $anonscript = (<<END);
1834: function setposttype() {
1835: return
1836: }
1837: END
1838: }
1839: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1840: if ($env{'form.replydisc'}) {
1841: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1842: } else {
1843: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1844: }
1845: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1846: $env{'course.'.$env{'request.course.id'}.'.domain'},
1847: $env{'course.'.$env{'request.course.id'}.'.num'});
1848: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1849: my $numoldver = 0;
1850: if ($contrib{$idx.':history'}) {
1851: if ($contrib{$idx.':history'} =~ /:/) {
1852: my @oldversions = split(/:/,$contrib{$idx.':history'});
1853: $numoldver = @oldversions;
1854: } else {
1855: $numoldver = 1;
1856: }
1857: }
1858: if ($idx > 0) {
1859: my (%msgversions,%subversions,$htmldecode);
1860: $htmldecode = 0;
1861: if ($env{'form.replydisc'}) {
1862: $htmldecode = 1;
1863: }
1864: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1865: &get_post_versions(\%subversions,$contrib{$idx.':subject'},$htmldecode,
1866: $numoldver);
1867: $subject = $subversions{$numoldver};
1868: if ($env{'form.replydisc'}) {
1869: $quote = $msgversions{$numoldver};
1870: $subject = &HTML::Entities::encode(&mt('Re: ').$subject,'<>&"');
1871: } else {
1872: $comment = $msgversions{$numoldver};
1873: }
1874: }
1875: if ($env{'form.editdisc'}) {
1876: $attachmenturls = $contrib{$idx.':attachmenturl'};
1877: if (defined($contrib{$idx.':replyto'})) {
1878: $parentmsg = $contrib{$idx.':replyto'};
1879: }
1880: unless (exists($env{'form.origpage'})) {
1881: my $anonflag = 'nonanon';
1882: if ($contrib{$idx.':anonymous'}) {
1883: $anonflag = 'anon';
1884: }
1885: $anonscript = (<<END);
1886: function setposttype () {
1887: var currtype = "$anonflag";
1888: for (var i=0; i<document.mailform.discuss.length; i++) {
1889: if (document.mailform.elements.discuss[i].value == currtype ) {
1890: document.mailform.elements.discuss[i].checked=1;
1891: }
1892: }
1893: return
1894: }
1895: END
1896: }
1897: }
1898: }
1899: if ($env{'form.previous'}) {
1900: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1901: }
1902: }
1903:
1904: if ($env{'form.origpage'}) {
1905: $subject = &unescape($env{'form.subject'});
1906: $comment = &unescape($env{'form.comment'});
1907: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1908: }
1909: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
1910: my $send=&mt('Send');
1911: my $alert = &mt('Please select a feedback type.');
1912: &js_escape(\$alert);
1913: my $js= <<END;
1914: <script type="text/javascript">
1915: //<!--
1916: function gosubmit() {
1917: var rec=0;
1918: if (typeof(document.mailform.elements.discuss)!="undefined") {
1919: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1920: if (document.mailform.elements.discuss.checked ) {
1921: rec=1;
1922: }
1923: } else {
1924: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1925: if (document.mailform.elements.discuss[i].checked ) {
1926: rec=1;
1927: }
1928: }
1929: }
1930: }
1931: if (typeof(document.mailform.elements.blog)!="undefined") {
1932: if (document.mailform.elements.blog.checked) {
1933: rec=1;
1934: }
1935: }
1936:
1937: if (rec) {
1938: if (typeof(document.mailform.onsubmit)=='function') {
1939: document.mailform.onsubmit();
1940: }
1941: document.mailform.submit();
1942: } else {
1943: alert('$alert');
1944: }
1945: }
1946: $anonchk
1947: $anonscript
1948: //-->
1949: </script>
1950: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
1951: END
1952:
1953: my ($textareaheader,$textareaclass);
1954: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1955: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
1956: $textareaclass = 'class="LC_richDefaultOff"';
1957: if ($env{'request.course.id'}) {
1958: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
1959: undef($textareaclass);
1960: }
1961: }
1962: }
1963:
1964: # Breadcrumbs
1965: my $brcrum = [{'href' => '',
1966: 'text' => 'Resource Feedback and Discussion'}];
1967:
1968: my %onload = ('onload' => 'window.focus();setposttype();');
1969: my %parms=('add_entries' => \%onload);
1970: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
1971: my $start_page=
1972: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
1973:
1974: if ($quote ne '') {
1975: $quote = &HTML::Entities::decode($quote);
1976: unless (&contains_block_html($quote)) {
1977: &newline_to_br(\$quote);
1978: }
1979: $quote=&Apache::lonhtmlcommon::start_pick_box().
1980: &Apache::lonhtmlcommon::row_title(&mt('Quote')).
1981: &Apache::lontexconvert::msgtexconverted($quote).
1982: &Apache::lonhtmlcommon::row_closure(1).
1983: &Apache::lonhtmlcommon::end_pick_box();
1984: }
1985: my $header='';
1986: unless ($env{'form.modal'}) {
1987: $header="<h2><tt>$restitle</tt></h2>";
1988: }
1989: $r->print(<<END);
1990: $start_page
1991: <h1>$lt{'myqu'}</h1>
1992: $header
1993: <form action="/adm/feedback" method="post" name="mailform"
1994: enctype="multipart/form-data">
1995: $prevtag
1996: <input type="hidden" name="postdata" value="$feedurl" />
1997: <input type="hidden" name="modal" value="$env{'form.modal'}" />
1998: END
1999: if ($env{'form.replydisc'}) {
2000: $r->print(<<END);
2001: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
2002: END
2003: } elsif ($env{'form.editdisc'}) {
2004: $r->print(<<END);
2005: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
2006: <input type="hidden" name="parentmsg" value="$parentmsg" />
2007: END
2008: }
2009: $r->print(<<END);
2010: $options
2011: <br />
2012: END
2013: $r->print(&Apache::lonhtmlcommon::start_pick_box());
2014: $r->print(<<END);
2015: $quote
2016: <p>
2017: $textareaheader
2018: </p>
2019: <p>
2020: $latexHelp
2021: </p>
2022: <p>
2023: END
2024:
2025:
2026: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
2027: $r->print('<input type="text" name="subject" size="30" value="'.
2028: $subject.'" /></p>');
2029: $r->print(&Apache::lonhtmlcommon::row_closure());
2030: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
2031: $r->print('<textarea name="comment" id="comment" cols="55" rows="10" '.
2032: $textareaclass.'>'.$comment.
2033: '</textarea>');
2034: $r->print(&Apache::lonhtmlcommon::row_closure(1));
2035: $r->print(&Apache::lonhtmlcommon::end_pick_box());
2036:
2037: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
2038: if ($env{'form.origpage'}) {
2039: foreach my $attach (@currnewattach) {
2040: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
2041: }
2042: foreach my $oldatt (@currdelold) {
2043: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
2044: }
2045: }
2046: if ($env{'form.editdisc'}) {
2047: if ($attachmenturls) {
2048: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
2049: $attachnum = scalar(keys(%currattach));
2050: foreach my $key (keys(%currattach)) {
2051: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
2052: }
2053: }
2054: }
2055: } else {
2056: $r->print(<<END);
2057: <p>
2058: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" class="LC_flUpload" />
2059: <input type="hidden" id="LC_free_space" value="131072" />
2060: </p>
2061: END
2062: }
2063: if (exists($env{'form.group'})) {
2064: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2065: }
2066: if (exists($env{'form.ref'})) {
2067: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2068: }
2069: $r->print(<<END);
2070: <input type="hidden" name="sendit" value="1" />
2071: <input type="button" value="$send" onclick='gosubmit();' />
2072: </form>
2073: END
2074: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
2075: my $now = time;
2076: my $ressymb = $symb;
2077: &Apache::lonenc::check_encrypt(\$ressymb);
2078: my $postidx = '';
2079: if ($env{'form.editdisc'}) {
2080: $postidx = $idx;
2081: }
2082: if (@currnewattach > 0) {
2083: $attachnum += @currnewattach;
2084: }
2085: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2086: if ($attachnum > 0) {
2087: if (@currnewattach > 0) {
2088: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
2089: if (@currnewattach > 1) {
2090: $newattachmsg .= '<ol>';
2091: foreach my $item (@currnewattach) {
2092: $item =~ m#.*/([^/]+)$#;
2093: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2094: }
2095: $newattachmsg .= '</ol>'."\n";
2096: } else {
2097: $currnewattach[0] =~ m#.*/([^/]+)$#;
2098: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2099: }
2100: }
2101: if ($attachmsg) {
2102: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2103: }
2104: if ($newattachmsg) {
2105: $r->print("$newattachmsg");
2106: }
2107: }
2108: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
2109: }
2110: $r->print(&generate_preview_button().
2111: &Apache::loncommon::end_page());
2112:
2113: }
2114:
2115: sub print_display_options {
2116: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2117: &Apache::loncommon::content_type($r,'text/html');
2118: $r->send_http_header;
2119:
2120: my $function = &Apache::loncommon::get_users_function();
2121: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2122: $env{'user.domain'});
2123:
2124: my %lt = &Apache::lonlocal::texthash(
2125: 'pref' => 'Display Preference',
2126: 'curr' => 'Current setting ',
2127: 'actn' => 'Action',
2128: 'deff' => 'Default for all discussions',
2129: 'prca' => 'Preferences can be set for this discussion that determine ....',
2130: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2131: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2132: 'wipa' => 'Whether individual posts can be marked as read/unread',
2133: 'allposts' => 'All posts',
2134: 'unread' => 'New posts only',
2135: 'unmark' => 'Posts not marked read',
2136: 'ondisp' => 'Once displayed',
2137: 'onmark' => 'Once marked not NEW',
2138: 'toggon' => 'Shown',
2139: 'toggoff' => 'Not shown',
2140: 'disa' => 'Posts displayed?',
2141: 'npmr' => 'New posts cease to be identified as "NEW"?',
2142: 'dotm' => 'Option to mark each post as read/unread?',
2143: 'chgt' => 'Change to ',
2144: 'mkdf' => 'Set to ',
2145: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2146: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2147: );
2148: my %js_lt = &Apache::lonlocal::texthash(
2149: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2150: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2151: );
2152: &js_escape(\%js_lt);
2153:
2154: my $dispchangeA = $lt{'unread'};
2155: my $dispchangeB = $lt{'unmark'};
2156: my $markchange = $lt{'ondisp'};
2157: my $toggchange = $lt{'toggon'};
2158: my $currdisp = $lt{'allposts'};
2159: my $currmark = $lt{'onmark'};
2160: my $discdisp = 'allposts';
2161: my $discmark = 'onmark';
2162: my $currtogg = $lt{'toggoff'};
2163: my $disctogg = 'toggoff';
2164:
2165: if ($dispchgA eq 'allposts') {
2166: $dispchangeA = $lt{'allposts'};
2167: $currdisp = $lt{'unread'};
2168: $discdisp = 'unread';
2169: }
2170:
2171: if ($markchg eq 'markonread') {
2172: $markchange = $lt{'onmark'};
2173: $currmark = $lt{'ondisp'};
2174: $discmark = 'ondisp';
2175: }
2176:
2177: if ($dispchgB eq 'onlyunread') {
2178: $dispchangeB = $lt{'unread'};
2179: $currdisp = $lt{'unmark'};
2180: $discdisp = 'unmark';
2181: }
2182: if ($toggchg eq 'toggoff') {
2183: $toggchange = $lt{'toggoff'};
2184: $currtogg = $lt{'toggon'};
2185: $disctogg = 'toggon';
2186: }
2187:
2188: my $js = <<END;
2189: <script type="text/javascript">
2190: function discdispChk(caller) {
2191: var disctogg = '$toggchg'
2192: if (caller == 0) {
2193: if (document.modifydisp.discdisp[0].checked == true) {
2194: if (document.modifydisp.discdisp[1].checked == true) {
2195: document.modifydisp.discdisp[1].checked = false
2196: }
2197: }
2198: }
2199: if (caller == 1) {
2200: if (document.modifydisp.discdisp[1].checked == true) {
2201: if (document.modifydisp.discdisp[0].checked == true) {
2202: document.modifydisp.discdisp[0].checked = false
2203: }
2204: if (disctogg == 'toggon') {
2205: document.modifydisp.disctogg.checked = true
2206: }
2207: if (disctogg == 'toggoff') {
2208: document.modifydisp.disctogg.checked = false
2209: }
2210: }
2211: }
2212: if (caller == 2) {
2213: var dispchgB = '$dispchgB'
2214: if (disctogg == 'toggoff') {
2215: if (document.modifydisp.disctogg.checked == true) {
2216: if (dispchgB == 'onlyunmark') {
2217: document.modifydisp.discdisp[1].checked = false
2218: }
2219: }
2220: }
2221: }
2222: }
2223:
2224: function setDisp() {
2225: var prev = "$previous"
2226: var chktotal = 0
2227: if (document.modifydisp.discdisp[0].checked == true) {
2228: document.modifydisp.$dispchgA.value = "$symb"
2229: chktotal ++
2230: }
2231: if (document.modifydisp.discdisp[1].checked == true) {
2232: document.modifydisp.$dispchgB.value = "$symb"
2233: chktotal ++
2234: }
2235: if (document.modifydisp.discmark.checked == true) {
2236: document.modifydisp.$markchg.value = "$symb"
2237: chktotal ++
2238: }
2239: if (document.modifydisp.disctogg.checked == true) {
2240: document.modifydisp.$toggchg.value = "$symb"
2241: chktotal ++
2242: }
2243: if (chktotal > 0) {
2244: document.modifydisp.submit()
2245: } else {
2246: if(confirm("$js_lt{'yhni'}. \\n$js_lt{'ywbr'}")) {
2247: if (prev > 0) {
2248: location.href = "$feedurl?previous=$previous"
2249: } else {
2250: location.href = "$feedurl"
2251: }
2252: }
2253: }
2254: }
2255: </script>
2256: END
2257:
2258:
2259: my $start_page =
2260: &Apache::loncommon::start_page('Discussion display options',$js);
2261: my $end_page =
2262: &Apache::loncommon::end_page();
2263: $r->print(<<END);
2264: $start_page
2265: <form name="modifydisp" method="post" action="/adm/feedback">
2266: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2267: <br />
2268: END
2269: $r->print(&Apache::loncommon::start_data_table());
2270: $r->print(<<END);
2271: <tr>
2272: <th>$lt{'pref'}</td>
2273: <th>$lt{'curr'}</td>
2274: <th>$lt{'actn'}?</td>
2275: </tr>
2276: END
2277: $r->print(&Apache::loncommon::start_data_table_row());
2278: $r->print(<<END);
2279: <td>$lt{'disa'}</td>
2280: <td>$lt{$discdisp}</td>
2281: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2282: <br />
2283: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2284: </td>
2285: END
2286: $r->print(&Apache::loncommon::end_data_table_row());
2287: $r->print(&Apache::loncommon::start_data_table_row());
2288: $r->print(<<END);
2289: <td>$lt{'npmr'}</td>
2290: <td>$lt{$discmark}</td>
2291: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2292: END
2293: $r->print(&Apache::loncommon::end_data_table_row());
2294: $r->print(&Apache::loncommon::start_data_table_row());
2295: $r->print(<<END);
2296: <td>$lt{'dotm'}</td>
2297: <td>$lt{$disctogg}</td>
2298: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2299: END
2300: my $save = &mt('Save');
2301: $r->print(&Apache::loncommon::end_data_table_row());
2302: $r->print(&Apache::loncommon::end_data_table());
2303: $r->print(<<END);
2304: <br />
2305: <br />
2306: <input type="hidden" name="symb" value="$symb" />
2307: <input type="hidden" name="previous" value="$previous" />
2308: <input type="hidden" name="$dispchgA" value="" />
2309: <input type="hidden" name="$dispchgB" value="" />
2310: <input type="hidden" name="$markchg" value="" />
2311: <input type="hidden" name="$toggchg" value="" />
2312: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2313: END
2314: if (exists($env{'form.group'})) {
2315: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2316: }
2317: if (exists($env{'form.ref'})) {
2318: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2319: }
2320: $r->print("
2321: <br />
2322: <br />
2323: </form>
2324: $end_page
2325: ");
2326: return;
2327: }
2328:
2329: sub print_sortfilter_options {
2330: my ($r,$symb,$previous,$feedurl) = @_;
2331:
2332: &Apache::loncommon::content_type($r,'text/html');
2333: $r->send_http_header;
2334:
2335: &Apache::lonenc::check_encrypt(\$symb);
2336: my @sections;
2337: my $section_sel = '';
2338: my $numvisible = 5;
2339: my @groups;
2340: my $group_sel = '';
2341: my $numgroupvis = 5;
2342: my %sectioncount = &Apache::loncommon::get_sections();
2343: my @courseroles = qw(st ad ep ta in);
2344: my $crstype = &Apache::loncommon::course_type();
2345: my $ccrole = 'cc';
2346: if ($crstype eq 'Community') {
2347: $ccrole = 'co';
2348: }
2349: push(@courseroles,$ccrole);
2350:
2351: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2352: @sections = ('all',$env{'request.course.sec'});
2353: $numvisible = 2;
2354: } else {
2355: @sections = sort {$a cmp $b} keys(%sectioncount);
2356: if (scalar(@sections) < 4) {
2357: $numvisible = scalar(@sections) + 1;
2358: }
2359: unshift(@sections,'all'); # Put 'all' at the front of the list
2360:
2361: }
2362: foreach my $sec (@sections) {
2363: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2364: }
2365:
2366: if (&check_group_priv() eq 'ok') {
2367: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2368: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2369: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2370: @groups = sort {$a cmp $b} keys(%curr_groups);
2371: if (scalar(@groups) < 4) {
2372: $numgroupvis = scalar(@groups) + 1;
2373: }
2374: unshift(@groups,'all'); # Put 'all' at the front of the list
2375: } else {
2376: my @coursegroups = split(/:/,$env{'request.course.groups'});
2377: if (@coursegroups > 0) {
2378: @coursegroups = sort {$a cmp $b} @coursegroups;
2379: @groups = ('all',@coursegroups);
2380: if (scalar(@groups) < 4) {
2381: $numgroupvis = scalar(@groups) + 1;
2382: }
2383: } else {
2384: @groups = ('all');
2385: $numgroupvis = 1;
2386: }
2387: }
2388: foreach my $group (@groups) {
2389: $group_sel .= " <option value=\"$group\">$group</option>\n";
2390: }
2391:
2392: my $function = &Apache::loncommon::get_users_function();
2393: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2394: $env{'user.domain'});
2395: my %lt = &Apache::lonlocal::texthash(
2396: 'diop' => 'Display Options',
2397: 'curr' => 'Current setting ',
2398: 'actn' => 'Action',
2399: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2400: 'soor' => 'Sort order',
2401: 'spur' => 'Specific user roles',
2402: 'sprs' => 'Specific role status',
2403: 'spse' => 'Specific sections',
2404: 'spgr' => 'Specific groups',
2405: 'psub' => 'Pick specific users (by name)',
2406: 'shal' => 'Show a list of current posters',
2407: 'stor' => 'Save changes',
2408: );
2409:
2410: my %sort_types = ();
2411: my %role_types = ();
2412: my %status_types = ();
2413: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2414:
2415: my $js = <<END;
2416: <script type="text/javascript">
2417: function verifyFilter() {
2418: var rolenum = 0
2419: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2420: if (document.modifyshown.rolefilter.options[i].selected == true) {
2421: rolenum ++
2422: }
2423: }
2424: if (rolenum == 0) {
2425: document.modifyshown.rolefilter.options[0].selected = true
2426: }
2427:
2428: var secnum = 0
2429: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2430: if (document.modifyshown.sectionpick.options[i].selected == true) {
2431: secnum ++
2432: }
2433: }
2434: if (secnum == 0) {
2435: document.modifyshown.sectionpick.options[0].selected = true
2436: }
2437:
2438: var grpnum = 0
2439: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2440: if (document.modifyshown.grouppick.options[i].selected == true) {
2441: grpnum ++
2442: }
2443: }
2444: if (grpnum == 0) {
2445: document.modifyshown.grouppick.options[0].selected = true
2446: }
2447:
2448: document.modifyshown.submit();
2449: }
2450: </script>
2451: END
2452:
2453: my $start_page=
2454: &Apache::loncommon::start_page('Discussion options',$js);
2455: my $end_page=
2456: &Apache::loncommon::end_page();
2457:
2458: $r->print(<<END);
2459: $start_page
2460: <form name="modifyshown" method="post" action="/adm/feedback">
2461: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2462: <br />
2463: <table border="0">
2464: <tr>
2465: <th>$lt{'soor'}</th>
2466: <th> </th>
2467: <th>$lt{'sprs'}</th>
2468: <th> </th>
2469: <th>$lt{'spur'}</th>
2470: <th> </th>
2471: <th>$lt{'spse'}</th>
2472: <th> </th>
2473: <th>$lt{'spgr'}</th>
2474: <th> </th>
2475: <th>$lt{'psub'}</th>
2476: </tr>
2477: <tr>
2478: <td align="center" valign="top">
2479: <select name="sortposts">
2480: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2481: <option value="descdate">$sort_types{'descdate'}</option>
2482: <option value="thread">$sort_types{'thread'}</option>
2483: <option value="subject">$sort_types{'subject'}</option>
2484: <option value="username">$sort_types{'username'}</option>
2485: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2486: </select>
2487: </td>
2488: <td> </td>
2489: <td align="center" valign="top">
2490: <select name="statusfilter">
2491: <option value="all" selected="selected">$status_types{'all'}</option>
2492: <option value="Active">$status_types{'Active'}</option>
2493: <option value="Expired">$status_types{'Expired'}</option>
2494: <option value="Future">$status_types{'Future'}</option>
2495: </select>
2496: </td>
2497: <td> </td>
2498: <td align="center" valign="top">
2499: <select name="rolefilter" multiple="multiple" size="5">
2500: <option value="all">$role_types{'all'}</option>
2501: <option value="st">$role_types{'st'}</option>
2502: <option value="$ccrole">$role_types{$ccrole}</option>
2503: <option value="in">$role_types{'in'}</option>
2504: <option value="ta">$role_types{'ta'}</option>
2505: <option value="ep">$role_types{'ep'}</option>
2506: <option value="ad">$role_types{'ad'}</option>
2507: <option value="cr">$role_types{'cr'}</option>
2508: </select>
2509: </td>
2510: <td> </td>
2511: <td align="center" valign="top">
2512: <select name="sectionpick" multiple="multiple" size="$numvisible">
2513: $section_sel
2514: </select>
2515: </td>
2516: <td> </td>
2517: <td align="center" valign="top">
2518: <select name="grouppick" multiple="multiple" size="$numvisible">
2519: $group_sel
2520: </select>
2521: </td>
2522: <td> </td>
2523: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2524: </tr>
2525: </table>
2526: <br />
2527: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2528: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2529: <input type="hidden" name="previous" value="$previous" />
2530: <input type="hidden" name="applysort" value="$symb" />
2531: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2532: END
2533: if (exists($env{'form.group'})) {
2534: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2535: }
2536: if (exists($env{'form.ref'})) {
2537: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2538: }
2539: $r->print("
2540: <br />
2541: <br />
2542: </form>
2543: $end_page
2544: ");
2545: }
2546:
2547: sub print_showposters {
2548: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2549:
2550: &Apache::loncommon::content_type($r,'text/html');
2551: $r->send_http_header;
2552:
2553: &Apache::lonenc::check_encrypt(\$symb);
2554: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2555: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2556: my $group = $env{'form.group'};
2557: my $ressymb = &wrap_symb($symb);
2558: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
2559: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2560: $cdom,$cnum);
2561: my %namesort = ();
2562: my %postcounts = ();
2563:
2564: my %lt = &Apache::lonlocal::texthash(
2565: sele => 'Select',
2566: full => 'Fullname',
2567: usdo => 'Username:domain',
2568: post => 'Posts',
2569: );
2570: if ($contrib{'version'}) {
2571: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2572: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2573: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2574: unless ((($hidden) && (!$seehidden)) || ($deleted)) {
2575: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2576: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2577: my $lastname = $names{'lastname'};
2578: my $firstname = $names{'firstname'};
2579: if ($lastname eq '') {
2580: $lastname = '_';
2581: }
2582: if ($firstname eq '') {
2583: $firstname = '_';
2584: }
2585: unless (defined($namesort{$lastname})) {
2586: %{$namesort{$lastname}} = ();
2587: }
2588: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2589: $postcounts{$poster} ++;
2590: if (defined($namesort{$lastname}{$firstname})) {
2591: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2592: push(@{$namesort{$lastname}{$firstname}}, $poster);
2593: }
2594: } else {
2595: @{$namesort{$lastname}{$firstname}} = ("$poster");
2596: }
2597: }
2598: }
2599: }
2600: }
2601:
2602: my $start_page = &Apache::loncommon::start_page('Discussion options');
2603: my $table_start =&Apache::loncommon::start_data_table();
2604: $r->print(<<END);
2605: $start_page
2606: <form name="pickpostersform" method="post" action="">
2607: <br />
2608: $table_start
2609: <tr>
2610: <th>#</th>
2611: <th>$lt{'sele'}</th>
2612: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2613: <th>$lt{'post'}</th>
2614: </tr>
2615: END
2616: my $count = 0;
2617: foreach my $last (sort(keys(%namesort))) {
2618: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2619: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2620: my ($uname,$udom) = split(/:/,$user);
2621: if (!$uname || !$udom) {
2622: next;
2623: } else {
2624: $count ++;
2625: $r->print(&Apache::loncommon::start_data_table_row().
2626: '<td align="right">'.$count.'</td>
2627: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2628: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2629: <td>'.$postcounts{$user}.'</td>'.
2630: &Apache::loncommon::end_data_table_row());
2631: }
2632: }
2633: }
2634: }
2635: $r->print(&Apache::loncommon::end_data_table());
2636: my $end_page = &Apache::loncommon::end_page();
2637: $r->print(<<END);
2638: <br />
2639: <input type="hidden" name="sortposts" value="$sortposts" />
2640: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2641: <input type="hidden" name="userpick" value="$symb" />
2642: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2643: </form>
2644: $end_page
2645: END
2646: }
2647:
2648: sub get_post_versions {
2649: my ($versions,$incoming,$htmldecode,$numver) = @_;
2650: if ($incoming =~ /^<version num="0">/) {
2651: my $p = HTML::LCParser->new(\$incoming);
2652: my $done = 0;
2653:
2654: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2655: my $num = $token->[1]{num};
2656: my $text = $p->get_text("/version");
2657: if (defined($numver)) {
2658: if ($num == $numver) {
2659: if ($htmldecode) {
2660: $text = &HTML::Entities::decode($text);
2661: }
2662: $$versions{$numver}=$text;
2663: $done = 1;
2664: }
2665: } else {
2666: if ($htmldecode) {
2667: $text = &HTML::Entities::decode($text);
2668: }
2669: $$versions{$num}=$text;
2670: }
2671: }
2672: } else {
2673: if (!defined($numver)) {
2674: $numver = 0;
2675: }
2676: if ($htmldecode) {
2677: $$versions{$numver} = $incoming;
2678: } else {
2679: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2680: }
2681: }
2682: return;
2683: }
2684:
2685: sub get_post_attachments {
2686: my ($attachments,$attachmenturls) = @_;
2687: my $num;
2688: if ($attachmenturls =~ m/^<attachment id="0">/) {
2689: my $p = HTML::LCParser->new(\$attachmenturls);
2690: while (my $token = $p->get_tag("attachment","filename","post")) {
2691: if ($token->[0] eq "attachment") {
2692: $num = $token->[1]{id};
2693: %{$$attachments{$num}} =();
2694: } elsif ($token->[0] eq "filename") {
2695: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2696: } elsif ($token->[0] eq "post") {
2697: my $id = $token->[1]{id};
2698: $$attachments{$num}{$id} = $p->get_text("/post");
2699: }
2700: }
2701: } else {
2702: %{$$attachments{'0'}} = ();
2703: $$attachments{'0'}{'filename'} = $attachmenturls;
2704: $$attachments{'0'}{'0'} = 'n';
2705: }
2706: return;
2707: }
2708:
2709: sub fail_redirect {
2710: my ($r,$feedurl,$delay) = @_;
2711: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2712: my %lt = &Apache::lonlocal::texthash(
2713: 'sorr' => 'Sorry, no recipients ...',
2714: );
2715: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2716: my %parms=('only_body' => 1);
2717: if ($delay !~ /^\d+(|\.\d+)$/) {
2718: $delay = 2;
2719: }
2720: if ($env{'form.modal'}) {
2721: my $onload = 'document.forms.reldt.submit()';
2722: if ($delay) {
2723: my $js_delay = int(1000 * $delay);
2724: $onload = "setTimeout(function(){
2725: document.forms.reldt.submit();
2726: },$js_delay);";
2727: }
2728: $parms{'add_entries'}={'onload' => $onload};
2729: } else {
2730: $parms{'redirect'}=[$delay,$feedurl];
2731: }
2732: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,\%parms));
2733: my $windowname = 'loncapaclient';
2734: $r->print(<<ENDFAILREDIR);
2735: <img align="right" src="$logo" />
2736: <p class="LC_warning">$lt{'sorr'}</p>
2737: <form name="reldt" action="$feedurl" target="$windowname">
2738: </form>
2739: ENDFAILREDIR
2740: $r->print(&Apache::loncommon::end_page());
2741: }
2742:
2743: sub redirect_back {
2744: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,
2745: $rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge,$delay) = @_;
2746: my $sorttag = '';
2747: my $roletag = '';
2748: my $statustag = '';
2749: my $sectag = '';
2750: my $grptag = '';
2751: my $userpicktag = '';
2752: my $qrystr = '';
2753: my $prevtag = '';
2754:
2755: &Apache::loncommon::content_type($r,'text/html');
2756: $r->send_http_header;
2757: &dewrapper(\$feedurl);
2758: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2759: if ($previous > 0) {
2760: $qrystr = 'previous='.$previous;
2761: if ($feedurl =~ /\?register=1/) {
2762: $feedurl .= '&'.$qrystr;
2763: } else {
2764: $feedurl .= '?'.$qrystr;
2765: }
2766: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2767: }
2768: if (defined($sort)) {
2769: my $sortqry = 'sortposts='.$sort;
2770: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2771: $feedurl .= '&'.$sortqry;
2772: } else {
2773: $feedurl .= '?'.$sortqry;
2774: }
2775: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2776: if (defined($numpicks)) {
2777: my $userpickqry = 'totposters='.$numpicks;
2778: $feedurl .= '&'.$userpickqry;
2779: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2780: } else {
2781: if (ref($sectionpick) eq 'ARRAY') {
2782: $feedurl .= '&sectionpick=';
2783: $sectag .= '<input type="hidden" name="sectionpick" value="';
2784: foreach my $sec (@{$sectionpick}) {
2785: $feedurl .= $sec.',';
2786: $sectag .= $sec.',';
2787: }
2788: $feedurl =~ s/,$//;
2789: $sectag =~ s/,$//;
2790: $sectag .= '" />';
2791: } else {
2792: $feedurl .= '&sectionpick='.$sectionpick;
2793: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2794: }
2795: if (ref($grouppick) eq 'ARRAY') {
2796: $feedurl .= '&grouppick=';
2797: $sectag .= '<input type="hidden" name="grouppick" value="';
2798: foreach my $grp (@{$grouppick}) {
2799: $feedurl .= $grp.',';
2800: $grptag .= $grp.',';
2801: }
2802: $feedurl =~ s/,$//;
2803: $grptag =~ s/,$//;
2804: $grptag .= '" />';
2805: } else {
2806: $feedurl .= '&grouppick='.$grouppick;
2807: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2808: }
2809: if (ref($rolefilter) eq 'ARRAY') {
2810: $feedurl .= '&rolefilter=';
2811: $roletag .= '<input type="hidden" name="rolefilter" value="';
2812: foreach my $role (@{$rolefilter}) {
2813: $feedurl .= $role.',';
2814: $roletag .= $role.',';
2815: }
2816: $feedurl =~ s/,$//;
2817: $roletag =~ s/,$//;
2818: $roletag .= '" />';
2819: } else {
2820: $feedurl .= '&rolefilter='.$rolefilter;
2821: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2822: }
2823: $feedurl .= '&statusfilter='.$statusfilter;
2824: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2825: }
2826: }
2827: my $grouptag;
2828: if ($group ne '') {
2829: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2830: my $refarg;
2831: if (exists($env{'form.ref'})) {
2832: $refarg = '&ref='.$env{'form.ref'};
2833: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2834: }
2835: if ($feedurl =~ /\?/) {
2836: $feedurl .= '&group='.$group.$refarg;
2837: } else {
2838: $feedurl .= '?group='.$group.$refarg;
2839: }
2840: }
2841: &Apache::lonenc::check_encrypt(\$feedurl);
2842: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2843: my %parms=('only_body' => 1);
2844: if ($delay !~ /^\d+(|\.\d+)$/) {
2845: $delay = 0;
2846: }
2847: if ($env{'form.modal'}) {
2848: my $onload = 'document.forms.reldt.submit()';
2849: if ($delay) {
2850: my $js_delay = int(1000 * $delay);
2851: $onload = "setTimeout(function(){
2852: document.forms.reldt.submit();
2853: },$js_delay);";
2854: }
2855: $parms{'add_entries'}={'onload' => $onload};
2856: } else {
2857: $parms{'redirect'}=[$delay,$feedurl];
2858: }
2859: my $start_page=
2860: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2861: my $end_page = &Apache::loncommon::end_page();
2862: $r->print(<<ENDREDIR);
2863: $start_page
2864: <img align="right" src="$logo" />
2865: $typestyle
2866: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2867: $blog
2868: $toolarge
2869: <font color="red">$status</font>
2870: <form name="reldt" action="$feedurl" target="loncapaclient">
2871: $prevtag
2872: $sorttag
2873: $statustag
2874: $roletag
2875: $sectag
2876: $grptag
2877: $userpicktag
2878: $grouptag
2879: </form>
2880: $end_page
2881: ENDREDIR
2882: }
2883:
2884: sub no_redirect_back {
2885: my ($r,$feedurl,$delay) = @_;
2886: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2887: my $form_for_modal;
2888: my %parms=('only_body' => 1,
2889: 'bgcolor' => '#FFFFFF',);
2890: if ($delay !~ /^\d+(|\.\d+)$/) {
2891: $delay = 0;
2892: }
2893: if ($env{'form.modal'}) {
2894: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2895: my $onload = 'document.forms.reldt.submit()';
2896: if ($delay) {
2897: my $js_delay = int(1000 * $delay);
2898: $onload = "setTimeout(function(){
2899: document.forms.reldt.submit();
2900: },$js_delay);";
2901: }
2902: $parms{'add_entries'}={'onload' => $onload};
2903: my $windowname = 'loncapaclient';
2904: $form_for_modal = <<ENDFORM;
2905: <form name="reldt" action="$feedurl" target="$windowname">
2906: </form>
2907: ENDFORM
2908: }
2909: } else {
2910: if (($feedurl !~ m{^/adm/feedback}) && ($feedurl ne '')) {
2911: $parms{'redirect'}=[$delay,$feedurl];
2912: }
2913: }
2914: my $start_page=
2915: &Apache::loncommon::start_page('Feedback not sent',undef,
2916: \%parms);
2917:
2918: my $end_page = &Apache::loncommon::end_page();
2919:
2920: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2921: $r->print (<<ENDNOREDIRTWO);
2922: $start_page
2923: <img align="right" src="$logo" />
2924: <b>$nofeed</b>
2925: <br />
2926: $form_for_modal
2927: $end_page
2928: ENDNOREDIRTWO
2929: }
2930:
2931: sub screen_header {
2932: my ($feedurl,$symb,$group) = @_;
2933: my %default = &Apache::lonlocal::texthash (
2934: question => 'Question about resource content',
2935: comment => 'Question/Comment/Feedback about course content',
2936: policy => 'Question/Comment/Feedback about course policy',
2937: );
2938: my $contribdisc = &mt('Contribution to course discussion of resource');
2939: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2940: my $namevis = &mt('name only visible to course faculty');
2941: my $crstype;
2942: if ($env{'request.course.id'}) {
2943: $crstype = &Apache::loncommon::course_type();
2944: if ($crstype eq 'Community') {
2945: $default{'comment'} = &mt('Question/Comment/Feedback about community content');
2946: $default{'policy'} = &mt('Question/Comment/Feedback about community policy');
2947: $contribdisc = &mt('Contribution to community discussion of resource');
2948: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2949: $namevis = &mt('name only visible to community facilitators');
2950: }
2951: }
2952: my $msgoptions='';
2953: my $discussoptions='';
2954: my $checkradio = '';
2955: my $blockblog;
2956: my (%fdbkoptions,%discoptions);
2957: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2958: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2959: $fdbkoptions{'author'} = 1;
2960: }
2961: if (&feedback_available(1)) {
2962: $fdbkoptions{'question'} = 1;
2963: }
2964: if (&feedback_available(0,1)) {
2965: $fdbkoptions{'course'} = 1;
2966: }
2967: if (&feedback_available(0,0,1)) {
2968: $fdbkoptions{'policy'} = 1;
2969: }
2970: }
2971: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2972: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
2973: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2974: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2975: my $realsymb = &get_realsymb($symb);
2976: if (!$blocked && &discussion_open(undef,$realsymb) &&
2977: (&Apache::lonnet::allowed('pch',
2978: $env{'request.course.id'}.
2979: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
2980: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
2981: $discoptions{'nonanon'} = 1;
2982: $discoptions{'anon'} = 1;
2983: $blockblog = &Apache::loncommon::blocking_status('blogs');
2984: }
2985: }
2986: my $total = scalar(keys(%fdbkoptions)) + scalar(keys(%discoptions));
2987: return if (!$total);
2988: if ($total == 1) {
2989: $checkradio = ' checked="checked"';
2990: }
2991: if (keys(%fdbkoptions)) {
2992: if ($fdbkoptions{'author'}) {
2993: $msgoptions =
2994: '<label><input type="radio" name="discuss" value="author"'.$checkradio.' /> '.
2995: &mt('Feedback to resource author').'</label><br />';
2996: }
2997: foreach my $item ('question','comment','policy') {
2998: my $type = $item;
2999: if ($item eq 'comment') {
3000: $type = 'course';
3001: }
3002: my $optionhash=$env{'course.'.$env{'request.course.id'}.'.'.$item.'.email.text'};
3003: if ($fdbkoptions{$type}) {
3004: $msgoptions .=
3005: '<label><input type="radio" name="discuss" value="'.$type.'"'.$checkradio.' />'.
3006: ($optionhash?$optionhash:$default{$item}).'</label><br />';
3007: }
3008: }
3009: }
3010: if (keys(%discoptions)) {
3011: if ($discoptions{'nonanon'}) {
3012: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
3013: $contribdisc.
3014: '</label>';
3015: }
3016: if ($discoptions{'anon'}) {
3017: $discussoptions .= '<br /><label><input type="radio" name="discuss" value="anon"'.$checkradio.' /> '.
3018: $anoncontrib.
3019: ' <i>('.$namevis.')</i></label> '.
3020: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
3021: }
3022: if (!$blockblog) {
3023: $discussoptions.= &add_blog_checkbox($crstype);
3024: }
3025: }
3026: if ($msgoptions) {
3027: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
3028: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
3029: '<td>'.$msgoptions.'</td></tr>';
3030: }
3031: if ($discussoptions) {
3032: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
3033: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
3034: '<td>'.$discussoptions.'</td></tr>';
3035: }
3036: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
3037: }
3038:
3039: sub resource_output {
3040: my ($feedurl) = @_;
3041: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
3042: $usersaw=~s/\<body[^\>]*\>//gi;
3043: $usersaw=~s/\<\/body\>//gi;
3044: $usersaw=~s/\<html\>//gi;
3045: $usersaw=~s/\<\/html\>//gi;
3046: $usersaw=~s/\<head\>//gi;
3047: $usersaw=~s/\<\/head\>//gi;
3048: $usersaw=~s/action\s*\=/would_be_action\=/gi;
3049: return $usersaw;
3050: }
3051:
3052: sub clear_out_html {
3053: my ($message,$override)=@_;
3054: # Always allow the <m>-tag
3055: my %html=(M=>1);
3056: # Check if more is allowed
3057: my $cid=$env{'request.course.id'};
3058: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
3059: ($override)) {
3060: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
3061: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
3062: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
3063: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
3064: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
3065: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
3066: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
3067: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
3068: }
3069: # Do the substitution of everything that is not explicitly allowed
3070: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
3071: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
3072: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
3073: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
3074: return $message;
3075: }
3076:
3077: sub assemble_email {
3078: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
3079: my %lt = &Apache::lonlocal::texthash(
3080: 'prev' => 'Previous attempts of student (if applicable)',
3081: 'orig' => 'Original screen output (if applicable)',
3082: 'corr' => 'Correct Answer(s) (if applicable)',
3083: );
3084: if (&Apache::loncommon::course_type() eq 'Community') {
3085: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
3086: }
3087: my $email=<<"ENDEMAIL";
3088: $message
3089: ENDEMAIL
3090: my $citations=<<"ENDCITE";
3091: <h2>$lt{'prev'}</h2>
3092: $prevattempts
3093: <br /><hr />
3094: <h2>$lt{'orig'}</h2>
3095: $usersaw
3096: <h2>$lt{'corr'}</h2>
3097: $useranswer
3098: ENDCITE
3099: return ($email,$citations);
3100: }
3101:
3102:
3103: sub feedback_available {
3104: my ($question,$course,$policy)=@_;
3105: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
3106: $course,$policy);
3107: return scalar(%to);
3108: }
3109:
3110: sub send_msg {
3111: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,$clientip,%to)=@_;
3112: my $status='';
3113: my $sendsomething=0;
3114: my $delay;
3115: my $senthide;
3116: my %setters;
3117: my ($startblock,$endblock,$triggerblock,$by_ip,$blockdom) =
3118: &Apache::loncommon::blockcheck(\%setters,'com',$clientip);
3119: if ($by_ip) {
3120: $senthide = 1;
3121: }
3122: my $restitle = &get_resource_title($symb,$feedurl);
3123: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
3124: unless ($title=~/\w/) { $title=&mt('Feedback'); }
3125: foreach my $key (keys(%to)) {
3126: if ($key) {
3127: my ($user,$domain) = split(/\:/,$key,2);
3128: if (!defined($user)) {
3129: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
3130: } elsif (!defined($domain)) {
3131: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
3132: } else {
3133: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
3134: $title.' ['.$restitle.']',$email,$citations,$feedurl,
3135: $attachmenturl,undef,undef,$symb,$restitle,undef,
3136: undef,undef,undef,$senthide)=~/ok/) {
3137: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
3138: } else {
3139: $sendsomething++;
3140: }
3141: }
3142: }
3143: }
3144: if ($sendsomething && $senthide) {
3145: if ($by_ip) {
3146: my $showdom = &Apache::lonnet::domain($blockdom);
3147: if ($showdom eq '') {
3148: $showdom = $blockdom;
3149: }
3150: $delay = 4;
3151: $status.='<br />'.&mt("Message content of feedback you send to instructor(s) from your current IP address: [_1] will be unavailable in your 'Sent' folder.",$clientip).
3152: '<ul><li>'.
3153: &mt('This does not affect delivery of feedback to your instructor(s).').
3154: '</li><li>'.
3155: &mt('Note: some types of communication functionality are blocked for certain IP address(es).').
3156: '</li><li>'.
3157: &mt('This restriction was set by an administrator in the [_1] LON-CAPA domain.',
3158: $showdom).
3159: '</li></ul><br />';
3160: }
3161: }
3162:
3163: # Records of number of feedback messages are kept under the "symb" called "_feedback"
3164: # There are two entries within the framework of a course:
3165: # - the URLs for which feedback was provided
3166: # - the total number of contributions
3167: if ($sendsomething) {
3168: my %record=&getfeedbackrecords();
3169: my ($temp)=keys(%record);
3170: unless ($temp=~/^error\:/) {
3171: my %newrecord=();
3172: $newrecord{'resource'}=$feedurl;
3173: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3174: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
3175: $status.='<br />'.&mt('Not registered').'<br />';
3176: }
3177: }
3178: }
3179: return ($status,$sendsomething,$delay);
3180: }
3181:
3182: # Routine to get the complete feedback records
3183:
3184: sub getfeedbackrecords {
3185: my ($uname,$udom,$course)=@_;
3186: unless ($uname) { $uname=$env{'user.name'}; }
3187: unless ($udom) { $udom=$env{'user.domain'}; }
3188: unless ($course) { $course=$env{'request.course.id'}; }
3189: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3190: return %record;
3191: }
3192:
3193: # Routine to get feedback statistics
3194:
3195: sub getfeedbackstats {
3196: my %record=&getfeedbackrecords(@_);
3197: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3198: }
3199:
3200: # Store feedback credit
3201:
3202: sub storefeedbackpoints {
3203: my ($points,$uname,$udom,$course)=@_;
3204: unless ($points) { $points=0; }
3205: unless ($uname) { $uname=$env{'user.name'}; }
3206: unless ($udom) { $udom=$env{'user.domain'}; }
3207: unless ($course) { $course=$env{'request.course.id'}; }
3208: my %record=('grader_user' => $env{'user.name'},
3209: 'grader_domain' => $env{'user.domain'},
3210: 'points' => $points);
3211: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3212: }
3213:
3214: # Store feedback "likes"
3215:
3216: sub storefeedbacklikes {
3217: my ($likes,$uname,$udom,$course)=@_;
3218: unless ($likes) { $likes=0; }
3219: if ($likes>0) { $likes=1; }
3220: if ($likes<0) { $likes=-1; }
3221: unless ($uname) { $uname=$env{'user.name'}; }
3222: unless ($udom) { $udom=$env{'user.domain'}; }
3223: unless ($course) { $course=$env{'request.course.id'}; }
3224: my %record=&getfeedbackrecords($uname,$udom,$course);
3225: my $totallikes=$record{'totallikes'};
3226: $totallikes+=$likes;
3227: my %newrecord=('likes_user' => $env{'user.name'},
3228: 'likes_domain' => $env{'user.domain'},
3229: 'likes' => $likes,
3230: 'totallikes' => $totallikes);
3231: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3232: }
3233:
3234:
3235: sub adddiscuss {
3236: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3237: my $status='';
3238: my $realsymb = &get_realsymb($symb);
3239: my ($cnum,$cdom);
3240: if ($env{'request.course.id'}) {
3241: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3242: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3243: }
3244: if (&discussion_open(undef,$realsymb) &&
3245: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3246: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3247: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3248: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3249:
3250: my %contrib=('message' => $email,
3251: 'sendername' => $env{'user.name'},
3252: 'senderdomain' => $env{'user.domain'},
3253: 'screenname' => $env{'environment.screenname'},
3254: 'plainname' => $env{'environment.firstname'}.' '.
3255: $env{'environment.middlename'}.' '.
3256: $env{'environment.lastname'}.' '.
3257: $env{'enrironment.generation'},
3258: 'attachmenturl'=> $attachmenturl,
3259: 'subject' => $subject);
3260: if ($env{'form.replydisc'}) {
3261: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3262: }
3263: if ($anon) {
3264: $contrib{'anonymous'}='true';
3265: }
3266: if (($symb) && ($email)) {
3267: my $now = time;
3268: if ($env{'form.editdisc'}) {
3269: $contrib{'ip'}=&Apache::lonnet::get_requestor_ip();
3270: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3271: $contrib{'timestamp'} = $now;
3272: $contrib{'history'} = '';
3273: my $numoldver = 0;
3274: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3275: &Apache::lonenc::check_decrypt(\$oldsymb);
3276: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3277: # get timestamp for last post and history
3278: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3279: $env{'course.'.$env{'request.course.id'}.'.domain'},
3280: $env{'course.'.$env{'request.course.id'}.'.num'});
3281: if (defined($oldcontrib{$oldidx.':replyto'})) {
3282: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3283: }
3284: if (defined($oldcontrib{$oldidx.':history'})) {
3285: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3286: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3287: $numoldver = @oldversions;
3288: } else {
3289: $numoldver = 1;
3290: }
3291: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3292: }
3293: my $numnewver = $numoldver + 1;
3294: if (defined($oldcontrib{$oldidx.':subject'})) {
3295: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3296: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3297: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3298: } else {
3299: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3300: }
3301: }
3302: if (defined($oldcontrib{$oldidx.':message'})) {
3303: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3304: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3305: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3306: } else {
3307: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3308: }
3309: }
3310: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3311: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3312: $oldsymb,$oldidx,\%contrib,
3313: $env{'course.'.$env{'request.course.id'}.'.domain'},
3314: $env{'course.'.$env{'request.course.id'}.'.num'});
3315: $status='Editing class discussion'.($anon?' (anonymous)':'');
3316: } else {
3317: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3318: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3319: $env{'course.'.$env{'request.course.id'}.'.domain'},
3320: $env{'course.'.$env{'request.course.id'}.'.num'});
3321: }
3322: my %storenewentry=($symb => $now);
3323: $status.='<br />'.&mt('Updating discussion time').': '.
3324: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3325: $env{'course.'.$env{'request.course.id'}.'.domain'},
3326: $env{'course.'.$env{'request.course.id'}.'.num'});
3327: }
3328: my %record=&getdiscussionrecords();
3329: my ($temp)=keys(%record);
3330: unless ($temp=~/^error\:/) {
3331: my %newrecord=();
3332: $newrecord{'resource'}=$symb;
3333: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3334: $status.='<br />'.&mt('Registering').': '.
3335: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3336: &updatekarma();
3337: }
3338: } else {
3339: $status.='Failed.';
3340: }
3341: return $status.'<br />';
3342: }
3343:
3344:
3345: # Routine to get the complete discussion records
3346:
3347: sub getdiscussionrecords {
3348: my ($uname,$udom,$course)=@_;
3349: unless ($uname) { $uname=$env{'user.name'}; }
3350: unless ($udom) { $udom=$env{'user.domain'}; }
3351: unless ($course) { $course=$env{'request.course.id'}; }
3352: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3353: return %record;
3354: }
3355:
3356: # Routine to get discussion statistics
3357:
3358: sub getdiscussionstats {
3359: my %record=&getdiscussionrecords(@_);
3360: my $totalvotes = $record{'totallikes'} + $record{'totalunlikes'};
3361: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$totalvotes);
3362: }
3363:
3364: # Calculate discussion karma
3365:
3366: sub calcdiscussionkarma {
3367: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3368: my $karma=0;
3369: if ($votes>0) {
3370: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3371: if ($karma<0) { $karma=0; }
3372: if ($karma>5) { $karma=5; }
3373: }
3374: return $karma;
3375: }
3376:
3377: # Update karma
3378:
3379: sub updatekarma {
3380: my ($uname,$udom,$course)=@_;
3381: unless ($uname) { $uname=$env{'user.name'}; }
3382: unless ($udom) { $udom=$env{'user.domain'}; }
3383: unless ($course) { $course=$env{'request.course.id'}; }
3384: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3385: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3386: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3387: return $karma;
3388: }
3389:
3390: # Retrieve karma
3391:
3392: sub userkarma {
3393: my ($uname,$udom,$course)=@_;
3394: unless ($uname) { $uname=$env{'user.name'}; }
3395: unless ($udom) { $udom=$env{'user.domain'}; }
3396: unless ($course) { $course=$env{'request.course.id'}; }
3397: my $hashkey=$uname.':'.$udom.':'.$course;
3398: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3399: if ($cached) {
3400: return $karma;
3401: }
3402: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3403: $karma=$userdisc{'karma'};
3404: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3405: return $karma;
3406: }
3407:
3408: # Store discussion credit
3409:
3410: sub storediscussionpoints {
3411: my ($points,$uname,$udom,$course)=@_;
3412: unless ($points) { $points=0; }
3413: unless ($uname) { $uname=$env{'user.name'}; }
3414: unless ($udom) { $udom=$env{'user.domain'}; }
3415: unless ($course) { $course=$env{'request.course.id'}; }
3416: my %record=('grader_user' => $env{'user.name'},
3417: 'grader_domain' => $env{'user.domain'},
3418: 'points' => $points);
3419: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3420: }
3421:
3422: # Store discussion "likes"
3423:
3424: sub storediscussionlikes {
3425: my ($chglikes,$chgunlikes,$uname,$udom,$course,$context)=@_;
3426: unless ($uname) { $uname=$env{'user.name'}; }
3427: unless ($udom) { $udom=$env{'user.domain'}; }
3428: unless ($course) { $course=$env{'request.course.id'}; }
3429: my %record=&getdiscussionrecords($uname,$udom,$course);
3430: my $totallikes=$record{'totallikes'};
3431: my $totalunlikes=$record{'totalunlikes'};
3432: $totallikes += $chglikes;
3433: $totalunlikes += $chgunlikes;
3434: my %newrecord=('likes_user' => $env{'user.name'},
3435: 'likes_domain' => $env{'user.domain'},
3436: 'totallikes' => $totallikes,
3437: 'totalunlikes' => $totalunlikes,
3438: 'context' => $context);
3439: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3440: if ($status eq 'ok') {
3441: &updatekarma($uname,$udom,$course);
3442: }
3443: return $status;
3444: }
3445:
3446: sub get_discussion_info {
3447: my ($idx,%contrib) = @_;
3448: my $changelast = 0;
3449: my $count = 0;
3450: my $hiddenflag = 0;
3451: my $deletedflag = 0;
3452: my ($hidden,$deleted,%info,$newlastdisc);
3453: my $version = $contrib{'version'};
3454: if ($version) {
3455: for (my $id=$version; $id>0; $id--) {
3456: my $vkeys=$contrib{$id.':keys'};
3457: my @keys=split(/:/,$vkeys);
3458: if (grep(/^hidden$/,@keys)) {
3459: if (!$hiddenflag) {
3460: $hidden = $contrib{$id.':hidden'};
3461: $hiddenflag = 1;
3462: }
3463: } elsif (grep(/^deleted$/,@keys)) {
3464: if (!$deletedflag) {
3465: $deleted = $contrib{$id.':deleted'};
3466: $deletedflag = 1;
3467: }
3468: } else {
3469: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3470: $count++;
3471: $info{$count}{'id'} = $id;
3472: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3473: }
3474: }
3475: }
3476: if ($info{'1'}{'id'} == $idx) {
3477: $changelast = 1;
3478: if ($count > 1) {
3479: $newlastdisc = $info{'2'}{'timestamp'};
3480: } else {
3481: $newlastdisc = 0;
3482: }
3483: }
3484: }
3485: return ($changelast,$newlastdisc);
3486: }
3487:
3488: # ----------------------------------------------------------- Preview function
3489:
3490: sub show_preview {
3491: my ($r) = @_;
3492: &Apache::loncommon::content_type($r,'text/html');
3493: $r->send_http_header;
3494: my $start_page=
3495: &Apache::loncommon::start_page('Preview',undef,
3496: {'only_body' => 1,});
3497:
3498: my $message=&clear_out_html($env{'form.comment'});
3499: &newline_to_br(\$message);
3500: $message=&Apache::lonspeller::markeduptext($message);
3501: $message=&Apache::lontexconvert::msgtexconverted($message);
3502: my $subject=&clear_out_html($env{'form.subject'});
3503: $subject=~s/\n/\<br \/\>/g;
3504: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3505:
3506: my $end_page = &Apache::loncommon::end_page();
3507:
3508: $r->print($start_page
3509: .'<h1>'.&mt('Preview').'</h1>'
3510: .&Apache::lonhtmlcommon::start_pick_box()
3511: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3512: .$subject
3513: .&Apache::lonhtmlcommon::row_closure()
3514: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3515: .$message
3516: .&Apache::lonhtmlcommon::row_closure(1)
3517: .&Apache::lonhtmlcommon::end_pick_box()
3518: .$end_page
3519: );
3520: }
3521:
3522: sub contains_block_html {
3523: my ($message)=@_;
3524: return ($message =~ m{
3525: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3526: \s*
3527: (\w+\=['"]\w+['"])*
3528: \s*
3529: (
3530: \s*/>|
3531: >.*</\1\s*>
3532: )}xs
3533: );
3534: }
3535:
3536: sub tidy_html {
3537: my ($message)=@_;
3538: # my $tidy = HTML::Tidy::libXML->new();
3539: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3540: # $xhtml =~ m/<body>(.*)<\/body>/is;
3541: # my $clean = $1;
3542: # # remove any empty block-level tags
3543: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3544: # $message=$clean;
3545: return $message;
3546: }
3547:
3548: sub newline_to_br {
3549: my ($message)=@_;
3550: my $newmessage;
3551: my $parser=HTML::LCParser->new($message);
3552: while (my $token=$parser->get_token()) {
3553: if ($token->[0] eq 'T') {
3554: my $text=$token->[1];
3555: $text=~s/\n/\<br \/\>/g;
3556: $newmessage.=$text;
3557: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3558: $newmessage.=$token->[1];
3559: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3560: $newmessage.=$token->[2];
3561: } elsif ($token->[0] eq 'S') {
3562: $newmessage.=$token->[4];
3563: }
3564:
3565: }
3566: $$message=$newmessage;
3567: }
3568:
3569: sub generate_preview_button {
3570: my ($formname,$fieldname)=@_;
3571: unless ($formname) { $formname='mailform'; }
3572: unless ($fieldname) { $fieldname='comment'; }
3573: my $pre=&mt("Show Preview and Check Spelling");
3574: return(<<ENDPREVIEW);
3575: <br />
3576: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3577: <input type="hidden" name="subject" />
3578: <input type="hidden" name="comment" />
3579: <input type="button" value="$pre"
3580: 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();" />
3581: </form>
3582: ENDPREVIEW
3583: }
3584:
3585: sub modify_attachments {
3586: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3587: $attachmaxtext,$toolarge)=@_;
3588:
3589: my %lt = &Apache::lonlocal::texthash(
3590: 'subj' => 'Subject',
3591: 'chth' => 'Check the checkboxes for any you wish to remove.',
3592: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3593: 'adda' => 'Add a new attachment to this post',
3594: 'stch' => 'Save Changes',
3595: 'clic' => 'Add/remove attachments',
3596: );
3597: my $js = <<END;
3598: <script type="text/javascript">
3599: function setAction () {
3600: document.modattachments.action = document.modattachments.origpage.value;
3601: document.modattachments.submit();
3602: }
3603: </script>
3604: <script type="text/javascript" src="/res/adm/includes/file_upload.js"></script>
3605: END
3606:
3607: # Breadcrumbs
3608: my $brcrum = [{'href' => '',
3609: 'text' => 'Discussion Post Attachments'}];
3610: my %parms=('only_body' => 1);
3611: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
3612:
3613: my $start_page =
3614: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3615:
3616: my $orig_subject = &unescape($env{'form.subject'});
3617: my $subject=&clear_out_html($orig_subject);
3618: $subject=~s/\n/\<br \/\>/g;
3619: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3620: my $timestamp=$env{'form.timestamp'};
3621: my $numoldver=$env{'form.numoldver'};
3622:
3623: my $msg = '';
3624: my %attachments = ();
3625: my %currattach = ();
3626: if ($idx) {
3627: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3628: }
3629: &Apache::lonenc::check_encrypt(\$symb);
3630:
3631: my $end_page =
3632: &Apache::loncommon::end_page();
3633:
3634: $r->print(<<END);
3635: $start_page
3636: $toolarge
3637: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3638:
3639: <h1>$lt{'clic'}</h1>
3640: END
3641: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3642: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3643: $r->print('<b>'.$subject.'</b>');
3644: $r->print(&Apache::lonhtmlcommon::row_closure());
3645: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3646: $r->print('<input type="file" name="addnewattach" class="LC_flUpload" />'
3647: .'<input type="hidden" id="LC_free_space" value="131072" />'
3648: .'<input type="button" name="upload" value="Upload" '
3649: .'onclick="this.form.submit()" /> '.$attachmaxtext);
3650: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3651: $r->print(&Apache::lonhtmlcommon::row_closure());
3652: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3653: if ($idx) {
3654: if ($attachmenturls) {
3655: my @currold = keys(%currattach);
3656: if (@currold > 0) {
3657: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3658: foreach my $id (@currold) {
3659: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3660: $attachurl =~ m#/([^/]+)$#;
3661: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3662: }
3663: $r->print("<br />");
3664: }
3665: }
3666: }
3667: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
3668: $r->print($lt{'chth'}.'<br />'."\n");
3669: foreach my $attach (@{$currnewattach}) {
3670: $attach =~ m#/([^/]+)$#;
3671: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$attach.'" /> '.$1.'</label><br />'."\n");
3672: }
3673: }
3674: }
3675: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3676: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3677: $r->print(<<END);
3678: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3679: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3680: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3681: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3682: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3683: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3684: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3685: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3686: END
3687: foreach my $item (@{$currnewattach}) {
3688: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3689: }
3690: foreach my $item (@{$currdelold}) {
3691: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3692: }
3693: $r->print(<<END);
3694: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3695: </form>
3696: $end_page
3697: END
3698: return;
3699: }
3700:
3701: sub process_attachments {
3702: my ($currnewattach,$currdelold,$keepold) = @_;
3703:
3704: @{$currnewattach}=
3705: &Apache::loncommon::get_env_multiple('form.currnewattach');
3706: @{$currdelold}=
3707: &Apache::loncommon::get_env_multiple('form.deloldattach');
3708: if (exists($env{'form.delnewattach'})) {
3709: my @currdelnew =
3710: &Apache::loncommon::get_env_multiple('form.delnewattach');
3711: my @currnew = ();
3712: foreach my $newone (@{$currnewattach}) {
3713: my $delflag = 0;
3714: foreach my $item (@currdelnew) {
3715: if ($newone eq $item) {
3716: $delflag = 1;
3717: last;
3718: }
3719: }
3720: unless ($delflag) {
3721: push(@currnew, $newone);
3722: }
3723: }
3724: @{$currnewattach} = @currnew;
3725: }
3726: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3727: }
3728:
3729: sub generate_attachments_button {
3730: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3731: $numoldver,$mode,$blockblog) = @_;
3732: my $origpage = $ENV{'REQUEST_URI'};
3733: my $att=$attachnum.' '.&mt("attachments");
3734: my %lt = &Apache::lonlocal::texthash(
3735: 'clic' => 'Add/remove attachments',
3736: );
3737: my $response = (<<END);
3738: <br />
3739: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3740: <input type="button" value="$lt{'clic'}"
3741: 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);
3742: END
3743: if (!$blockblog) {
3744: $response .= 'setblogvalue();';
3745: }
3746: unless ($mode eq 'board') {
3747: $response .= 'javascript:anonchk();';
3748: }
3749: $response .= (<<ENDATTACH);
3750: this.form.submit();" />
3751: <input type="hidden" name="origpage" value="$origpage" />
3752: <input type="hidden" name="idx" value="$idx" />
3753: <input type="hidden" name="timestamp" value="$now" />
3754: <input type="hidden" name="subject" />
3755: <input type="hidden" name="comment" />
3756: <input type="hidden" name="blog" value="0" />
3757: <input type="hidden" name="discuss" value="0" />
3758: <input type="hidden" name="numoldver" value="$numoldver" />
3759: ENDATTACH
3760: if (defined($deloldattach)) {
3761: if (@{$deloldattach} > 0) {
3762: foreach my $delatt (@{$deloldattach}) {
3763: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3764: }
3765: }
3766: }
3767: if (defined($currnewattach)) {
3768: if (@{$currnewattach} > 0) {
3769: foreach my $attach (@{$currnewattach}) {
3770: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3771: }
3772: }
3773: }
3774: $response .= '</form>';
3775: return $response;
3776: }
3777:
3778: sub extract_attachments {
3779: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3780: %{$attachments}=();
3781: &get_post_attachments($attachments,$attachmenturls);
3782: foreach my $id (sort(keys(%{$attachments}))) {
3783: if (exists($$attachments{$id}{$numoldver})) {
3784: if (defined($currdelold)) {
3785: if (@{$currdelold} > 0) {
3786: unless (grep/^$id$/,@{$currdelold}) {
3787: $$currattach{$id} = $$attachments{$id}{$numoldver};
3788: }
3789: } else {
3790: $$currattach{$id} = $$attachments{$id}{$numoldver};
3791: }
3792: } else {
3793: $$currattach{$id} = $$attachments{$id}{$numoldver};
3794: }
3795: }
3796: }
3797: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3798: if (@attached == 1) {
3799: my $id = $attached[0];
3800: my $attachurl;
3801: if ($attachmenturls =~ m/^<attachment id="0">/) {
3802: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3803: } else {
3804: $attachurl = $$attachments{$id}{'filename'};
3805: }
3806: $attachurl=~m|/([^/]+)$|;
3807: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3808: $1.'</tt></a><br />';
3809: &Apache::lonnet::allowuploaded('/adm/feedback',
3810: $attachurl);
3811: } elsif (@attached > 1) {
3812: $$message.='<ol>';
3813: foreach my $attach (@attached) {
3814: my $id = $attach;
3815: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3816: my ($fname)
3817: =($attachurl=~m|/([^/]+)$|);
3818: $$message .= '<li><a href="'.$attachurl.
3819: '"><tt>'.
3820: $fname.'</tt></a></li>';
3821: &Apache::lonnet::allowuploaded('/adm/feedback',
3822: $attachurl);
3823: }
3824: $$message .= '</ol>';
3825: }
3826: }
3827:
3828: sub construct_attachmenturl {
3829: my ($currnewattach,$keepold,$symb,$idx)=@_;
3830: my $oldattachmenturl;
3831: my $newattachmenturl;
3832: my $startnum = 0;
3833: my $currver = 0;
3834: if (($env{'form.editdisc'}) && ($idx)) {
3835: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3836: $env{'course.'.$env{'request.course.id'}.'.domain'},
3837: $env{'course.'.$env{'request.course.id'}.'.num'});
3838: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3839: if ($contrib{$idx.':history'}) {
3840: if ($contrib{$idx.':history'} =~ /:/) {
3841: my @oldversions = split(/:/,$contrib{$idx.':history'});
3842: $currver = 1 + scalar(@oldversions);
3843: } else {
3844: $currver = 2;
3845: }
3846: } else {
3847: $currver = 1;
3848: }
3849: if ($oldattachmenturl) {
3850: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3851: my %attachments = ();
3852: my $prevver = $currver-1;
3853: &get_post_attachments(\%attachments,$oldattachmenturl);
3854: my $numattach = scalar(keys(%attachments));
3855: $startnum += $numattach;
3856: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3857: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3858: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3859: unless ($item eq 'filename') {
3860: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3861: }
3862: }
3863: if (grep/^$num$/,@{$keepold}) {
3864: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3865: }
3866: $newattachmenturl .= '</attachment>';
3867: }
3868: } else {
3869: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3870: unless (grep/^0$/,@{$keepold}) {
3871: $newattachmenturl .= '<post id="1">n</post>';
3872: }
3873: $newattachmenturl .= '</attachment>';
3874: $startnum ++;
3875: }
3876: }
3877: }
3878: for (my $i=0; $i<@{$currnewattach}; $i++) {
3879: my $attachnum = $startnum + $i;
3880: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3881: }
3882: return $newattachmenturl;
3883: }
3884:
3885: sub add_blog_checkbox {
3886: my ($crstype) = @_;
3887: my $checkstatus;
3888: if ($env{'form.blog'}) {
3889: $checkstatus = 'checked="checked"';
3890: }
3891: my $output = '
3892: <script type="text/javascript">
3893: function setblogvalue() {
3894: if (document.mailform.blog.checked) {
3895: document.attachment.blog.value = 1;
3896: } else {
3897: document.attachment.blog.value = 0;
3898: }
3899: }
3900: </script><br />
3901: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3902: if ($crstype eq 'Community') {
3903: $output .= &mt('Add to my public community blog');
3904: } else {
3905: $output .= &mt('Add to my public course blog');
3906: }
3907: $output .= '</label><br />'."\n";
3908: return $output;
3909: }
3910:
3911: sub has_discussion {
3912: my $resourcesref = shift;
3913: my $navmap = Apache::lonnavmaps::navmap->new();
3914: if (defined($navmap)) {
3915: my @allres=$navmap->retrieveResources();
3916: foreach my $resource (@allres) {
3917: if ($resource->hasDiscussion()) {
3918: my $ressymb = $resource->wrap_symb();
3919: if (ref($resourcesref) eq 'ARRAY') {
3920: push(@{$resourcesref}, $ressymb);
3921: }
3922: }
3923: }
3924: } else {
3925: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3926: }
3927: return;
3928: }
3929:
3930: sub sort_filter_names {
3931: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3932: if (ref($sort_types) eq 'HASH') {
3933: %{$sort_types} = (
3934: ascdate => 'Date order - oldest first',
3935: descdate => 'Date order - newest first',
3936: thread => 'Threaded',
3937: subject => 'By subject',
3938: username => 'By domain and username',
3939: lastfirst => 'By last name, first name'
3940: );
3941: }
3942: my @courseroles = qw(st in ta ep ad);
3943: if ($crstype eq 'Community') {
3944: push(@courseroles,'co');
3945: } else {
3946: push(@courseroles,'cc');
3947: }
3948: if (ref($role_types) eq 'HASH') {
3949: foreach my $role (@courseroles) {
3950: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3951: }
3952: $role_types->{'all'} = 'All roles';
3953: $role_types->{'cr'} = 'Custom role';
3954: }
3955: if (ref($status_types) eq 'HASH') {
3956: %{$status_types} = (
3957: all => 'Roles of any status',
3958: Active => 'Only active roles',
3959: Expired => 'Only past roles',
3960: Future => 'Only future roles',
3961: );
3962: }
3963: }
3964:
3965: sub handler {
3966: my $r = shift;
3967: if ($r->header_only) {
3968: &Apache::loncommon::content_type($r,'text/html');
3969: $r->send_http_header;
3970: return OK;
3971: }
3972:
3973: # --------------------------- Get query string for limited number of parameters
3974:
3975: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
3976: ['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']);
3977: my $group = $env{'form.group'};
3978: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3979: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3980:
3981: my %attachmax = (
3982: text => &mt('(128 KB max size)'),
3983: num => 131072,
3984: );
3985: if ($env{'form.editdisc'}) {
3986: if (!(&editing_allowed($env{'form.editdisc'},$group))) {
3987: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3988: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3989: my $feedurl=&Apache::lonnet::clutter($url);
3990: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />',
3991: '0','0','','',$env{'form.previous'},undef,undef,undef,
3992: undef,undef,undef,$group);
3993: return OK;
3994: }
3995: }
3996: if ($env{'form.discsymb'}) {
3997: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
3998: my $readkey = $symb.'_read';
3999: my $chgcount = 0;
4000: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
4001: foreach my $key (keys(%env)) {
4002: if ($key =~ m/^form\.postunread_(\d+)/) {
4003: if ($readinghash{$readkey} =~ /\.$1\./) {
4004: $readinghash{$readkey} =~ s/\.$1\.//;
4005: $chgcount ++;
4006: }
4007: } elsif ($key =~ m/^form\.postread_(\d+)/) {
4008: unless ($readinghash{$readkey} =~ /\.$1\./) {
4009: $readinghash{$readkey} .= '.'.$1.'.';
4010: $chgcount ++;
4011: }
4012: }
4013: }
4014: if ($chgcount > 0) {
4015: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4016: \%readinghash,$env{'user.domain'},$env{'user.name'});
4017: }
4018: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
4019: '0','0','','',$env{'form.previous'},'','','',
4020: undef,undef,undef,$group);
4021: return OK;
4022: }
4023: if ($env{'form.allversions'}) {
4024: &Apache::loncommon::content_type($r,'text/html');
4025: &Apache::loncommon::no_cache($r);
4026: $r->send_http_header;
4027:
4028: # Breadcrumbs
4029: my $brcrum = [{'href' => '',
4030: 'text' => 'Discussion Post Versions'}];
4031:
4032: my %parms=();
4033: if ($env{'form.modal'} ne 'yes') { $parms{'bread_crumbs'} = $brcrum; }
4034:
4035: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
4036:
4037: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
4038: ($symb, my $feedurl)=&get_feedurl_and_clean_symb($symb);
4039: my $ressymb = &wrap_symb($symb);
4040: my $seeid;
4041: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
4042: $seeid = 1;
4043: }
4044: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4045: if ($idx > 0) {
4046: my %messages = ();
4047: my %subjects = ();
4048: my %attachmsgs = ();
4049: my %allattachments = ();
4050: my %imsfiles = ();
4051: my ($screenname,$plainname,$showaboutme);
4052: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4053: $cdom,$cnum);
4054: $r->print(&get_post_contents(\%contrib,$idx,$seeid,$seehidden,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
4055: }
4056: $r->print(&Apache::loncommon::end_page());
4057: return OK;
4058: }
4059: if ($env{'form.posterlist'}) {
4060: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4061: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
4062: $env{'form.sortposts'});
4063: return OK;
4064: }
4065: if ($env{'form.userpick'}) {
4066: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
4067: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
4068: my $numpicks = @posters;
4069: my %discinfo;
4070: $discinfo{$symb.'_userpick'} = join('&',@posters);
4071: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4072: \%discinfo,$env{'user.domain'},$env{'user.name'});
4073: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4074: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
4075: '',$numpicks,$group);
4076: return OK;
4077: }
4078: if ($env{'form.applysort'}) {
4079: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
4080: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
4081: '',$env{'form.previous'},$env{'form.sortposts'},
4082: $env{'form.rolefilter'},$env{'form.statusfilter'},
4083: $env{'form.sectionpick'},$env{'form.grouppick'},
4084: undef,$group);
4085: return OK;
4086: } elsif ($env{'form.cmd'} eq 'sortfilter') {
4087: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4088: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
4089: return OK;
4090: } elsif ($env{'form.navtime'}) {
4091: my %discinfo = ();
4092: my @resources = ();
4093: if (defined($env{'form.navmaps'})) {
4094: if ($env{'form.navmaps'} =~ /:/) {
4095: @resources = split(/:/,$env{'form.navmaps'});
4096: } else {
4097: @resources = ("$env{'form.navmaps'}");
4098: }
4099: } else {
4100: &has_discussion(\@resources);
4101: }
4102: my $numitems = @resources;
4103: my $feedurl = '/adm/navmaps';
4104: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
4105: my %lt = &Apache::lonlocal::texthash(
4106: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
4107: );
4108: foreach my $res (@resources) {
4109: my $ressymb=$res;
4110: &Apache::lonenc::check_decrypt(\$ressymb);
4111: my $lastkey = $ressymb.'_lastread';
4112: $discinfo{$lastkey} = $env{'form.navtime'};
4113: }
4114: my $textline = '<b>'.
4115: &mt('Marked "New" posts as read in a total of [_1] resources/discussion boards.',
4116: $numitems).
4117: '</b>';
4118: if ($numitems > 0) {
4119: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4120: \%discinfo,$env{'user.domain'},$env{'user.name'});
4121: } else {
4122: $textline = "<b>$lt{'twnp'}</b>";
4123: }
4124: &Apache::loncommon::content_type($r,'text/html');
4125: $r->send_http_header;
4126: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
4127: my %onload;
4128:
4129: my $start_page=
4130: &Apache::loncommon::start_page('New posts marked as read',undef,
4131: {'redirect' => [2,$feedurl],
4132: 'only_body' => 1,
4133: 'add_entries' => \%onload});
4134: my $end_page = &Apache::loncommon::end_page();
4135: $r->print (<<ENDREDIR);
4136: $start_page
4137: <img align="right" src="$logo" />
4138: $textline
4139: <form name="reldt" action="$feedurl" target="loncapaclient">
4140: </form>
4141: <br />
4142: $end_page
4143: ENDREDIR
4144: return OK;
4145: } elsif ($env{'form.modifydisp'}) {
4146: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
4147: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
4148: split(/_/,$env{'form.changes'});
4149: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
4150: $dispchgB,$markchg,$toggchg,$feedurl);
4151: return OK;
4152: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
4153: $env{'form.allposts'} || $env{'form.onlyunread'} ||
4154: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
4155: $env{'form.toggon'} || $env{'form.markread'}) {
4156: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4157: my %discinfo;
4158: # ------------------------ Modify setting for read/unread toggle for each post
4159: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
4160: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
4161: # --------- Modify setting for identification of 'NEW' posts in this discussion
4162: if ($env{'form.markondisp'}) {
4163: $discinfo{$symb.'_lastread'} = time;
4164: $discinfo{$symb.'_markondisp'} = 1;
4165: }
4166: if ($env{'form.markonread'}) {
4167: if ( $env{'form.previous'} > 0 ) {
4168: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
4169: }
4170: $discinfo{$symb.'_markondisp'} = 0;
4171: }
4172: # --------------------------------- Modify display setting for this discussion
4173: if ($env{'form.allposts'}) {
4174: $discinfo{$symb.'_showonlyunread'} = 0;
4175: $discinfo{$symb.'_showonlyunmark'} = 0;
4176: }
4177: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
4178: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
4179: # ----------------------------------------------------- Mark new posts not NEW
4180: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
4181: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4182: \%discinfo,$env{'user.domain'},$env{'user.name'});
4183: my $previous=$env{'form.previous'};
4184: if ($env{'form.markondisp'}) { $previous=undef; }
4185: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4186: '0','0','','',$previous,'','','','','','',$group);
4187: return OK;
4188: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4189: # ----------------------------------------------------------------- Hide/unhide
4190: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4191: my ($symb,$idx)=split(/\:\:\:/,$entry);
4192: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4193: my $ressymb = &wrap_symb($symb);
4194:
4195: my $seehidden = &can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum);
4196: unless (($seehidden) || (&editing_allowed($env{'form.hide'},$group))) {
4197: &redirect_back($r,$feedurl,&mt('Hiding not permitted').'<br />',
4198: '0','0','','',$env{'form.previous'},'','','','',
4199: undef,undef,$group);
4200: return OK;
4201: }
4202:
4203: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4204: $cdom,$cnum);
4205:
4206: my $currenthidden=$contrib{'hidden'};
4207: my $currentstudenthidden=$contrib{'studenthidden'};
4208:
4209: if ($env{'form.hide'}) {
4210: $currenthidden.='.'.$idx.'.';
4211: unless ($seehidden) {
4212: $currentstudenthidden.='.'.$idx.'.';
4213: }
4214: } else {
4215: $currenthidden=~s/\.$idx\.//g;
4216: }
4217: my %newhash=('hidden' => $currenthidden);
4218: if ( ($env{'form.hide'}) && (!$seehidden) ) {
4219: $newhash{'studenthidden'} = $currentstudenthidden;
4220: }
4221: if ($env{'form.hide'}) {
4222: my $changelast = 0;
4223: my $newlast;
4224: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4225: if ($changelast) {
4226: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4227: $cdom,$cnum);
4228: }
4229: }
4230: my $result;
4231: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4232: $cdom,$cnum) eq 'ok') {
4233: my $prefix=$symb.':'.$idx.':';
4234: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4235: '^'.$prefix);
4236: my ($totallikes,$totalunlikes);
4237: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4238: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4239: }
4240: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4241: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4242: }
4243: if ($totallikes || $totalunlikes) {
4244: my ($chglikes,$chgunlikes,$context);
4245: if ($env{'form.hide'}) {
4246: $chglikes = -1 * $totallikes;
4247: $chgunlikes = -1 * $totalunlikes;
4248: $context = 'hide';
4249: } else {
4250: $chglikes = $totallikes;
4251: $chgunlikes = $totalunlikes;
4252: $context = 'unhide';
4253: }
4254: &storediscussionlikes($chglikes,$chgunlikes,
4255: $contrib{$idx.':sendername'},
4256: $contrib{$idx.':senderdomain'},
4257: $env{'request.course.id'},
4258: $context);
4259:
4260: }
4261: $result = &mt('Changed discussion status');
4262: } else {
4263: $result = &mt('Discussion status unchanged');
4264: }
4265: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4266: $env{'form.previous'},undef,undef,undef,
4267: undef,undef,undef,$group);
4268: return OK;
4269: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4270: # ----------------------------------------------------------------- Like/unlike
4271: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4272: my ($symb,$idx)=split(/\:\:\:/,$entry);
4273: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4274: my $result;
4275: if ($idx > 0) {
4276: my $realsymb = &get_realsymb($symb);
4277: my $status='OPEN';
4278: if ($Apache::lonhomework::parsing_a_problem ||
4279: $Apache::lonhomework::parsing_a_task) {
4280: $status=$Apache::inputtags::status[-1];
4281: }
4282: if (&discussion_vote_available($status,$realsymb)) {
4283: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4284: $cdom,$cnum);
4285: my $ownpost;
4286: if (($contrib{$idx.':sendername'} eq $env{'user.name'}) &&
4287: ($contrib{$idx.':senderdomain'} eq $env{'user.domain'})) {
4288: $ownpost = 1;
4289: }
4290: if ($ownpost || $contrib{$idx.':hidden'} || $contrib{$idx.':deleted'}) {
4291: $result = &mt('Vote not registered.').' ';
4292: }
4293: if ($ownpost) {
4294: $result .= &mt('No voting for your own posts.');
4295: } elsif ($contrib{$idx.':hidden'}) {
4296: $result .= &mt('No voting for hidden posts.');
4297: } elsif ($contrib{$idx.':deleted'}) {
4298: $result .= &mt('No voting for deleted posts.');
4299: } else {
4300: #
4301: # Likes and unlikes are in db-file "disclikes" of the course
4302: # The prefix is the $symb to identify the resource discussion,
4303: # and the $idx to identify the entry
4304: #
4305: my $prefix=$symb.':'.$idx.':';
4306: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4307: '^'.$prefix);
4308:
4309: # Get current like or unlike status for the $idx for this user.
4310: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4311: my ($userlikes,$userunlikes);
4312: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4313: if (exists($likes{$prefix.'likers'}{$thisuser})) {
4314: $userlikes = 1;
4315: }
4316: }
4317: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4318: if (exists($likes{$prefix.'unlikers'}{$thisuser})) {
4319: $userunlikes = 1;
4320: }
4321: }
4322: # Get the current "likes" count
4323: my $likescount=$likes{$prefix.'likes'};
4324: # Find out if they already voted
4325: # Users cannot like a post twice, or unlike it twice.
4326: # They can change their mind, though.
4327: my $alreadyflag=0;
4328: my $votetype;
4329: if ($env{'form.like'}) {
4330: if ($userlikes) {
4331: $alreadyflag=1;
4332: } elsif ($userunlikes) {
4333: delete($likes{$prefix.'unlikers'}{$thisuser});
4334: $votetype = 'switch';
4335: $likescount++;
4336: } else {
4337: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4338: $likes{$prefix.'likers'}{$thisuser} = 1;
4339: } else {
4340: $likes{$prefix.'likers'} = {$thisuser => 1};
4341: }
4342: $likescount++;
4343: }
4344: } else {
4345: if ($userunlikes) {
4346: $alreadyflag=1;
4347: } elsif ($userlikes) {
4348: delete($likes{$prefix.'likers'}{$thisuser});
4349: $votetype = 'switch';
4350: $likescount--;
4351: } else {
4352: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4353: $likes{$prefix.'unlikers'}{$thisuser} = 1;
4354: } else {
4355: $likes{$prefix.'unlikers'} = {$thisuser => 1};
4356: }
4357: $likescount--;
4358: }
4359: }
4360: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4361: if ($alreadyflag) {
4362: if ($env{'form.like'}) {
4363: $result= &mt("'Like' already registered");
4364: } else {
4365: $result= &mt("'Unlike' already registered");
4366: }
4367: } else {
4368: my %newhash=($prefix.'likes' => $likescount,
4369: $prefix.'likers' => $likes{$prefix.'likers'},
4370: $prefix.'unlikers' => $likes{$prefix.'unlikers'});
4371: # Store data in db-file "disclikes"
4372: if (&Apache::lonnet::put('disclikes',\%newhash,$cdom,$cnum) eq 'ok') {
4373: # Also store with the person who posted the liked/unliked entry
4374: my ($chglike,$chgunlike);
4375: if ($env{'form.like'}) {
4376: if ($votetype eq 'switch') {
4377: $chglike = 0;
4378: $chgunlike = -1;
4379: } else {
4380: $chglike = 1;
4381: $chgunlike = 0;
4382: }
4383: &storediscussionlikes($chglike,$chgunlike,
4384: $contrib{$idx.':sendername'},
4385: $contrib{$idx.':senderdomain'},
4386: $env{'request.course.id'},'like');
4387: $result=&mt("Registered 'Like'");
4388: } else {
4389: if ($votetype eq 'switch') {
4390: $chglike = -1;
4391: $chgunlike = 0;
4392: } else {
4393: $chglike = 0;
4394: $chgunlike = 1;
4395: }
4396: &storediscussionlikes($chglike,$chgunlike,
4397: $contrib{$idx.':sendername'},
4398: $contrib{$idx.':senderdomain'},
4399: $env{'request.course.id'},'unlike');
4400: $result=&mt("Registered 'Unlike'");
4401: }
4402: } else {
4403: # Oops, something went wrong
4404: $result=&mt("Failed to register vote");
4405: }
4406: }
4407: }
4408: } else {
4409: $result=&mt('Voting unavailable for this discussion');
4410: }
4411: } else {
4412: $result=&mt('Invalid post number');
4413: }
4414: &redirect_back($r,$feedurl,$result.'<br />',
4415: '0','0','','',$env{'form.previous'},undef,undef,undef,
4416: undef,undef,undef,$group);
4417: return OK;
4418: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4419: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4420: if ($env{'form.cmd'} eq 'threadedoff') {
4421: &Apache::lonnet::put('environment',{'unthreadeddiscussion' => 'on'});
4422: &Apache::lonnet::appenv({'environment.unthreadeddiscussion' => 'on'});
4423: &Apache::lonnet::del('environment',['threadeddiscussion']);
4424: &Apache::lonnet::delenv('environment.threadeddiscussion');
4425: } else {
4426: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4427: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4428: &Apache::lonnet::del('environment',['unthreadeddiscussion']);
4429: &Apache::lonnet::delenv('environment.unthreadeddiscussion');
4430: }
4431: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4432: '0','0','','',$env{'form.previous'},undef,undef,undef,
4433: undef,undef,undef,$group);
4434: return OK;
4435: } elsif ($env{'form.deldisc'}) {
4436: # --------------------------------------------------------------- Hide for good
4437: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4438: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4439: my $ressymb=&wrap_symb($symb);
4440:
4441: unless (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4442: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />',
4443: '0','0','','',$env{'form.previous'},'','','','',
4444: undef,undef,$group);
4445: return OK;
4446: }
4447: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4448: $cdom,$cnum);
4449: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4450: if ($changelast) {
4451: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4452: $cdom,$cnum);
4453: }
4454: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4455:
4456: my $result;
4457: if (&Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4458: $cdom,$cnum) eq 'ok') {
4459: $result = &mt('Changed discussion status');
4460: my $prefix=$symb.':'.$idx.':';
4461: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,
4462: '^'.$prefix);
4463: my ($totallikes,$totalunlikes);
4464: if (ref($likes{$prefix.'likers'}) eq 'HASH') {
4465: $totallikes = scalar(keys(%{$likes{$prefix.'likers'}}));
4466: }
4467: if (ref($likes{$prefix.'unlikers'}) eq 'HASH') {
4468: $totalunlikes = scalar(keys(%{$likes{$prefix.'unlikers'}}));
4469: }
4470: if ($totallikes || $totalunlikes) {
4471: my $chglikes = -1 * $totallikes;
4472: my $chgunlikes = -1 * $totalunlikes;
4473: &storediscussionlikes($chglikes,$chgunlikes,
4474: $contrib{$idx.':sendername'},
4475: $contrib{$idx.':senderdomain'},
4476: $env{'request.course.id'},
4477: 'delete');
4478: }
4479: } else {
4480: $result = &mt('Discussion status unchanged');
4481: }
4482: &redirect_back($r,$feedurl,$result.'<br />','0','0','','',
4483: $env{'form.previous'},undef,undef,undef,
4484: undef,undef,undef,$group);
4485: return OK;
4486: } elsif ($env{'form.preview'}) {
4487: # -------------------------------------------------------- User wants a preview
4488: &show_preview($r);
4489: return OK;
4490: } elsif ($env{'form.attach'}) {
4491: # -------------------------------------------------------- Work on attachments
4492: &Apache::loncommon::content_type($r,'text/html');
4493: $r->send_http_header;
4494: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4495: my (@currnewattach,@currdelold,@keepold,$toolarge);
4496: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4497: if (exists($env{'form.addnewattach.filename'})) {
4498: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4499: my $subdir = 'feedback/'.$env{'form.timestamp'};
4500: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4501: push(@currnewattach, $newattachment);
4502: } else {
4503: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4504: }
4505: }
4506: my $attachmenturls;
4507: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4508: my $idx = $env{'form.idx'};
4509: if ($idx) {
4510: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4511: $cdom,$cnum);
4512: $attachmenturls = $contrib{$idx.':attachmenturl'};
4513: }
4514: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4515: $attachmenturls,$attachmax{'text'},$toolarge);
4516: return OK;
4517: } elsif ($env{'form.export'}) {
4518: &Apache::loncommon::content_type($r,'text/html');
4519: $r->send_http_header;
4520: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4521: my $mode='board';
4522: my $status='OPEN';
4523: my $previous=$env{'form.previous'};
4524: if ($feedurl =~ /$LONCAPA::assess_re/) {
4525: $mode='problem';
4526: $status=$Apache::inputtags::status[-1];
4527: }
4528:
4529: my $discussion = &list_discussion($mode,$status,$symb);
4530: my $start_page =
4531: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4532: my $end_page =
4533: &Apache::loncommon::end_page();
4534: $r->print($start_page.$discussion.$end_page);
4535: return OK;
4536:
4537: } elsif ($env{'form.undeleteall'}) {
4538: &Apache::loncommon::content_type($r,'text/html');
4539: $r->send_http_header;
4540: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4541: my $ressymb=&wrap_symb($symb);
4542: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4543: if (&can_see_hidden('',$ressymb,$feedurl,$group,$cdom,$cnum)) {
4544: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4545: $cdom,$cnum);
4546: $contrib{'deleted'} =~ s/^\.//;
4547: $contrib{'deleted'} =~ s/\.$//;
4548: my $confirm_msg;
4549: if ($contrib{'deleted'} ne '') {
4550: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4551: $cdom,$cnum) eq 'ok') {
4552: my %likes=&Apache::lonnet::dump('disclikes',$cdom,$cnum,'^'.$symb.':');
4553: my @ids = split(/\.\./,$contrib{'deleted'});
4554: my (%chglikes,%chgunlikes);
4555: foreach my $idx (@ids) {
4556: my $uname = $contrib{$idx.':sendername'};
4557: my $udom = $contrib{$idx.':senderdomain'};
4558: my ($totallikes,$totalunlikes);
4559: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
4560: $totallikes = scalar(keys(%{$likes{$symb.':'.$idx.':likers'}}));
4561: }
4562: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
4563: $totalunlikes = scalar(keys(%{$likes{$symb.':'.$idx.':unlikers'}}));
4564: }
4565: if ($totallikes || $totalunlikes) {
4566: $chglikes{$uname.':'.$udom} += $totallikes;
4567: $chgunlikes{$uname.':'.$udom} += $totalunlikes;
4568: }
4569: }
4570: foreach my $user (keys(%chglikes)) {
4571: my ($uname,$udom) = split(/:/,$user);
4572: &storediscussionlikes($chglikes{$user},$chgunlikes{$user},
4573: $uname,$udom,$env{'request.course.id'},
4574: 'undelete');
4575: }
4576: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries"));
4577: } else {
4578: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1);
4579: }
4580: } else {
4581: $confirm_msg = &Apache::lonhtmlcommon::confirm_success(&mt("No entries to undelete"),1);
4582: }
4583: $r->print(
4584: '<br />'
4585: .&Apache::loncommon::confirmwrapper($confirm_msg)
4586: .&Apache::lonhtmlcommon::actionbox(
4587: ["<a href='$feedurl'>".&mt("Return and reload")."</a>"])
4588: );
4589: }
4590: $r->print(&Apache::loncommon::end_page());
4591: return OK;
4592: } else {
4593: # ------------------------------------------------------------- Normal feedback
4594: my $feedurl=$env{'form.postdata'};
4595: $feedurl=~s/^https?\:\/\///;
4596: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4597: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4598: $feedurl=~s/\?.+$//;
4599:
4600: my $symb;
4601: if ($env{'form.replydisc'}) {
4602: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4603: } elsif ($env{'form.editdisc'}) {
4604: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4605: } elsif ($env{'form.origpage'}) {
4606: $symb="";
4607: } elsif ($env{'form.sendmessageonly'}) {
4608: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4609: } else {
4610: $symb=&Apache::lonnet::symbread($feedurl);
4611: }
4612: unless ($symb) {
4613: $symb=$env{'form.symb'};
4614: }
4615: if (defined($symb)) {
4616: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4617: } else {
4618: # backward compatibility (bulletin boards used to be 'wrapped')
4619: &Apache::lonenc::check_decrypt(\$feedurl);
4620: &dewrapper(\$feedurl);
4621: }
4622: my $goahead=1;
4623: if ($feedurl=~/$LONCAPA::assess_re/) {
4624: unless ($symb) { $goahead=0; }
4625: }
4626: if (!$goahead) {
4627: # Ambiguous Problem Resource
4628: $r->internal_redirect('/adm/ambiguous');
4629: return OK;
4630: }
4631: if ($feedurl eq '') {
4632: &Apache::loncommon::content_type($r,'text/html');
4633: $r->send_http_header;
4634: &no_redirect_back($r);
4635: return OK;
4636: }
4637: # Go ahead with feedback, no ambiguous reference
4638: unless (
4639: (
4640: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4641: )
4642: ||
4643: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4644: ||
4645: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4646: ) {
4647: &Apache::loncommon::content_type($r,'text/html');
4648: $r->send_http_header;
4649: # Unable to give feedback
4650: &Apache::lonenc::check_encrypt(\$feedurl);
4651: &no_redirect_back($r,$feedurl,2);
4652: return OK;
4653: }
4654: # --------------------------------------------------- Print login screen header
4655: unless ($env{'form.sendit'}) {
4656: &Apache::lonenc::check_encrypt(\$feedurl);
4657: &Apache::loncommon::content_type($r,'text/html');
4658: $r->send_http_header;
4659: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4660: my ($blocked,$blocktext) =
4661: &Apache::loncommon::blocking_status('boards');
4662: if ($blocked) {
4663: $r->print(&blocked_reply_or_edit($blocktext));
4664: return OK;
4665: }
4666: }
4667: my $options=&screen_header($feedurl,$symb,$group);
4668: if ($options) {
4669: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4670: } else {
4671: &fail_redirect($r,$feedurl,2);
4672: }
4673: return OK;
4674: }
4675:
4676: # Get previous user input
4677: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4678: $symb,$env{'user.name'},$env{'user.domain'},
4679: $env{'request.course.id'});
4680:
4681: # Get output from resource
4682: &Apache::lonenc::check_encrypt(\$feedurl);
4683: my $usersaw=&resource_output($feedurl);
4684:
4685: # Get resource answer (need to allow student to view grades for this to work)
4686: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4687: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4688: my $useranswer=
4689: &Apache::loncommon::get_student_answers(
4690: $usersymb,$env{'user.name'},$env{'user.domain'},
4691: $env{'request.course.id'});
4692: &Apache::lonnet::delenv('allowed.vgr');
4693: # Get attachments, if any, and not too large
4694: my $attachmenturl='';
4695: my $toolarge='';
4696: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4697: ($env{'form.replydisc'})) {
4698: my ($symb,$idx);
4699: if ($env{'form.replydisc'}) {
4700: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4701: } elsif ($env{'form.editdisc'}) {
4702: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4703: } elsif ($env{'form.origpage'}) {
4704: $symb = $env{'form.symb'};
4705: }
4706: &Apache::lonenc::check_decrypt(\$symb);
4707: my @currnewattach = ();
4708: my @deloldattach = ();
4709: my @keepold = ();
4710: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4711: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4712: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4713: } elsif ($env{'form.attachment.filename'}) {
4714: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4715: my $now = time;
4716: my $subdir = 'feedback/'.$now;
4717: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4718: } else {
4719: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4720: }
4721: }
4722: # Filter HTML out of message (could be nasty)
4723: my $override;
4724: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4725: $override = 1;
4726: }
4727: my $message=&clear_out_html($env{'form.comment'},$override);
4728:
4729: # Assemble email
4730: my ($email,$citations)=&assemble_email($message,$prevattempts,
4731: $usersaw,$useranswer);
4732:
4733: # Who gets this?
4734: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4735:
4736: # Actually send mail
4737: my $clientip = &Apache::lonnet::get_requestor_ip($r);
4738: my ($status,$numsent,$delay)=&send_msg(&clear_out_html($env{'form.subject'}),
4739: $feedurl,$email,$citations,
4740: $attachmenturl,$usersymb,$clientip,%to);
4741:
4742: # Discussion? Store that.
4743: my $numpost=0;
4744: if ( ($env{'form.discuss'} ne ''
4745: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4746: || $env{'form.anondiscuss'} ne '') {
4747: my $subject = &clear_out_html($env{'form.subject'});
4748: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4749: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4750: $subject,$group);
4751: $numpost++;
4752: }
4753:
4754: # Add to blog?
4755:
4756: my $blog='';
4757: if ($env{'form.blog'}) {
4758: my $subject = &clear_out_html($env{'form.subject'});
4759: $status.=&Apache::lonrss::addentry($env{'user.name'},
4760: $env{'user.domain'},
4761: 'CourseBlog_'.$env{'request.course.id'},
4762: $subject,$message,$feedurl,'public');
4763: if (&Apache::loncommon::course_type() eq 'Community') {
4764: $blog='<br />'.&mt('Added to my community blog').'<br />';
4765: } else {
4766: $blog='<br />'.&mt('Added to my course blog').'<br />';
4767: }
4768: }
4769:
4770: # Receipt screen and redirect back to where came from
4771: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},
4772: undef,undef,undef,undef,undef,undef,$group,$toolarge,$delay);
4773: }
4774: return OK;
4775: }
4776:
4777: sub blocked_reply_or_edit {
4778: my ($blocktext) = @_;
4779: return
4780: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4781: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4782: &mt('Back to previous page').
4783: &Apache::loncommon::end_page();
4784: }
4785:
4786: sub wrap_symb {
4787: my ($ressymb)=@_;
4788: if ($ressymb =~ /bulletin___\d+___/) {
4789: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4790: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4791: }
4792: }
4793: return $ressymb;
4794: }
4795:
4796: sub dewrapper {
4797: my ($feedurl)=@_;
4798: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4799: $$feedurl=~s|^/adm/wrapper||;
4800: }
4801: }
4802:
4803: sub get_feedurl {
4804: my ($symb)=@_;
4805: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4806: my $feedurl = &Apache::lonnet::clutter($url);
4807: &dewrapper(\$feedurl);
4808: return $feedurl;
4809: }
4810:
4811: sub get_feedurl_and_clean_symb {
4812: my ($symb)=@_;
4813: &Apache::lonenc::check_decrypt(\$symb);
4814: # backward compatibility (bulletin boards used to be 'wrapped')
4815: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4816: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4817: }
4818: my $feedurl = &get_feedurl($symb);
4819: return ($symb,$feedurl);
4820: }
4821:
4822: sub editing_allowed {
4823: my ($postid,$group) = @_;
4824: $postid = &unescape($postid);
4825: my $can_edit = 0;
4826: if ($group ne '') {
4827: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4828: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4829: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4830: if (&check_group_priv($group,'egp') eq 'ok') {
4831: $can_edit = 1;
4832: }
4833: return $can_edit;
4834: }
4835: }
4836: my $cid = $env{'request.course.id'};
4837: my $role = (split(/\./,$env{'request.role'}))[0];
4838: my $section = $env{'request.course.sec'};
4839: my $allow_editing_config =
4840: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4841: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4842: $can_edit = 1;
4843: } else {
4844: foreach my $editor (split(/,/,$allow_editing_config)) {
4845: my ($editor_role,$editor_sec) = split(/:/,$editor);
4846: if ($editor_role eq $role
4847: && defined($editor_sec)
4848: && defined($section)
4849: && $editor_sec eq $section) {
4850: $can_edit = 1;
4851: last;
4852: }
4853: if ($editor_role eq $role
4854: && !defined($editor_sec)) {
4855: $can_edit = 1;
4856: }
4857: }
4858: }
4859: return $can_edit;
4860: }
4861:
4862: sub check_group_priv {
4863: my ($group,$grp_priv) = @_;
4864: foreach my $priv ('mdg','vcg') {
4865: my $checkcourse = $env{'request.course.id'}.
4866: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4867: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4868: return 'ok';
4869: }
4870: }
4871: if ($grp_priv && $group ne '') {
4872: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4873: return 'ok';
4874: }
4875: }
4876: return '';
4877: }
4878:
4879: sub group_args {
4880: my ($group) = @_;
4881: if ($group eq '') { return ''; }
4882: my $extra_args = '&group='.$group;
4883: if (exists($env{'form.ref'})) {
4884: $extra_args .= '&ref='.$env{'form.ref'};
4885: }
4886: return $extra_args;
4887: }
4888:
4889: sub get_resource_title {
4890: my ($symb,$feedurl) = @_;
4891: my ($restitle,$plainurl);
4892: if (defined($symb)) {
4893: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4894: $restitle = &Apache::lonnet::gettitle($plain_symb);
4895: }
4896: if (defined($feedurl)) {
4897: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4898: }
4899: if (!defined($restitle)) {
4900: if (defined($feedurl)) {
4901: $restitle = &Apache::lonnet::gettitle($plainurl);
4902: }
4903: }
4904: if ($plainurl ne $feedurl) {
4905: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4906: if ($plain_filename eq $restitle) {
4907: $restitle = &mt('Untitled resource');
4908: }
4909: }
4910: if ($restitle eq '') {
4911: $restitle = &mt('Untitled resource');
4912: }
4913: return $restitle;
4914: }
4915:
4916: 1;
4917: __END__
4918:
4919:
4920: =pod
4921:
4922: =head1 NAME
4923:
4924: Apache::lonfeedback.pm
4925:
4926: =head1 SYNOPSIS
4927:
4928: Handles feedback from students to instructors and system administrators.
4929:
4930: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4931:
4932: Used by lonmsg.pm.
4933:
4934: This is part of the LearningOnline Network with CAPA project
4935: described at http://www.lon-capa.org.
4936:
4937: =head1 OVERVIEW
4938:
4939: None
4940:
4941: =head1 SUBROUTINES
4942:
4943: =over
4944:
4945: =item discussion_open()
4946:
4947: =item discussion_visible()
4948:
4949: =item discussion_vote_available()
4950:
4951: =item get_realsymb()
4952:
4953: =item list_discussion()
4954:
4955: =item can_see_hidden()
4956:
4957: =item discussion_link()
4958:
4959: =item send_feedback_link()
4960:
4961: =item send_message_link()
4962:
4963: =item action_links_bar()
4964:
4965: =item postingform_display()
4966:
4967: =item build_posting_display
4968:
4969: =item filter_regexp()
4970:
4971: =item get_post_contents()
4972:
4973: =item replicate_attachments()
4974:
4975: =item mail_screen()
4976:
4977: =item print_display_options()
4978:
4979: =item print_sortfilter_options()
4980:
4981: =item print_showposters()
4982:
4983: =item get_post_versions()
4984:
4985: =item get_post_attachments()
4986:
4987: =item fail_redirect()
4988:
4989: =item redirect_back()
4990:
4991: =item no_redirect_back()
4992:
4993: =item screen_header()
4994:
4995: =item resource_output()
4996:
4997: =item clear_out_html()
4998:
4999: =item assemble_email()
5000:
5001: =item feedback_available()
5002:
5003: =item send_msg()
5004:
5005: =item adddiscuss()
5006:
5007: =item get_discussion_info()
5008:
5009: =item show_preview()
5010:
5011: =item newline_to_br()
5012:
5013: =item tidy_html()
5014:
5015: =item generate_preview_button()
5016:
5017: =item modify_attachments()
5018:
5019: =item process_attachments()
5020:
5021: =item generate_attachments_button()
5022:
5023: =item extract_attachments()
5024:
5025: =item construct_attachmenturl()
5026:
5027: =item add_blog_checkbox()
5028:
5029: =item has_discussion()
5030:
5031: =item sort_filter_names()
5032:
5033: =item handler()
5034:
5035: =item blocked_reply_or_edit()
5036:
5037: =item wrap_symb()
5038:
5039: =item dewrapper()
5040:
5041: =item get_feedurl()
5042:
5043: =item get_feedurl_and_clean_symb()
5044:
5045: =item editing_allowed()
5046:
5047: =item check_group_priv()
5048:
5049: =item group_args()
5050:
5051: =item get_resource_title()
5052:
5053: =back
5054:
5055: =cut
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonfeedback.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface