1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.341 2012/03/15 13:27:25 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 Cwd;
48: use LONCAPA;
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 (($group ne '') && ($mode eq 'board') &&
281: ($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|)) {
282: if (&check_group_priv($group,'dgp') eq 'ok') {
283: $seeid = 1;
284: }
285: } else {
286: $seeid=&Apache::lonnet::allowed('rin',$crs);
287: }
288:
289: # Is voting on discussions available
290: my $realsymb = &get_realsymb($ressymb);
291: my $canvote = &discussion_vote_available($status,$realsymb);
292:
293: my @discussionitems=();
294: my %shown = ();
295: my @posteridentity=();
296:
297: my $current=0;
298: my $visible=0;
299: my @depth=();
300: my @replies = ();
301: my %alldiscussion=();
302: my %imsitems=();
303: my %imsfiles=();
304: my %notshown = ();
305: my %newitem = ();
306: my $maxdepth=0;
307: my %anonhash=();
308: my $anoncnt=0;
309:
310: my $now = time;
311: $discinfo{$visitkey} = $visit;
312:
313: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
314: &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,$canvote,$prevread,$sortposts,$encsymb,$readkey,$showunmark,$showonlyunread,$totposters,\@rolefilter,\@sectionpick,\@grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,\%anonhash,$anoncnt,$group);
315:
316: my $discussion='';
317: my $manifestfile;
318: my $manifestok=0;
319: my $tempexport;
320: my $imsresources;
321: my $copyresult;
322:
323: my $function = &Apache::loncommon::get_users_function();
324: my %lt = &Apache::lonlocal::texthash(
325: 'cuse' => 'My settings for this discussion',
326: 'allposts' => 'All posts',
327: 'unread' => 'New posts only',
328: 'unmark' => 'Unread only',
329: 'ondisp' => 'Once displayed',
330: 'onmark' => 'Once marked not NEW',
331: 'toggoff' => 'Off',
332: 'toggon' => 'On',
333: 'disa' => 'Posts to be displayed',
334: 'npce' => 'Posts cease to be marked "NEW"',
335: 'epcb' => 'Each post can be toggled read/unread',
336: 'chgt' => 'Change',
337: 'disp' => 'Display',
338: 'nolo' => 'Not new',
339: 'togg' => 'Toggle read/unread',
340: 'aner' => 'An error occurred opening the manifest file.',
341: 'difo' => 'Discussion for',
342: 'aerr' => 'An error occurred opening the export file for posting',
343: 'aysu' => 'Are you sure you want to delete this post?',
344: 'dpwn' => 'Deleted posts will no longer be visible to you and other students',
345: 'bwco' => 'but will continue to be visible to your instructor',
346: 'depo' => 'Deleted posts will no longer be visible to you or anyone else.',
347: 'discussions' => 'DISCUSSIONS'
348: );
349:
350: my $currdisp = $lt{'allposts'};
351: my $currmark = $lt{'onmark'};
352: my $currtogg = $lt{'toggoff'};
353: my $dispchange = $lt{'unread'};
354: my $markchange = $lt{'ondisp'};
355: my $toggchange = $lt{'toggon'};
356: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
357: my $displinkA = 'onlyunread';
358: my $displinkB = 'onlyunmark';
359: my $marklink = 'markondisp';
360: my $togglink = 'toggon';
361:
362: if ($markondisp) {
363: $currmark = $lt{'ondisp'};
364: $markchange = $lt{'onmark'};
365: $marklink = 'markonread';
366: }
367:
368: if ($showonlyunread) {
369: $currdisp = $lt{'unread'};
370: $dispchange = $lt{'allposts'};
371: $displinkA = 'allposts';
372: }
373:
374: if ($showunmark) {
375: $currdisp = $lt{'unmark'};
376: $dispchange = $lt{'unmark'};
377: $displinkA='allposts';
378: $displinkB='onlyunread';
379: $showonlyunread = 0;
380: }
381:
382: if ($dischash{$toggkey}) {
383: $currtogg = $lt{'toggon'};
384: $toggchange = $lt{'toggoff'};
385: $togglink = 'toggoff';
386: }
387:
388: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
389:
390: if ($newpostsflag) {
391: $chglink .= '&previous='.$prevread;
392: }
393: $chglink.=&group_args($group);
394:
395: if ($visible) {
396: # Print the discusssion
397: if ($outputtarget eq 'tex') {
398: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
399: '\textbf{'.$lt{'discussions'}.'}\makebox[2 cm][b]{\hrulefill}\vskip 0 mm'.
400: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
401: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
402: } elsif ($outputtarget eq 'export') {
403: # Create temporary directory if this is an export
404: my $now = time;
405: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
406: $tempexport = $$imsextras{'tempexport'};
407: if (!-e $tempexport) {
408: mkdir($tempexport,0700);
409: }
410: $tempexport .= '/'.$$imsextras{'count'};
411: if (!-e $tempexport) {
412: mkdir($tempexport,0700);
413: }
414: } else {
415: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
416: if (!-e $tempexport) {
417: mkdir($tempexport,0700);
418: }
419: $tempexport .= '/'.$now;
420: if (!-e $tempexport) {
421: mkdir($tempexport,0700);
422: }
423: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
424: }
425: if (!-e $tempexport) {
426: mkdir($tempexport,0700);
427: }
428: # open manifest file
429: my $manifest = '/imsmanifest.xml';
430: my $manifestfilename = $tempexport.$manifest;
431: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
432: $manifestok=1;
433: print $manifestfile qq|<?xml version="1.0" encoding="UTF-8"?>
434: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
435: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
436: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
437: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
438: <organizations default="$ressymb">
439: <organization identifier="$ressymb">
440: <title>$lt{'difo'} $ressymb</title>\n|;
441: } else {
442: $discussion .= $lt{'aner'}.'<br />';
443: }
444: } else {
445: my $colspan=$maxdepth+1;
446: $discussion.= &Apache::lonhtmlcommon::scripttag(qq|
447: function verifydelete (caller,symb,idx,newflag,previous,groupparm) {
448: var symbparm = symb+':::'+idx
449: var prevparm = ""
450: if (newflag == 1) {
451: prevparm = "&previous="+previous
452: }
453: if (caller == 'studentdelete') {
454: if (confirm("$lt{'aysu'}\\n$lt{'dpwn'},\\n$lt{'bwco'}")) {
455: document.location.href = "/adm/feedback?hide="+symbparm+prevparm+groupparm
456: }
457: } else {
458: if (caller == 'seeiddelete') {
459: if (confirm("$lt{'aysu'}\\n$lt{'depo'}")) {
460: document.location.href = "/adm/feedback?deldisc="+symbparm+prevparm+groupparm
461: }
462: }
463: }
464: }
465: |);
466: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" >'.
467: "\n".'<table width="100%" class="LC_discussion">';
468: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
469: $newpostsflag,$group,
470: $prevread,$markondisp);
471: my $escsymb=&escape($ressymb);
472: my $numhidden = keys(%notshown);
473: if ($numhidden > 0) {
474: my $colspan = $maxdepth+1;
475: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
476: '<a href="/adm/feedback?allposts=1&symb='.$escsymb;
477: if ($newpostsflag) {
478: $discussion .= '&previous='.$prevread;
479: }
480: $discussion .= &group_args($group);
481: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
482: $numhidden.' ';
483: if ($showunmark) {
484: $discussion .= &mt('posts previously marked read');
485: } else {
486: $discussion .= &mt('previously viewed posts');
487: }
488: $discussion .= '<br/></td></tr>';
489: }
490: }
491:
492: # Choose sort mechanism
493: my @showposts = ();
494: if ($sortposts eq 'descdate') {
495: @showposts = (sort { $b <=> $a } keys(%alldiscussion));
496: } elsif ($sortposts eq 'thread') {
497: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
498: } elsif ($sortposts eq 'subject') {
499: foreach my $key (sort(keys(%subjectsort))) {
500: push(@showposts, @{$subjectsort{$key}});
501: }
502: } elsif ($sortposts eq 'username') {
503: foreach my $domain (sort(keys(%usernamesort))) {
504: foreach my $key (sort(keys(%{$usernamesort{$domain}}))) {
505: push(@showposts, @{$usernamesort{$domain}{$key}});
506: }
507: }
508: } elsif ($sortposts eq 'lastfirst') {
509: foreach my $last (sort(keys(%namesort))) {
510: foreach my $key (sort(keys(%{$namesort{$last}}))) {
511: push(@showposts, @{$namesort{$last}{$key}});
512: }
513: }
514: } else {
515: @showposts = (sort { $a <=> $b } keys(%alldiscussion));
516: }
517: my $currdepth = 0;
518: my $firstidx = $alldiscussion{$showposts[0]};
519: foreach my $post (@showposts) {
520: unless (($sortposts eq 'thread') || (($sortposts eq '') && ($env{'environment.threadeddiscussion'})) || ($outputtarget eq 'export')) {
521: $alldiscussion{$post} = $post;
522: }
523: unless ( ($notshown{$alldiscussion{$post}} eq '1') || ($shown{$alldiscussion{$post}} == 0) ) {
524: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
525: $discussion.="\n<tr>";
526: }
527: my $thisdepth=$depth[$alldiscussion{$post}];
528: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
529: for (1..$thisdepth) {
530: $discussion.='<td> </td>';
531: }
532: }
533: my $colspan=$maxdepth-$thisdepth+1;
534: if ($outputtarget eq 'tex') {
535: #cleanup block
536: $discussionitems[$alldiscussion{$post}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
537: $discussionitems[$alldiscussion{$post}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
538: my $threadinsert='';
539: if ($thisdepth > 0) {
540: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
541: }
542: $discussionitems[$alldiscussion{$post}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
543: $discussionitems[$alldiscussion{$post}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
544:
545: $discussionitems[$alldiscussion{$post}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$post}];
546: $discussion.=$discussionitems[$alldiscussion{$post}];
547: } elsif ($outputtarget eq 'export') {
548: my $postfilename = $alldiscussion{$post}.'-'.$imsitems{$alldiscussion{$post}}{'timestamp'}.'.html';
549: if ($manifestok) {
550: if (($depth[$alldiscussion{$post}] <= $currdepth) && ($alldiscussion{$post} != $firstidx)) {
551: print $manifestfile ' </item>'."\n";
552: }
553: $currdepth = $depth[$alldiscussion{$post}];
554: print $manifestfile "\n".
555: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$post}.'" isvisible="'.
556: $imsitems{$alldiscussion{$post}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$post}.'">'.
557: '<title>'.$imsitems{$alldiscussion{$post}}{'title'}.'</title></item>';
558: $imsresources .= "\n".
559: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$post}.'" type="webcontent" href="'.$postfilename.'">'."\n".
560: '<file href="'.$postfilename.'">'."\n".
561: $imsfiles{$alldiscussion{$post}}{$imsitems{$alldiscussion{$post}}{'currversion'}}.'</file>'."\n".
562: '</resource>';
563: }
564: my $postingfile;
565: my $postingfilename = $tempexport.'/'.$postfilename;
566: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
567: print $postingfile '<html><head><title>Discussion Post</title></head><body>'.
568: $imsitems{$alldiscussion{$post}}{'title'}.' '.
569: $imsitems{$alldiscussion{$post}}{'sender'}.
570: $imsitems{$alldiscussion{$post}}{'timestamp'}.'<br /><br />'.
571: $imsitems{$alldiscussion{$post}}{'message'}.'<br />'.
572: $imsitems{$alldiscussion{$post}}{'attach'}.'</body></html>'."\n";
573: close($postingfile);
574: } else {
575: $discussion .= $lt{'aerr'}.' '.$alldiscussion{$post}.'<br />';
576: }
577: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$post}}{'allattachments'},$tempexport);
578: } else {
579: $discussion.='<td class="'.$bgcols[$newitem{$alldiscussion{$post}}].
580: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$post}].
581: '</td></tr>';
582: }
583: }
584: }
585: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
586: my $colspan=$maxdepth+1;
587: $discussion .= <<END;
588: <tr>
589: <td colspan="$colspan">
590: <table width="100%">
591: <tr>
592: <td class="LC_disc_action_left">
593: <font size="-1"><b>$lt{'cuse'}</b>:
594: END
595: if ($newpostsflag) {
596: $discussion .=
597: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
598: if ($dischash{$toggkey}) {
599: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
600: }
601: } else {
602: if ($dischash{$toggkey}) {
603: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
604: } else {
605: $discussion .=
606: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
607: }
608: }
609: $discussion .= <<END;
610: <b><a href="$chglink">$lt{'chgt'}</a></b></font>
611: </td>
612: END
613: if ($sortposts) {
614: my %sort_types = ();
615: my %role_types = ();
616: my %status_types = ();
617: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
618:
619: $discussion .= '<td class="LC_disc_action_right"><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
620: if (defined($env{'form.totposters'})) {
621: $discussion .= &mt('Posts by').':';
622: if ($totposters > 0) {
623: foreach my $poster (@posters) {
624: $discussion .= ' '.$poster.',';
625: }
626: $discussion =~ s/,$//;
627: } else {
628: $discussion .= &mt('None selected');
629: }
630: } else {
631: my $filterchoice ='';
632: if (@sectionpick > 0) {
633: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
634: $filterchoice .= ' ';
635: }
636: if (@grouppick > 0) {
637: $filterchoice = '<i>'.&mt('groups').'</i>- '.$env{'form.grouppick'};
638: $filterchoice .= ' ';
639: }
640: if (@rolefilter > 0) {
641: $filterchoice .= '<i>'.&mt('roles').'</i>-';
642: foreach my $role (@rolefilter) {
643: $filterchoice .= ' '.$role_types{$role}.',';
644: }
645: $filterchoice =~ s/,$//;
646: $filterchoice .= '<br />'.(' ' x8);
647: }
648: if ($statusfilter) {
649: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
650: }
651: if ($filterchoice) {
652: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
653: }
654: }
655: $discussion .= '</font></td>';
656:
657: }
658: if ($dischash{$toggkey}) {
659: my $storebutton = &mt('Save read/unread changes');
660: $discussion.='<td align="right">'.
661: '<input type="hidden" name="discsymb" value="'.$ressymb.'" />'."\n".
662: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
663: ' onclick="this.form.submit();" />'."\n".
664: '</td>';
665: }
666: $discussion .= (<<END);
667: </tr>
668: </table>
669: </td>
670: </tr>
671: END
672: $discussion .= &action_links_bar($colspan,$ressymb,$visible,
673: $newpostsflag,$group,
674: $prevread,$markondisp);
675: $discussion .= "</table></form>\n";
676: }
677: if ($outputtarget eq 'export') {
678: if ($manifestok) {
679: while ($currdepth > 0) {
680: print $manifestfile " </item>\n";
681: $currdepth --;
682: }
683: print $manifestfile qq|
684: </organization>
685: </organizations>
686: <resources>
687: $imsresources
688: </resources>
689: </manifest>
690: |;
691: close($manifestfile);
692: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
693: $discussion = $copyresult;
694: } else {
695:
696: #Create zip file in prtspool
697:
698: my $imszipfile = '/prtspool/'.
699: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
700: time.'_'.rand(1000000000).'.zip';
701: my $cwd = &getcwd();
702: my $imszip = '/home/httpd/'.$imszipfile;
703: chdir $tempexport;
704: open(OUTPUT, "zip -r $imszip * 2> /dev/null |");
705: close(OUTPUT);
706: chdir $cwd;
707: $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive','<a href="'.$imszipfile.'">').'</a><br />';
708: if ($copyresult) {
709: $discussion .= &mt('The following errors occurred during export').' - <br />'.$copyresult;
710: }
711: }
712: } else {
713: $discussion .= '<br />'.&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.').'<br />';
714: }
715: return $discussion;
716: }
717: }
718: if ($discussiononly) {
719: my $now = time;
720: my $attachnum = 0;
721: my $currnewattach = [];
722: my $currdelold = [];
723: my $comment = '';
724: my $subject = '';
725: if ($env{'form.origpage'}) {
726: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
727: $subject = &unescape($env{'form.subject'});
728: $comment = &unescape($env{'form.comment'});
729: my @keepold = ();
730: &process_attachments($currnewattach,$currdelold,\@keepold);
731: if (@{$currnewattach} > 0) {
732: $attachnum += @{$currnewattach};
733: }
734: }
735: if ((&discussion_open($status)) && ($outputtarget ne 'tex')) {
736: if (($group ne '') && ($mode eq 'board')) {
737: if ((&check_group_priv($group,'pgd') eq 'ok') &&
738: ($ressymb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})) {
739: $discussion .=
740: &postingform_display($mode,$ressymb,$now,$subject,
741: $comment,$outputtarget,$attachnum,
742: $currnewattach,$currdelold,
743: $group,$crstype);
744: }
745: } else {
746: if (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
747: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
748:
749: $discussion.=
750: &postingform_display($mode,$ressymb,$now,$subject,
751: $comment,$outputtarget,$attachnum,
752: $currnewattach,$currdelold,'',$crstype);
753: } else {
754: $discussion.= '<span class="LC_feedback_link">'.
755: &mt('This discussion is closed.').'</span>';
756: }
757: }
758: }
759: if (!(&discussion_open($status)) && ($outputtarget ne 'tex')) {
760: $discussion.= '<span class="LC_feedback_link">'.
761: &mt('This discussion is closed.').'</span>';
762: }
763: } elsif ($outputtarget ne 'tex') {
764: $discussion.='<div class="LC_feedback_link">';
765: if (&discussion_open($status) &&
766: &Apache::lonnet::allowed('pch',
767: $env{'request.course.id'}.
768: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
769: $discussion.= &send_feedback_link($ressymb);
770: if ($env{'request.role.adv'}) {
771: my $close = &Apache::lonnet::EXT('resource.0.discussend',$ressymb);
772: my $canvote = &Apache::lonnet::EXT('resource.0.discussvote',$ressymb);
773: if (defined($close) && $close ne '' && $close < time) {
774: if ($canvote eq 'notended') {
775: $discussion .= ' '.&mt('(Posting and voting closed for [_1] roles)',
776: &Apache::lonnet::plaintext('st',$crstype));
777: } else {
778: $discussion .= ' '.&mt('(Closed for [_1] roles)',
779: &Apache::lonnet::plaintext('st',$crstype));
780: }
781: }
782: }
783: } else {
784: $discussion.= '<span class="LC_feedback_link">'.&mt('This discussion is closed.').'</span>';
785: }
786: $discussion.= &send_message_link($ressymb).'</div>';
787: }
788: return $discussion;
789: }
790:
791:
792: sub discussion_link {
793: my ($ressymb,$linktext,$cmd,$item,$flag,$prev,$adds,$title)=@_;
794: my $link='/adm/feedback?inhibitmenu=yes&modal=yes&'.$cmd.'='.&escape($ressymb).':::'.$item;
795: if ($flag) { $link .= '&previous='.$prev; }
796: if ($adds) { $link .= $adds; }
797: my $width=600;
798: my $height=600;
799: if (($cmd eq 'hide') || ($cmd eq 'unhide') || ($cmd eq 'like') || ($cmd eq 'unlike')) {
800: $width=300;
801: $height=200;
802: }
803: return &Apache::loncommon::modal_link($link,$linktext,$width,$height,undef,undef,$title);
804: }
805:
806:
807: sub send_feedback_link {
808: my ($ressymb) = @_;
809: return '<span class="LC_feedback_link">'.
810: &discussion_link($ressymb,
811: '<img alt="" class="LC_noBorder" src="'.
812: &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
813: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
814: 'replydisc').
815: '</span>';
816: }
817:
818: sub send_message_link {
819: my ($ressymb) = @_;
820: my $output = '<span class="LC_message_link">'.
821: &discussion_link($ressymb,
822: '<img alt="" class="LC_noBorder" src="'.
823: &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
824: '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
825: 'sendmessageonly').
826: '</span>';
827: return $output;
828: }
829:
830: sub action_links_bar {
831: my ($colspan,$ressymb,$visible,$newpostsflag,$group,$prevread,$markondisp) = @_;
832: my $discussion = '<tr><td colspan="'.$colspan.'">'.
833: '<table width="100%"><tr>'.
834: '<td class="LC_disc_action_left">';
835: my $escsymb=&escape($ressymb);
836: if ($visible) {
837: $discussion .= '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
838: if ($newpostsflag) {
839: $discussion .= '&previous='.$prevread;
840: }
841: $discussion .= &group_args($group);
842: $discussion .='">'.&mt('Threaded View').'</a> '.
843: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
844: if ($newpostsflag) {
845: $discussion .= '&previous='.$prevread;
846: }
847: $discussion .= &group_args($group);
848: $discussion .='">'.&mt('Chronological View').'</a> ';
849:
850: my $otherviewurl='/adm/feedback?cmd=sortfilter&symb='.$escsymb.'&inhibitmenu=yes&modal=yes';
851: if ($newpostsflag) {
852: $otherviewurl .= '&previous='.$prevread;
853: }
854: $otherviewurl .= &group_args($group);
855: $discussion .= &Apache::loncommon::modal_link($otherviewurl,&mt('Other Views ...'),800,340);
856: $discussion .= '<br />';
857: }
858: $discussion .='<a href="/adm/feedback?export='.$escsymb;
859: if ($newpostsflag) {
860: $discussion .= '&previous='.$prevread;
861: }
862: $discussion .= &group_args($group);
863: $discussion .= '">'.&mt('Export').'</a>';
864: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'})) {
865: $discussion .= ' ';
866: $discussion .='<a href="/adm/feedback?undeleteall='.$escsymb;
867: if ($newpostsflag) {
868: $discussion .= '&previous='.$prevread;
869: }
870: $discussion .= &group_args($group);
871: $discussion .= '">'.&mt('Undelete all deleted entries').'</a>';
872: }
873: $discussion.='</td>';
874: if ($newpostsflag) {
875: if (!$markondisp) {
876: $discussion .='<td class="LC_disc_action_right"><a href="/adm/preferences?action=changediscussions';
877: $discussion .= &group_args($group);
878: $discussion .= '">'.
879: &mt('My general preferences on what is marked as NEW').
880: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb;
881: $discussion .= &group_args($group);
882: $discussion .= '">'.&mt('Mark NEW posts no longer new').'</a></td>';
883: } else {
884: $discussion .= '<td> </td>';
885: }
886: } else {
887: $discussion .= '<td> </td>';
888: }
889: $discussion .= '</tr></table></td></tr>';
890: return $discussion;
891: }
892:
893: sub postingform_display {
894: my ($mode,$ressymb,$now,$subject,$comment,$outputtarget,$attachnum,
895: $currnewattach,$currdelold,$group,$crstype) = @_;
896: my $newattachmsg;
897: my %lt = &Apache::lonlocal::texthash(
898: 'note' => 'Note: in anonymous discussion, your name is visible only to course faculty',
899: 'title' => 'Title',
900: 'podi' => 'Post Discussion',
901: 'poan' => 'Post Anonymous Discussion',
902: 'newa' => 'New attachments',
903: );
904: if ($crstype eq 'Community') {
905: $lt{'note'} = &mt('Note: in anonymous discussion, your name is visible only to community facilitators');
906: }
907: my ($postingform,$textareaclass);
908: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
909: $postingform = &Apache::lonhtmlcommon::htmlareaselectactive();
910: $textareaclass = 'class="LC_richDefaultOff"';
911: if ($env{'request.course.id'}) {
912: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
913: undef($textareaclass);
914: }
915: }
916: }
917: $postingform .= (<<ENDDISCUSS);
918: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data"> <input type="submit" name="discuss" value="$lt{'podi'}" />
919: <input type="submit" name="anondiscuss" value="$lt{'poan'}" /> <input type="hidden" name="symb" value="$ressymb" />
920: <input type="hidden" name="sendit" value="true" />
921: <input type="hidden" name="timestamp" value="$now" />
922: <a name="newpost"></a>
923: <font size="1">$lt{'note'}</font><br />
924: <b>$lt{'title'}:</b> <input type="text" name="subject" value="$subject" size="30" /><br />
925: <textarea name="comment" cols="80" rows="14" id="comment" $textareaclass>$comment</textarea>
926: ENDDISCUSS
927: if ($env{'form.origpage'}) {
928: $postingform .= '<input type="hidden" name="origpage" value="'.
929: $env{'form.origpage'}.'" />'."\n";
930: foreach my $att (@{$currnewattach}) {
931: $postingform .= '<input type="hidden" name="currnewattach" '.
932: 'value="'.$att.'" />'."\n";
933: }
934: }
935: if (exists($env{'form.ref'})) {
936: $postingform .= '<input type="hidden" name="ref" value="'.
937: $env{'form.ref'}.'" />';
938: }
939: if ($group ne '') {
940: $postingform .='<input type="hidden" name="group" value="'.$group.'" />';
941: }
942: my $blockblog = &Apache::loncommon::blocking_status('blogs');
943: if (!$blockblog) {
944: $postingform .= &add_blog_checkbox($crstype);
945: }
946: $postingform .= "</form>\n";
947: $postingform .= &generate_attachments_button('',$attachnum,$ressymb,
948: $now,$currnewattach,
949: $currdelold,'',$mode,
950: $blockblog);
951: if ((ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)) {
952: $newattachmsg = '<br /><b>'.$lt{'newa'}.'</b><br />';
953: if (@{$currnewattach} > 1) {
954: $newattachmsg .= '<ol>';
955: foreach my $item (@{$currnewattach}) {
956: $item =~ m#.*/([^/]+)$#;
957: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
958: }
959: $newattachmsg .= '</ol>'."\n";
960: } else {
961: $$currnewattach[0] =~ m#.*/([^/]+)$#;
962: $newattachmsg .= '<a href="'.$$currnewattach[0].'">'.$1.'</a><br />'."\n";
963: }
964: }
965: $postingform .= $newattachmsg;
966: $postingform .= &generate_preview_button();
967: return $postingform;
968: }
969:
970: sub build_posting_display {
971: my ($usernamesort,$subjectsort,$namesort,$notshown,$newitem,$dischash,$shown,$alldiscussion,$imsitems,$imsfiles,$roleinfo,$discussionitems,$replies,$depth,$posters,$maxdepth,$visible,$newpostsflag,$current,$status,$viewgrades,$seeid,$canvote,$prevread,$sortposts,$ressymb,$readkey,$showunmark,$showonlyunread,$totposters,$rolefilter,$sectionpick,$grouppick,$classgroups,$statusfilter,$toggkey,$outputtarget,$anonhash,$anoncnt,$group) = @_;
972: my @original=();
973: my @index=();
974: my $skip_group_check = 0;
975: my $symb=&Apache::lonenc::check_decrypt($ressymb);
976: my $escsymb=&escape($ressymb);
977: # These are the discussion contributions
978: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
979: $env{'course.'.$env{'request.course.id'}.'.domain'},
980: $env{'course.'.$env{'request.course.id'}.'.num'});
981: my (%likes,%userlikes,%userunlikes,@theselikes,$oneplus,$twoplus,$oneminus,$twominus);
982: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
983: if ($seeid || $canvote) {
984: # And these are the likes/unlikes
985: %likes=&Apache::lonnet::dump('disclikes',
986: $env{'course.'.$env{'request.course.id'}.'.domain'},
987: $env{'course.'.$env{'request.course.id'}.'.num'},
988: '^'.$symb.':');
989: # Array with likes to figure out averages, etc.
990: @theselikes=();
991: # Hashes containing likes and unlikes for this user.
992: %userlikes=();
993: %userunlikes=();
994: }
995: # Is the user allowed to see the real name behind anonymous postings?
996: my $see_anonymous =
997: &Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''));
998:
999: if ((@{$grouppick} == 0) || (grep(/^all$/,@{$grouppick}))) {
1000: $skip_group_check = 1;
1001: }
1002: # Deletions and hiddens are just lists. Split them up into a hash for quicker lookup
1003: my (%deletions,%hiddens);
1004: if ($contrib{'deleted'}) {
1005: my $deleted = $contrib{'deleted'};
1006: $deleted =~ s/^\.//;
1007: $deleted =~ s/\.$//;
1008: %deletions = map { $_ => 1 } (split(/\.\./,$deleted));
1009: }
1010: if ($contrib{'hidden'}) {
1011: my $hidden = $contrib{'hidden'};
1012: $hidden =~ s/^\.//;
1013: $hidden =~ s/\.$//;
1014: %hiddens = map { $_ => 1 } (split(/\.\./,$hidden));
1015: }
1016: # Versions if store/restore are used to actually store the messages.
1017: if ($contrib{'version'}) {
1018: my $oldest = $contrib{'1:timestamp'};
1019: if ($prevread eq '0') {
1020: $prevread = $oldest-1;
1021: }
1022: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
1023: if ($sortposts) {
1024: ($skiptest,$roleregexp,$secregexp,$statusregexp) =
1025: &filter_regexp($rolefilter,$sectionpick,$statusfilter);
1026: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
1027: }
1028: if ($seeid || $canvote) {
1029: # We need to go through this twice, first to get the likes/dislikes, then to actually build the display
1030: for (my $id=1;$id<=$contrib{'version'};$id++) {
1031: my $idx=$id;
1032: next if ($contrib{$idx.':deleted'});
1033: next if ($contrib{$idx.':hidden'});
1034: unless ((($hiddens{$idx}) && (!$seeid)) || ($deletions{$idx}) || (!$contrib{$idx.':message'})) {
1035: if ($likes{$symb.':'.$idx.':likes'} ne '') {
1036: push(@theselikes,$likes{$symb.':'.$idx.':likes'});
1037: if (ref($likes{$symb.':'.$idx.':likers'}) eq 'HASH') {
1038: if (exists($likes{$symb.':'.$idx.':likers'}{$thisuser})) {
1039: $userlikes{$idx} = 1;
1040: }
1041: }
1042: if (ref($likes{$symb.':'.$idx.':unlikers'}) eq 'HASH') {
1043: if (exists($likes{$symb.':'.$idx.':unlikers'}{$thisuser})) {
1044: $userunlikes{$idx} = 1;
1045: }
1046: }
1047: }
1048: }
1049: }
1050: # Figure out average likes and standard deviation if there are enough
1051: # discussions to warrant that
1052: my $ave=0;
1053: my $stddev=10000;
1054: if ($#theselikes>1) {
1055: my $sum=0;
1056: my $num=$#theselikes+1;
1057: foreach my $thislike (@theselikes) {
1058: $sum+=$thislike;
1059: }
1060: $ave=$sum/$num;
1061: my $sumsq=0;
1062: foreach my $thislike (@theselikes) {
1063: $sumsq+=($thislike-$ave)*($thislike-$ave);
1064: }
1065: $stddev=sqrt($sumsq/$num);
1066: }
1067: # Now we know the average likes $ave and the standard deviation $stddev
1068: # Get the boundaries for markup
1069: $oneplus=$ave+$stddev;
1070: $twoplus=$ave+2.*$stddev;
1071: $oneminus=$ave-$stddev;
1072: $twominus=$ave-2.*$stddev;
1073: }
1074: #
1075: # This is now the real loop. Go through all entries, pick up what we need
1076: #
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: # 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
1082: # previous edits, but it counts as one entry
1083: my $posttime = $contrib{$idx.':timestamp'};
1084: if ($prevread <= $posttime) {
1085: $$newpostsflag = 1;
1086: }
1087: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
1088: my $origindex='0.';
1089: my $numoldver=0;
1090: if ($contrib{$idx.':replyto'}) {
1091: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1092: # this is a follow-up message
1093: $original[$idx]=$original[$contrib{$idx.':replyto'}];
1094: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
1095: $origindex=$index[$contrib{$idx.':replyto'}];
1096: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
1097: } else {
1098: $original[$idx]=0;
1099: $$depth[$idx]=0;
1100: }
1101: } else {
1102: # this is an original message
1103: $original[$idx]=0;
1104: $$depth[$idx]=0;
1105: }
1106: if ($$replies[$$depth[$idx]]) {
1107: $$replies[$$depth[$idx]]++;
1108: } else {
1109: $$replies[$$depth[$idx]]=1;
1110: }
1111: unless ((($hiddens{$idx}) && (!$seeid)) || ($deletions{$idx})) {
1112: $$visible++;
1113: if ($contrib{$idx.':history'}) {
1114: if ($contrib{$idx.':history'} =~ /:/) {
1115: my @oldversions = split(/:/,$contrib{$idx.':history'});
1116: $numoldver = @oldversions;
1117: } else {
1118: $numoldver = 1;
1119: }
1120: }
1121: $$current = $numoldver;
1122: my %messages = ();
1123: my %subjects = ();
1124: my %attachtxt = ();
1125: my %allattachments = ();
1126: my ($screenname,$plainname,$showaboutme);
1127: my $sender = &mt('Anonymous');
1128: # Anonymous users getting number within a discussion
1129: # Since idx is in static order, this should give the same sequence every time.
1130: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
1131: unless ($$anonhash{$key}) {
1132: $anoncnt++;
1133: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
1134: }
1135: my ($message,$subject,$vgrlink,$ctlink);
1136: &get_post_contents(\%contrib,$idx,$seeid,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,\$showaboutme,$numoldver);
1137:
1138:
1139: # Set up for sorting by subject
1140: unless ($outputtarget eq 'export') {
1141: $message=$messages{$numoldver};
1142: $message.=$attachtxt{$numoldver};
1143: $subject=$subjects{$numoldver};
1144: if ($message) {
1145: if ($hiddens{$idx}) {
1146: $message='<font color="#888888">'.$message.'</font>';
1147: if ($studenthidden) {
1148: $message .='<br /><br />Deleted by poster (student).';
1149: }
1150: }
1151:
1152: if ($subject eq '') {
1153: if (defined($$subjectsort{'__No subject'})) {
1154: push(@{$$subjectsort{'__No subject'}}, $idx);
1155: } else {
1156: @{$$subjectsort{'__No subject'}} = ("$idx");
1157: }
1158: } else {
1159: if (defined($$subjectsort{$subject})) {
1160: push(@{$$subjectsort{$subject}}, $idx);
1161: } else {
1162: @{$$subjectsort{$subject}} = ("$idx");
1163: }
1164: }
1165: if (!$contrib{$idx.':anonymous'} || $see_anonymous) {
1166: if ($showaboutme) {
1167: $sender = &Apache::loncommon::aboutmewrapper(
1168: $plainname,
1169: $contrib{$idx.':sendername'},
1170: $contrib{$idx.':senderdomain'});
1171: } else {
1172: $sender = $plainname;
1173: }
1174: if ($see_anonymous) {
1175: $sender .= ' ('.$contrib{$idx.':sendername'}.':'.
1176: $contrib{$idx.':senderdomain'}.')';
1177: }
1178: $sender = '<b>'.$sender.'</b>';
1179: if ($contrib{$idx.':anonymous'}) {
1180: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
1181: $screenname;
1182: }
1183: if ($see_anonymous) {
1184: $sender.=&Apache::loncommon::student_image_tag($contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1185: }
1186: # Set up for sorting by domain, then username
1187: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
1188: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
1189: }
1190: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
1191: push(@{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx);
1192: } else {
1193: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
1194: }
1195: # Set up for sorting by last name, then first name
1196: my %names = &Apache::lonnet::get('environment',
1197: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
1198: ,$contrib{$idx.':sendername'});
1199: my $lastname = $names{'lastname'};
1200: my $firstname = $names{'firstname'};
1201: if ($lastname eq '') {
1202: $lastname = '_';
1203: }
1204: if ($firstname eq '') {
1205: $firstname = '_';
1206: }
1207: unless (defined($$namesort{$lastname})) {
1208: %{$$namesort{$lastname}} = ();
1209: }
1210: if (defined($$namesort{$lastname}{$firstname})) {
1211: push(@{$$namesort{$lastname}{$firstname}}, $idx);
1212: } else {
1213: @{$$namesort{$lastname}{$firstname}} = ("$idx");
1214: }
1215: if ($outputtarget ne 'tex') {
1216: # Add karma stars
1217: my $karma=&userkarma($contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
1218: for (my $i=1;$i<=$karma;$i++) {
1219: $sender.='<img border="0" src="/res/adm/pages/star.gif" alt="'.&mt('Contributor Kudos').'" />';
1220: }
1221: # Can people edit this?
1222: if (&editing_allowed($escsymb.':::'.$idx,$group)) {
1223: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
1224: $sender.=' '.
1225: &discussion_link($symb,&mt('Edit'),'editdisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1226: unless ($seeid) {
1227: my $grpargs = &group_args($group);
1228: $sender.=" <a href=\"javascript:verifydelete('studentdelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')";
1229: $sender .= '">'.&mt('Delete').'</a>';
1230: }
1231: }
1232: }
1233: if ($seeid) {
1234: if ($hiddens{$idx}) {
1235: unless ($studenthidden) {
1236: $sender.=' '.
1237: &discussion_link($symb,&mt('Make Visible'),'unhide',$idx,$$newpostsflag,$prevread,&group_args($group));
1238: }
1239: } else {
1240: $sender.=' '.
1241: &discussion_link($symb,&mt('Hide'),'hide',$idx,$$newpostsflag,$prevread,&group_args($group));
1242: }
1243: my $grpargs = &group_args($group);
1244: $sender.=
1245: " <a href=\"javascript:verifydelete('seeiddelete','$escsymb','$idx','$$newpostsflag','$prevread','$grpargs')\">";
1246: $sender .= &mt('Delete').'</a>';
1247: }
1248: }
1249: } else {
1250: if ($screenname) {
1251: $sender='<i>'.$screenname.'</i>';
1252: } else {
1253: $sender='<i>'.$$anonhash{$key}.'</i>';
1254: }
1255: $sender = '<b>'.$sender.'</b>';
1256: # Set up for sorting by domain, then username for anonymous
1257: unless (defined($$usernamesort{'__anon'})) {
1258: %{$$usernamesort{'__anon'}} = ();
1259: }
1260: if (defined($$usernamesort{'__anon'}{'__anon'})) {
1261: push(@{$$usernamesort{'__anon'}{'__anon'}}, $idx);
1262: } else {
1263: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
1264: }
1265: # Set up for sorting by last name, then first name for anonymous
1266: unless (defined($$namesort{'__anon'})) {
1267: %{$$namesort{'__anon'}} = ();
1268: }
1269: if (defined($$namesort{'__anon'}{'__anon'})) {
1270: push(@{$$namesort{'__anon'}{'__anon'}}, $idx);
1271: } else {
1272: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
1273: }
1274: }
1275: if ($outputtarget ne 'tex') {
1276: if (&discussion_open($status)) {
1277: if (($group ne '') &&
1278: (&check_group_priv($group,'pgd') eq 'ok')) {
1279: $sender.=' '.
1280: &discussion_link($symb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread,&group_args($group));
1281: } elsif (&Apache::lonnet::allowed('pch',
1282: $env{'request.course.id'}.
1283: ($env{'request.course.sec'}?'/'.
1284: $env{'request.course.sec'}:''))) {
1285: $sender.=' '.
1286: &discussion_link($symb,&mt('Reply'),'replydisc',$idx,$$newpostsflag,$prevread);
1287: }
1288: }
1289: if ($viewgrades) {
1290: $vgrlink=&Apache::loncommon::submlink(&mt('Submissions'),
1291: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
1292: }
1293: if ($$dischash{$readkey}=~/\.$idx\./) {
1294: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
1295: } else {
1296: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
1297: }
1298: }
1299: }
1300: #figure out at what position this needs to print
1301: }
1302: if ($outputtarget eq 'export' || $message) {
1303: my $thisindex=$idx;
1304: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1305: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1306: }
1307: $$alldiscussion{$thisindex}=$idx;
1308: $$shown{$idx} = 0;
1309: $index[$idx]=$thisindex;
1310: }
1311: if ($outputtarget eq 'export') {
1312: %{$$imsitems{$idx}} = ();
1313: $$imsitems{$idx}{'isvisible'}='true';
1314: if ($hiddens{$idx}) {
1315: $$imsitems{$idx}{'isvisible'}='false';
1316: }
1317: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1318: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1319: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1320: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1321: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1322: $contrib{$idx.':sendername'}.':'.
1323: $contrib{$idx.':senderdomain'}.')';
1324: $$imsitems{$idx}{'isanonymous'}='false';
1325: if ($contrib{$idx.':anonymous'}) {
1326: $$imsitems{$idx}{'isanonymous'}='true';
1327: }
1328: $$imsitems{$idx}{'currversion'}=$numoldver;
1329: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1330: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1331: $$shown{$idx} = 1;
1332: }
1333: } else {
1334: if ($message) {
1335: my $spansize = 2;
1336: if ($showonlyunread && $prevread > $posttime) {
1337: $$notshown{$idx} = 1;
1338: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1339: $$notshown{$idx} = 1;
1340: } else {
1341: # apply filters
1342: my $uname = $contrib{$idx.':sendername'};
1343: my $udom = $contrib{$idx.':senderdomain'};
1344: my $poster = $uname.':'.$udom;
1345: if ($env{'form.totposters'} ne '') {
1346: if ($totposters == 0) {
1347: $$shown{$idx} = 0;
1348: } elsif ($totposters > 0) {
1349: if (grep/^$poster$/,@{$posters}) {
1350: $$shown{$idx} = 1;
1351: }
1352: }
1353: } elsif ($sortposts) {
1354: if ($skiptest) {
1355: $$shown{$idx} = 1;
1356: } else {
1357: foreach my $role (@{$$roleinfo{$poster}}) {
1358: if ($role =~ /^cc:/) {
1359: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1360: if ($role =~ /$cc_regexp/) {
1361: $$shown{$idx} = 1;
1362: last;
1363: }
1364: } elsif ($role =~ /^$rolematch$/) {
1365: $$shown{$idx} = 1;
1366: last;
1367: }
1368: }
1369: }
1370: if ($$shown{$idx} && !$skip_group_check) {
1371: my $showflag = 0;
1372: if (ref($$classgroups{$poster}{active}) eq 'HASH') {
1373: foreach my $grp (@{$grouppick}) {
1374: if (grep/^\Q$grp\E$/,
1375: keys(%{$$classgroups{$poster}{active}})) {
1376: $showflag = 1;
1377: last;
1378: }
1379: }
1380: }
1381: if ($showflag) {
1382: $$shown{$idx} = 1;
1383: } else {
1384: $$shown{$idx} = 0;
1385: }
1386: }
1387: } else {
1388: $$shown{$idx} = 1;
1389: }
1390: }
1391: unless ($$notshown{$idx} == 1) {
1392: if ($prevread > 0 && $prevread <= $posttime) {
1393: $$newitem{$idx} = 1;
1394: $$discussionitems[$idx] .= '<font color="#FF0000"><b>'.&mt('NEW').' </b></font>';
1395: } else {
1396: $$newitem{$idx} = 0;
1397: }
1398: $$discussionitems[$idx] .= '<b>'.$subject.'</b> '.
1399: $sender.' '.$vgrlink.' ('.
1400: &Apache::lonlocal::locallocaltime($posttime).')';
1401: if ($$dischash{$toggkey}) {
1402: $$discussionitems[$idx].=' '.$ctlink;
1403: }
1404: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1405: my $likesize="100";
1406: if ($seeid || $canvote) {
1407: # Figure out size based on likes
1408: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1409: if ($thislikes>$twoplus) {
1410: $likesize="200";
1411: } elsif ($thislikes>$oneplus) {
1412: $likesize="150";
1413: }
1414: if ($thislikes<$twominus) {
1415: $likesize="50";
1416: } elsif ($thislikes<$oneminus) {
1417: $likesize="75";
1418: }
1419: }
1420: # Actually glue in the message itself
1421: $$discussionitems[$idx].= '<br /><blockquote>'.
1422: "<div style='font-size:$likesize%'>".
1423: $message.
1424: '</div></blockquote>';
1425: if ($canvote) {
1426: # Put in the like and unlike buttons
1427: if ($userlikes{$idx}) {
1428: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsup_gray.png" alt="'.&mt('You like this posting').'" />';
1429: } else {
1430: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsup.png" alt="'.&mt('Like').'" />','like',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Like this posting"));
1431: }
1432: if ($userunlikes{$idx}) {
1433: $$discussionitems[$idx].='<img border="0" src="/res/adm/pages/thumbsdown_gray.png" alt="'.&mt('You unlike this posting').'" />';
1434: } else {
1435: $$discussionitems[$idx].=' '.&discussion_link($symb,'<img border="0" src="/res/adm/pages/thumbsdown.png" alt="'.&mt('Unlike').'" />','unlike',$idx,$$newpostsflag,$prevread,&group_args($group),&mt("Unlike this posting"));
1436: }
1437: }
1438: if ($seeid || $canvote) {
1439: my $thislikes=$likes{$symb.':'.$idx.':likes'};
1440: if ($thislikes>0) {
1441: $$discussionitems[$idx].=' ('.&mt("[_1] likes",$thislikes).')';
1442: } elsif ($thislikes<0) {
1443: $$discussionitems[$idx].=' ('.&mt("[_1] unlikes",abs($thislikes)).')';
1444: }
1445: }
1446: # If there is any history to this post, inform the reader
1447: if ($contrib{$idx.':history'}) {
1448: my @postversions = ();
1449: $$discussionitems[$idx] .= ' '.&mt('This post has been edited by the author.');
1450: if ($seeid) {
1451: $$discussionitems[$idx] .= ' '.
1452: &discussion_link($symb,&mt('Display all versions'),'allversions',$idx,$$newpostsflag,$prevread,&group_args($group));
1453: }
1454: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1455: if ($contrib{$idx.':history'} =~ m/:/) {
1456: @postversions = split(/:/,$contrib{$idx.':history'});
1457: } else {
1458: @postversions = ("$contrib{$idx.':history'}");
1459: }
1460: for (my $i=0; $i<@postversions; $i++) {
1461: my $version = $i+1;
1462: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1463: }
1464: }
1465: # end of unless ($$notshown ...)
1466: }
1467: # end of if ($message) ...
1468: }
1469: # end of the else-branch of target being export
1470: }
1471: # end of unless hidden or deleted
1472: }
1473: # end of the loop over all discussion entries
1474: }
1475: # end of "if there actually are any discussions
1476: }
1477: # end of subroutine "build_posting_display"
1478: }
1479:
1480: sub filter_regexp {
1481: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1482: my ($roleregexp,$secregexp,$statusregexp);
1483: my $skiptest = 1;
1484: if (@{$rolefilter} > 0) {
1485: my @okrolefilter = ();
1486: foreach my $role (@{$rolefilter}) {
1487: unless ($role eq '') {
1488: push(@okrolefilter, $role);
1489: }
1490: }
1491: if (@okrolefilter > 0) {
1492: if (grep/^all$/,@okrolefilter) {
1493: $roleregexp='[^:]+';
1494: } else {
1495: if (@okrolefilter == 1) {
1496: $roleregexp=$okrolefilter[0];
1497: } else {
1498: $roleregexp='('.join('|',@okrolefilter).')';
1499: }
1500: $skiptest = 0;
1501: }
1502: }
1503: }
1504: if (@{$sectionpick} > 0) {
1505: my @oksectionpick = ();
1506: foreach my $sec (@{$sectionpick}) {
1507: unless ($sec eq '') {
1508: push(@oksectionpick, $sec);
1509: }
1510: }
1511: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1512: if (@oksectionpick == 1) {
1513: $secregexp = $oksectionpick[0];
1514: } else {
1515: $secregexp .= '('.join('|',@oksectionpick).')';
1516: }
1517: $skiptest = 0;
1518: } else {
1519: $secregexp .= '[^:]*';
1520: }
1521: }
1522:
1523: if (defined($statusfilter) && $statusfilter ne '') {
1524: if ($statusfilter eq 'all') {
1525: $statusregexp = '[^:]+';
1526: } else {
1527: $statusregexp = $statusfilter;
1528: $skiptest = 0;
1529: }
1530: }
1531: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1532: }
1533:
1534:
1535: sub get_post_contents {
1536: my ($contrib,$idx,$seeid,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$showaboutme,$numver) = @_;
1537: my $discussion = '';
1538: my $start=$numver;
1539: my $end=$numver + 1;
1540: %{$$imsfiles{$idx}}=();
1541: if ($type eq 'allversions') {
1542: unless($seeid) {
1543: $discussion=&mt('You do not have privileges to view all versions of posts.').' '.&mt('Please select a different role.');
1544: return $discussion;
1545: }
1546: }
1547: # $$screenname=&Apache::loncommon::screenname(
1548: # $$contrib{$idx.':sendername'},
1549: # $$contrib{$idx.':senderdomain'});
1550: $$plainname=&Apache::loncommon::nickname(
1551: $$contrib{$idx.':sendername'},
1552: $$contrib{$idx.':senderdomain'});
1553: $$screenname=$$contrib{$idx.':screenname'};
1554: $$showaboutme = &Apache::lonnet::usertools_access($$contrib{$idx.':sendername'},
1555: $$contrib{$idx.':senderdomain'},
1556: 'aboutme');
1557: my $sender = $$plainname;
1558: if ($$showaboutme) {
1559: $sender = &Apache::loncommon::aboutmewrapper(
1560: $$plainname,
1561: $$contrib{$idx.':sendername'},
1562: $$contrib{$idx.':senderdomain'});
1563: }
1564: if ($seeid) {
1565: $sender .= ' ('.$$contrib{$idx.':sendername'}.':'.
1566: $$contrib{$idx.':senderdomain'}.')';
1567: }
1568: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1569: my @postversions = ();
1570: if ($type eq 'allversions' || $type eq 'export') {
1571: $start = 0;
1572: if ($$contrib{$idx.':history'}) {
1573: @postversions = split(/:/,$$contrib{$idx.':history'});
1574: }
1575: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1576: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1577: push(@postversions,$$contrib{$idx.':timestamp'});
1578: $end = @postversions;
1579: } else {
1580: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1581: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1582: }
1583:
1584: if ($$contrib{$idx.':anonymous'}) {
1585: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1586: }
1587: if ($type eq 'allversions') {
1588: $discussion=('<b>'.$sender.'</b><br /><ul>');
1589: }
1590: for (my $i=$start; $i<$end; $i++) {
1591: my ($timesent,$attachmsg);
1592: my %currattach = ();
1593: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1594: unless (&contains_block_html($messages->{$i})) {
1595: &newline_to_br(\$messages->{$i});
1596: }
1597: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1598: $$subjects{$i}=~s/\n/\<br \/\>/g;
1599: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1600: if ($attachmenturls) {
1601: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1602: }
1603: if ($type eq 'export') {
1604: $$imsfiles{$idx}{$i} = '';
1605: if ($attachmsg) {
1606: $$attachtxt{$i} = '<br />'.&mt('Attachments').':<br />';
1607: foreach my $key (sort(keys(%currattach))) {
1608: if ($$allattachments{$key}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1609: my $fname = $1.$3.'/'.$4;
1610: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'" />'."\n";
1611: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1612: }
1613: }
1614: }
1615: } else {
1616: if ($attachmsg) {
1617: $$attachtxt{$i} = '<br />'.&mt('Attachments').':'.$attachmsg.'<br />';
1618: } else {
1619: $$attachtxt{$i} = '';
1620: }
1621: }
1622: if ($type eq 'allversions') {
1623: $discussion.= <<"END";
1624: <li><b>$$subjects{$i}</b>, $timesent<br />
1625: $$messages{$i}<br />
1626: $$attachtxt{$i}</li>
1627: END
1628: }
1629: }
1630: if ($type eq 'allversions') {
1631: $discussion.='</ul>';
1632: return $discussion;
1633: } else {
1634: return;
1635: }
1636: }
1637:
1638: sub replicate_attachments {
1639: my ($attachrefs,$tempexport) = @_;
1640: my $response;
1641: foreach my $id (keys(%{$attachrefs})) {
1642: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1643: my $path = $tempexport;
1644: my $tail = $1.'/'.$2.$4;
1645: my @extras = split(/\//,$tail);
1646: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1647: if (!-e $destination) {
1648: my $i= 0;
1649: while ($i<@extras) {
1650: $path .= '/'.$extras[$i];
1651: if (!-e $path) {
1652: mkdir($path,0700);
1653: }
1654: $i ++;
1655: }
1656: my ($content,$rtncode);
1657: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1658: if ($uploadreply eq 'ok') {
1659: my $attachcopy;
1660: if ($attachcopy = Apache::File->new('>'.$destination)) {
1661: print $attachcopy $content;
1662: close($attachcopy);
1663: } else {
1664: $response .= &mt('Error copying file attachment - [_1] to IMS package',$5).': '.$!.'<br />'."\n";
1665: }
1666: } else {
1667: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1668: $response .= &mt('Error copying file attachment - [_1] to IMS package: ',$5).$rtncode.'<br />'."\n";
1669: }
1670: }
1671: }
1672: }
1673: return $response;
1674: }
1675:
1676: sub mail_screen {
1677: my ($r,$feedurl,$options,$caller_symb,$attachmaxtext) = @_;
1678: if (exists($env{'form.origpage'})) {
1679: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog','group','ref']);
1680: }
1681:
1682: my %lt = &Apache::lonlocal::texthash(
1683: 'myqu' => 'Question/comment/feedback:',
1684: 'title' => 'Title',
1685: 'reta' => 'Retained attachments',
1686: 'atta' => 'Attachment',
1687: );
1688: if($env{'form.editdisc'} || $env{'form.replydisc'}){
1689: %lt = &Apache::lonlocal::texthash(
1690: 'myqu' => 'Post Discussion',
1691: );
1692: }
1693: my $restitle = &get_resource_title($caller_symb,$feedurl);
1694: my $quote='';
1695: my $subject = '';
1696: my $comment = '';
1697: my $prevtag = '';
1698: my $parentmsg = '';
1699: my ($symb,$idx,$attachmenturls);
1700: my $numoldver = 0;
1701: my $attachmsg = '';
1702: my $newattachmsg = '';
1703: my @currnewattach = ();
1704: my @currdelold = ();
1705: my @keepold = ();
1706: my %attachments = ();
1707: my %currattach = ();
1708: my $attachnum = 0;
1709: my $anonchk = (<<END);
1710: function anonchk() {
1711: for (var i=0; i < document.mailform.discuss.length; i++) {
1712: if (document.mailform.discuss[i].checked) {
1713: document.attachment.discuss.value =
1714: document.mailform.discuss[i].value;
1715: }
1716: }
1717: if (document.mailform.blog.checked) {
1718: document.attachment.blog.value = 1;
1719: }
1720: return
1721: }
1722: END
1723: my $anonscript;
1724: if (exists($env{'form.origpage'})) {
1725: $anonscript = (<<END);
1726: function setposttype() {
1727: var disc = "$env{'form.discuss'}";
1728: for (var i=0; i < document.mailform.discuss.length; i++) {
1729: if (disc == document.mailform.discuss[i].value) {
1730: document.mailform.discuss[i].checked = 1;
1731: }
1732: }
1733: var blog = "$env{'form.blog'}";
1734: if (blog == 1) {
1735: document.mailform.blog.checked=1;
1736: }
1737: return
1738: }
1739: END
1740: } else {
1741: $anonscript = (<<END);
1742: function setposttype() {
1743: return
1744: }
1745: END
1746: }
1747: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1748: if ($env{'form.replydisc'}) {
1749: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1750: } else {
1751: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1752: }
1753: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1754: $env{'course.'.$env{'request.course.id'}.'.domain'},
1755: $env{'course.'.$env{'request.course.id'}.'.num'});
1756: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1757: if ($contrib{$idx.':history'}) {
1758: if ($contrib{$idx.':history'} =~ /:/) {
1759: my @oldversions = split(/:/,$contrib{$idx.':history'});
1760: $numoldver = @oldversions;
1761: } else {
1762: $numoldver = 1;
1763: }
1764: }
1765: if ($env{'form.replydisc'}) {
1766: if ($contrib{$idx.':history'}) {
1767: if ($contrib{$idx.':history'} =~ /:/) {
1768: my @oldversions = split(/:/,$contrib{$idx.':history'});
1769: $numoldver = @oldversions;
1770: } else {
1771: $numoldver = 1;
1772: }
1773: }
1774: if ($idx > 0) {
1775: my %msgversions = ();
1776: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1777: $quote = $msgversions{$numoldver};
1778: }
1779: if ($idx > 0) {
1780: my %subversions = ();
1781: &get_post_versions(\%subversions,$contrib{$idx.':subject'},1,$numoldver);
1782: $subject = &mt('Re: ').$subversions{$numoldver};
1783: }
1784: $subject = &HTML::Entities::encode($subject,'<>&"');
1785: } else {
1786: $attachmenturls = $contrib{$idx.':attachmenturl'};
1787: if ($idx > 0) {
1788: my %msgversions = ();
1789: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1790: $comment = $msgversions{$numoldver};
1791: my %subversions = ();
1792: &get_post_versions(\%subversions,$contrib{$idx.':subject'},0,$numoldver);
1793: $subject = $subversions{$numoldver};
1794: }
1795: if (defined($contrib{$idx.':replyto'})) {
1796: $parentmsg = $contrib{$idx.':replyto'};
1797: }
1798: unless (exists($env{'form.origpage'})) {
1799: my $anonflag = 'nonanon';
1800: if ($contrib{$idx.':anonymous'}) {
1801: $anonflag = 'anon';
1802: }
1803: $anonscript = (<<END);
1804: function setposttype () {
1805: var currtype = "$anonflag";
1806: for (var i=0; i<document.mailform.discuss.length; i++) {
1807: if (document.mailform.elements.discuss[i].value == currtype ) {
1808: document.mailform.elements.discuss[i].checked=1;
1809: }
1810: }
1811: return
1812: }
1813: END
1814: }
1815: }
1816: }
1817: if ($env{'form.previous'}) {
1818: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1819: }
1820: }
1821:
1822: if ($env{'form.origpage'}) {
1823: $subject = &unescape($env{'form.subject'});
1824: $comment = &unescape($env{'form.comment'});
1825: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1826: }
1827: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet(undef,undef,1,($env{'form.modal'}?'popup':0));
1828: my $send=&mt('Send');
1829: my $alert = &mt('Please select a feedback type.');
1830: my $js= <<END;
1831: <script type="text/javascript">
1832: //<!--
1833: function gosubmit() {
1834: var rec=0;
1835: if (typeof(document.mailform.elements.discuss)!="undefined") {
1836: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1837: if (document.mailform.elements.discuss.checked ) {
1838: rec=1;
1839: }
1840: } else {
1841: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1842: if (document.mailform.elements.discuss[i].checked ) {
1843: rec=1;
1844: }
1845: }
1846: }
1847: }
1848: if (typeof(document.mailform.elements.blog)!="undefined") {
1849: if (document.mailform.elements.blog.checked) {
1850: rec=1;
1851: }
1852: }
1853:
1854: if (rec) {
1855: if (typeof(document.mailform.onsubmit)=='function') {
1856: document.mailform.onsubmit();
1857: }
1858: document.mailform.submit();
1859: } else {
1860: alert('$alert');
1861: }
1862: }
1863: $anonchk
1864: $anonscript
1865: //-->
1866: </script>
1867: END
1868:
1869: my ($textareaheader,$textareaclass);
1870: if (&Apache::lonhtmlcommon::htmlareabrowser()) {
1871: $textareaheader = &Apache::lonhtmlcommon::htmlareaselectactive();
1872: $textareaclass = 'class="LC_richDefaultOff"';
1873: if ($env{'request.course.id'}) {
1874: unless (($env{'course.'.$env{'request.course.id'}.'.allow_limited_html_in_feedback'} =~ /^\s*yes\s*$/i) || ($env{'form.sendmessageonly'})) {
1875: undef($textareaclass);
1876: }
1877: }
1878: }
1879:
1880: # Breadcrumbs
1881: my $brcrum = [{'href' => '',
1882: 'text' => 'Resource Feedback and Discussion'}];
1883:
1884: my %onload = ('onload' => 'window.focus();setposttype();');
1885: my %parms=('add_entries' => \%onload);
1886: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
1887: my $start_page=
1888: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,\%parms);
1889:
1890: if ($quote ne '') {
1891: $quote = &HTML::Entities::decode($quote);
1892: unless (&contains_block_html($quote)) {
1893: &newline_to_br(\$quote);
1894: }
1895: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($quote).'</blockquote>';
1896: }
1897: my $header='';
1898: unless ($env{'form.modal'}) {
1899: $header="<h2><tt>$restitle</tt></h2>";
1900: }
1901: $r->print(<<END);
1902: $start_page
1903: <h1>$lt{'myqu'}</h1>
1904: $header
1905: <form action="/adm/feedback" method="post" name="mailform"
1906: enctype="multipart/form-data">
1907: $prevtag
1908: <input type="hidden" name="postdata" value="$feedurl" />
1909: <input type="hidden" name="modal" value="$env{'form.modal'}" />
1910: END
1911: if ($env{'form.replydisc'}) {
1912: $r->print(<<END);
1913: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
1914: END
1915: } elsif ($env{'form.editdisc'}) {
1916: $r->print(<<END);
1917: <input type="hidden" name="editdisc" value="$env{'form.editdisc'}" />
1918: <input type="hidden" name="parentmsg" value="$parentmsg" />
1919: END
1920: }
1921: $r->print(<<END);
1922: $options
1923: $quote
1924: <p>
1925: $textareaheader
1926: </p>
1927: <br>
1928: <p>
1929: $latexHelp
1930: </p>
1931: <p>
1932: END
1933:
1934: $r->print(&Apache::lonhtmlcommon::start_pick_box());
1935: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
1936: $r->print('<input type="text" name="subject" size="30" value="'."$subject".'" /></p>');
1937: $r->print(&Apache::lonhtmlcommon::row_closure());
1938: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Message')));
1939: $r->print('<textarea name="comment" id="comment" cols="60" rows="10" $textareaclass>'."$comment".
1940: '</textarea>');
1941: $r->print(&Apache::lonhtmlcommon::row_closure(1));
1942: $r->print(&Apache::lonhtmlcommon::end_pick_box());
1943:
1944: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
1945: if ($env{'form.origpage'}) {
1946: foreach my $attach (@currnewattach) {
1947: $r->print('<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n");
1948: }
1949: foreach my $oldatt (@currdelold) {
1950: $r->print('<input type="hidden" name="deloldattach" value="'.$oldatt.'" />'."\n");
1951: }
1952: }
1953: if ($env{'form.editdisc'}) {
1954: if ($attachmenturls) {
1955: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
1956: $attachnum = scalar(keys(%currattach));
1957: foreach my $key (keys(%currattach)) {
1958: $r->print('<input type="hidden" name="keepold" value="'.$key.'" />'."\n");
1959: }
1960: }
1961: }
1962: } else {
1963: $r->print(<<END);
1964: <p>
1965: $lt{'atta'} $attachmaxtext: <input type="file" name="attachment" />
1966: </p>
1967: END
1968: }
1969: if (exists($env{'form.group'})) {
1970: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
1971: }
1972: if (exists($env{'form.ref'})) {
1973: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
1974: }
1975: $r->print(<<END);
1976: <p>
1977: <input type="hidden" name="sendit" value="1" />
1978: <input type="button" value="$send" onclick='gosubmit();' />
1979: </p>
1980: </form>
1981: END
1982: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
1983: my $now = time;
1984: my $ressymb = $symb;
1985: &Apache::lonenc::check_encrypt(\$ressymb);
1986: my $postidx = '';
1987: if ($env{'form.editdisc'}) {
1988: $postidx = $idx;
1989: }
1990: if (@currnewattach > 0) {
1991: $attachnum += @currnewattach;
1992: }
1993: my $blockblog = &Apache::loncommon::blocking_status('blogs');
1994: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver,'',$blockblog));
1995: if ($attachnum > 0) {
1996: if (@currnewattach > 0) {
1997: $newattachmsg .= '<br /><b>'.&mt('New attachments').'</b><br />';
1998: if (@currnewattach > 1) {
1999: $newattachmsg .= '<ol>';
2000: foreach my $item (@currnewattach) {
2001: $item =~ m#.*/([^/]+)$#;
2002: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
2003: }
2004: $newattachmsg .= '</ol>'."\n";
2005: } else {
2006: $currnewattach[0] =~ m#.*/([^/]+)$#;
2007: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
2008: }
2009: }
2010: if ($attachmsg) {
2011: $r->print("<br /><b>$lt{'reta'}</b>:$attachmsg<br />\n");
2012: }
2013: if ($newattachmsg) {
2014: $r->print("$newattachmsg<br />");
2015: }
2016: }
2017: }
2018: $r->print(&generate_preview_button().
2019: &Apache::loncommon::end_page());
2020:
2021: }
2022:
2023: sub print_display_options {
2024: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
2025: &Apache::loncommon::content_type($r,'text/html');
2026: $r->send_http_header;
2027:
2028: my $function = &Apache::loncommon::get_users_function();
2029: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2030: $env{'user.domain'});
2031:
2032: my %lt = &Apache::lonlocal::texthash(
2033: 'pref' => 'Display Preference',
2034: 'curr' => 'Current setting ',
2035: 'actn' => 'Action',
2036: 'deff' => 'Default for all discussions',
2037: 'prca' => 'Preferences can be set for this discussion that determine ....',
2038: 'whpo' => 'Which posts are displayed when you display this discussion board or resource, and',
2039: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
2040: 'wipa' => 'Whether individual posts can be marked as read/unread',
2041: 'allposts' => 'All posts',
2042: 'unread' => 'New posts only',
2043: 'unmark' => 'Posts not marked read',
2044: 'ondisp' => 'Once displayed',
2045: 'onmark' => 'Once marked not NEW',
2046: 'toggon' => 'Shown',
2047: 'toggoff' => 'Not shown',
2048: 'disa' => 'Posts displayed?',
2049: 'npmr' => 'New posts cease to be identified as "NEW"?',
2050: 'dotm' => 'Option to mark each post as read/unread?',
2051: 'chgt' => 'Change to ',
2052: 'mkdf' => 'Set to ',
2053: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
2054: 'ywbr' => 'You will be returned to the previous page if you click OK.'
2055: );
2056:
2057: my $dispchangeA = $lt{'unread'};
2058: my $dispchangeB = $lt{'unmark'};
2059: my $markchange = $lt{'ondisp'};
2060: my $toggchange = $lt{'toggon'};
2061: my $currdisp = $lt{'allposts'};
2062: my $currmark = $lt{'onmark'};
2063: my $discdisp = 'allposts';
2064: my $discmark = 'onmark';
2065: my $currtogg = $lt{'toggoff'};
2066: my $disctogg = 'toggoff';
2067:
2068: if ($dispchgA eq 'allposts') {
2069: $dispchangeA = $lt{'allposts'};
2070: $currdisp = $lt{'unread'};
2071: $discdisp = 'unread';
2072: }
2073:
2074: if ($markchg eq 'markonread') {
2075: $markchange = $lt{'onmark'};
2076: $currmark = $lt{'ondisp'};
2077: $discmark = 'ondisp';
2078: }
2079:
2080: if ($dispchgB eq 'onlyunread') {
2081: $dispchangeB = $lt{'unread'};
2082: $currdisp = $lt{'unmark'};
2083: $discdisp = 'unmark';
2084: }
2085: if ($toggchg eq 'toggoff') {
2086: $toggchange = $lt{'toggoff'};
2087: $currtogg = $lt{'toggon'};
2088: $disctogg = 'toggon';
2089: }
2090:
2091: my $js = <<END;
2092: <script type="text/javascript">
2093: function discdispChk(caller) {
2094: var disctogg = '$toggchg'
2095: if (caller == 0) {
2096: if (document.modifydisp.discdisp[0].checked == true) {
2097: if (document.modifydisp.discdisp[1].checked == true) {
2098: document.modifydisp.discdisp[1].checked = false
2099: }
2100: }
2101: }
2102: if (caller == 1) {
2103: if (document.modifydisp.discdisp[1].checked == true) {
2104: if (document.modifydisp.discdisp[0].checked == true) {
2105: document.modifydisp.discdisp[0].checked = false
2106: }
2107: if (disctogg == 'toggon') {
2108: document.modifydisp.disctogg.checked = true
2109: }
2110: if (disctogg == 'toggoff') {
2111: document.modifydisp.disctogg.checked = false
2112: }
2113: }
2114: }
2115: if (caller == 2) {
2116: var dispchgB = '$dispchgB'
2117: if (disctogg == 'toggoff') {
2118: if (document.modifydisp.disctogg.checked == true) {
2119: if (dispchgB == 'onlyunmark') {
2120: document.modifydisp.discdisp[1].checked = false
2121: }
2122: }
2123: }
2124: }
2125: }
2126:
2127: function setDisp() {
2128: var prev = "$previous"
2129: var chktotal = 0
2130: if (document.modifydisp.discdisp[0].checked == true) {
2131: document.modifydisp.$dispchgA.value = "$symb"
2132: chktotal ++
2133: }
2134: if (document.modifydisp.discdisp[1].checked == true) {
2135: document.modifydisp.$dispchgB.value = "$symb"
2136: chktotal ++
2137: }
2138: if (document.modifydisp.discmark.checked == true) {
2139: document.modifydisp.$markchg.value = "$symb"
2140: chktotal ++
2141: }
2142: if (document.modifydisp.disctogg.checked == true) {
2143: document.modifydisp.$toggchg.value = "$symb"
2144: chktotal ++
2145: }
2146: if (chktotal > 0) {
2147: document.modifydisp.submit()
2148: } else {
2149: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
2150: if (prev > 0) {
2151: location.href = "$feedurl?previous=$previous"
2152: } else {
2153: location.href = "$feedurl"
2154: }
2155: }
2156: }
2157: }
2158: </script>
2159: END
2160:
2161:
2162: my $start_page =
2163: &Apache::loncommon::start_page('Discussion display options',$js);
2164: my $end_page =
2165: &Apache::loncommon::end_page();
2166: $r->print(<<END);
2167: $start_page
2168: <form name="modifydisp" method="post" action="/adm/feedback">
2169: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
2170: <br />
2171: END
2172: $r->print(&Apache::loncommon::start_data_table());
2173: $r->print(<<END);
2174: <tr>
2175: <th>$lt{'pref'}</td>
2176: <th>$lt{'curr'}</td>
2177: <th>$lt{'actn'}?</td>
2178: </tr>
2179: END
2180: $r->print(&Apache::loncommon::start_data_table_row());
2181: $r->print(<<END);
2182: <td>$lt{'disa'}</td>
2183: <td>$lt{$discdisp}</td>
2184: <td><label><input type="checkbox" name="discdisp" onclick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
2185: <br />
2186: <label><input type="checkbox" name="discdisp" onclick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
2187: </td>
2188: END
2189: $r->print(&Apache::loncommon::end_data_table_row());
2190: $r->print(&Apache::loncommon::start_data_table_row());
2191: $r->print(<<END);
2192: <td>$lt{'npmr'}</td>
2193: <td>$lt{$discmark}</td>
2194: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
2195: END
2196: $r->print(&Apache::loncommon::end_data_table_row());
2197: $r->print(&Apache::loncommon::start_data_table_row());
2198: $r->print(<<END);
2199: <td>$lt{'dotm'}</td>
2200: <td>$lt{$disctogg}</td>
2201: <td><label><input type="checkbox" name="disctogg" onclick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
2202: END
2203: my $save = &mt('Save');
2204: $r->print(&Apache::loncommon::end_data_table_row());
2205: $r->print(&Apache::loncommon::end_data_table());
2206: $r->print(<<END);
2207: <br />
2208: <br />
2209: <input type="hidden" name="symb" value="$symb" />
2210: <input type="hidden" name="previous" value="$previous" />
2211: <input type="hidden" name="$dispchgA" value="" />
2212: <input type="hidden" name="$dispchgB" value="" />
2213: <input type="hidden" name="$markchg" value="" />
2214: <input type="hidden" name="$toggchg" value="" />
2215: <input type="button" name="sub" value="$save" onclick="javascript:setDisp()" />
2216: END
2217: if (exists($env{'form.group'})) {
2218: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2219: }
2220: if (exists($env{'form.ref'})) {
2221: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2222: }
2223: $r->print("
2224: <br />
2225: <br />
2226: </form>
2227: $end_page
2228: ");
2229: return;
2230: }
2231:
2232: sub print_sortfilter_options {
2233: my ($r,$symb,$previous,$feedurl) = @_;
2234:
2235: &Apache::loncommon::content_type($r,'text/html');
2236: $r->send_http_header;
2237:
2238: &Apache::lonenc::check_encrypt(\$symb);
2239: my @sections;
2240: my $section_sel = '';
2241: my $numvisible = 5;
2242: my @groups;
2243: my $group_sel = '';
2244: my $numgroupvis = 5;
2245: my %sectioncount = &Apache::loncommon::get_sections();
2246: my @courseroles = qw(st ad ep ta in);
2247: my $crstype = &Apache::loncommon::course_type();
2248: my $ccrole = 'cc';
2249: if ($crstype eq 'Community') {
2250: $ccrole = 'co';
2251: }
2252: push(@courseroles,$ccrole);
2253:
2254: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
2255: @sections = ('all',$env{'request.course.sec'});
2256: $numvisible = 2;
2257: } else {
2258: @sections = sort {$a cmp $b} keys(%sectioncount);
2259: if (scalar(@sections) < 4) {
2260: $numvisible = scalar(@sections) + 1;
2261: }
2262: unshift(@sections,'all'); # Put 'all' at the front of the list
2263:
2264: }
2265: foreach my $sec (@sections) {
2266: $section_sel .= " <option value=\"$sec\">$sec</option>\n";
2267: }
2268:
2269: if (&check_group_priv() eq 'ok') {
2270: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2271: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2272: my %curr_groups = &Apache::longroup::coursegroups($cdom,$cnum);
2273: @groups = sort {$a cmp $b} keys(%curr_groups);
2274: if (scalar(@groups) < 4) {
2275: $numgroupvis = scalar(@groups) + 1;
2276: }
2277: unshift(@groups,'all'); # Put 'all' at the front of the list
2278: } else {
2279: my @coursegroups = split(/:/,$env{'request.course.groups'});
2280: if (@coursegroups > 0) {
2281: @coursegroups = sort {$a cmp $b} @coursegroups;
2282: @groups = ('all',@coursegroups);
2283: if (scalar(@groups) < 4) {
2284: $numgroupvis = scalar(@groups) + 1;
2285: }
2286: } else {
2287: @groups = ('all');
2288: $numgroupvis = 1;
2289: }
2290: }
2291: foreach my $group (@groups) {
2292: $group_sel .= " <option value=\"$group\">$group</option>\n";
2293: }
2294:
2295: my $function = &Apache::loncommon::get_users_function();
2296: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
2297: $env{'user.domain'});
2298: my %lt = &Apache::lonlocal::texthash(
2299: 'diop' => 'Display Options',
2300: 'curr' => 'Current setting ',
2301: 'actn' => 'Action',
2302: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
2303: 'soor' => 'Sort order',
2304: 'spur' => 'Specific user roles',
2305: 'sprs' => 'Specific role status',
2306: 'spse' => 'Specific sections',
2307: 'spgr' => 'Specific groups',
2308: 'psub' => 'Pick specific users (by name)',
2309: 'shal' => 'Show a list of current posters',
2310: 'stor' => 'Save changes',
2311: );
2312:
2313: my %sort_types = ();
2314: my %role_types = ();
2315: my %status_types = ();
2316: &sort_filter_names(\%sort_types,\%role_types,\%status_types,$crstype);
2317:
2318: my $js = <<END;
2319: <script type="text/javascript">
2320: function verifyFilter() {
2321: var rolenum = 0
2322: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
2323: if (document.modifyshown.rolefilter.options[i].selected == true) {
2324: rolenum ++
2325: }
2326: }
2327: if (rolenum == 0) {
2328: document.modifyshown.rolefilter.options[0].selected = true
2329: }
2330:
2331: var secnum = 0
2332: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
2333: if (document.modifyshown.sectionpick.options[i].selected == true) {
2334: secnum ++
2335: }
2336: }
2337: if (secnum == 0) {
2338: document.modifyshown.sectionpick.options[0].selected = true
2339: }
2340:
2341: var grpnum = 0
2342: for (var i=0; i<document.modifyshown.grouppick.length; i++) {
2343: if (document.modifyshown.grouppick.options[i].selected == true) {
2344: grpnum ++
2345: }
2346: }
2347: if (grpnum == 0) {
2348: document.modifyshown.grouppick.options[0].selected = true
2349: }
2350:
2351: document.modifyshown.submit();
2352: }
2353: </script>
2354: END
2355:
2356: my $start_page=
2357: &Apache::loncommon::start_page('Discussion options',$js);
2358: my $end_page=
2359: &Apache::loncommon::end_page();
2360:
2361: $r->print(<<END);
2362: $start_page
2363: <form name="modifyshown" method="post" action="/adm/feedback">
2364: <b>$lt{'diso'}</b><br/> $lt{'prca'}
2365: <br />
2366: <table border="0">
2367: <tr>
2368: <th>$lt{'soor'}</th>
2369: <th> </th>
2370: <th>$lt{'sprs'}</th>
2371: <th> </th>
2372: <th>$lt{'spur'}</th>
2373: <th> </th>
2374: <th>$lt{'spse'}</th>
2375: <th> </th>
2376: <th>$lt{'spgr'}</th>
2377: <th> </th>
2378: <th>$lt{'psub'}</th>
2379: </tr>
2380: <tr>
2381: <td align="center" valign="top">
2382: <select name="sortposts">
2383: <option value="ascdate" selected="selected">$sort_types{'ascdate'}</option>
2384: <option value="descdate">$sort_types{'descdate'}</option>
2385: <option value="thread">$sort_types{'thread'}</option>
2386: <option value="subject">$sort_types{'subject'}</option>
2387: <option value="username">$sort_types{'username'}</option>
2388: <option value="lastfirst">$sort_types{'lastfirst'}</option>
2389: </select>
2390: </td>
2391: <td> </td>
2392: <td align="center" valign="top">
2393: <select name="statusfilter">
2394: <option value="all" selected="selected">$status_types{'all'}</option>
2395: <option value="Active">$status_types{'Active'}</option>
2396: <option value="Expired">$status_types{'Expired'}</option>
2397: <option value="Future">$status_types{'Future'}</option>
2398: </select>
2399: </td>
2400: <td> </td>
2401: <td align="center" valign="top">
2402: <select name="rolefilter" multiple="multiple" size="5">
2403: <option value="all">$role_types{'all'}</option>
2404: <option value="st">$role_types{'st'}</option>
2405: <option value="$ccrole">$role_types{$ccrole}</option>
2406: <option value="in">$role_types{'in'}</option>
2407: <option value="ta">$role_types{'ta'}</option>
2408: <option value="ep">$role_types{'ep'}</option>
2409: <option value="ad">$role_types{'ad'}</option>
2410: <option value="cr">$role_types{'cr'}</option>
2411: </select>
2412: </td>
2413: <td> </td>
2414: <td align="center" valign="top">
2415: <select name="sectionpick" multiple="multiple" size="$numvisible">
2416: $section_sel
2417: </select>
2418: </td>
2419: <td> </td>
2420: <td align="center" valign="top">
2421: <select name="grouppick" multiple="multiple" size="$numvisible">
2422: $group_sel
2423: </select>
2424: </td>
2425: <td> </td>
2426: <td valign="top"><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
2427: </tr>
2428: </table>
2429: <br />
2430: <input type="hidden" name="inhibitmenu" value="$env{'form.inhibitmenu'}" />
2431: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2432: <input type="hidden" name="previous" value="$previous" />
2433: <input type="hidden" name="applysort" value="$symb" />
2434: <input type="button" name="sub" value="$lt{'stor'}" onclick="verifyFilter()" />
2435: END
2436: if (exists($env{'form.group'})) {
2437: $r->print('<input type="hidden" name="group" value="'.$env{'form.group'}.'" />');
2438: }
2439: if (exists($env{'form.ref'})) {
2440: $r->print('<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />');
2441: }
2442: $r->print("
2443: <br />
2444: <br />
2445: </form>
2446: $end_page
2447: ");
2448: }
2449:
2450: sub print_showposters {
2451: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
2452:
2453: &Apache::loncommon::content_type($r,'text/html');
2454: $r->send_http_header;
2455:
2456: &Apache::lonenc::check_encrypt(\$symb);
2457: my $crs='/'.$env{'request.course.id'};
2458: if ($env{'request.course.sec'}) {
2459: $crs.='_'.$env{'request.course.sec'};
2460: }
2461: $crs=~s/\_/\//g;
2462: my $seeid;
2463: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2464: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2465: my $group = $env{'form.group'};
2466: my $ressymb = &wrap_symb($symb);
2467: if (($group ne '') &&
2468: ($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|)) {
2469: if (&check_group_priv($group,'dgp') eq 'ok') {
2470: $seeid = 1;
2471: }
2472: } else {
2473: $seeid=&Apache::lonnet::allowed('rin',$crs);
2474: }
2475: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2476: $cdom,$cnum);
2477: my %namesort = ();
2478: my %postcounts = ();
2479:
2480: my %lt = &Apache::lonlocal::texthash(
2481: sele => 'Select',
2482: full => 'Fullname',
2483: usdo => 'Username:domain',
2484: post => 'Posts',
2485: );
2486: if ($contrib{'version'}) {
2487: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
2488: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
2489: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
2490: unless ((($hidden) && (!$seeid)) || ($deleted)) {
2491: if ((!$contrib{$idx.':anonymous'}) || (&Apache::lonnet::allowed('rin',$env{'request.course.id'}.($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')))) {
2492: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
2493: my $lastname = $names{'lastname'};
2494: my $firstname = $names{'firstname'};
2495: if ($lastname eq '') {
2496: $lastname = '_';
2497: }
2498: if ($firstname eq '') {
2499: $firstname = '_';
2500: }
2501: unless (defined($namesort{$lastname})) {
2502: %{$namesort{$lastname}} = ();
2503: }
2504: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2505: $postcounts{$poster} ++;
2506: if (defined($namesort{$lastname}{$firstname})) {
2507: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2508: push(@{$namesort{$lastname}{$firstname}}, $poster);
2509: }
2510: } else {
2511: @{$namesort{$lastname}{$firstname}} = ("$poster");
2512: }
2513: }
2514: }
2515: }
2516: }
2517:
2518: my $start_page = &Apache::loncommon::start_page('Discussion options');
2519: my $table_start =&Apache::loncommon::start_data_table();
2520: $r->print(<<END);
2521: $start_page
2522: <form name="pickpostersform" method="post">
2523: <br />
2524: $table_start
2525: <tr>
2526: <th>#</th>
2527: <th>$lt{'sele'}</th>
2528: <th>$lt{'full'} <font color="#999999">($lt{'usdo'})</font></th>
2529: <th>$lt{'post'}</th>
2530: </tr>
2531: END
2532: my $count = 0;
2533: foreach my $last (sort(keys(%namesort))) {
2534: foreach my $first (sort(keys(%{$namesort{$last}}))) {
2535: foreach my $user (sort(@{$namesort{$last}{$first}})) {
2536: my ($uname,$udom) = split(/:/,$user);
2537: if (!$uname || !$udom) {
2538: next;
2539: } else {
2540: $count ++;
2541: $r->print(&Apache::loncommon::start_data_table_row().
2542: '<td align="right">'.$count.'</td>
2543: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$user.'" /></td>
2544: <td>'.$last.', '.$first.' ('.$uname.':'.$udom.')</label></td>
2545: <td>'.$postcounts{$user}.'</td>'.
2546: &Apache::loncommon::end_data_table_row());
2547: }
2548: }
2549: }
2550: }
2551: $r->print(&Apache::loncommon::end_data_table());
2552: my $end_page = &Apache::loncommon::end_page();
2553: $r->print(<<END);
2554: <br />
2555: <input type="hidden" name="sortposts" value="$sortposts" />
2556: <input type="hidden" name="modal" value="$env{'form.modal'}" />
2557: <input type="hidden" name="userpick" value="$symb" />
2558: <input type="button" name="store" value="Display posts" onclick="javascript:document.pickpostersform.submit()" />
2559: </form>
2560: $end_page
2561: END
2562: }
2563:
2564: sub get_post_versions {
2565: my ($versions,$incoming,$htmldecode,$numver) = @_;
2566: if ($incoming =~ /^<version num="0">/) {
2567: my $p = HTML::LCParser->new(\$incoming);
2568: my $done = 0;
2569:
2570: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2571: my $num = $token->[1]{num};
2572: my $text = $p->get_text("/version");
2573: if (defined($numver)) {
2574: if ($num == $numver) {
2575: if ($htmldecode) {
2576: $text = &HTML::Entities::decode($text);
2577: }
2578: $$versions{$numver}=$text;
2579: $done = 1;
2580: }
2581: } else {
2582: if ($htmldecode) {
2583: $text = &HTML::Entities::decode($text);
2584: }
2585: $$versions{$num}=$text;
2586: }
2587: }
2588: } else {
2589: if (!defined($numver)) {
2590: $numver = 0;
2591: }
2592: if ($htmldecode) {
2593: $$versions{$numver} = $incoming;
2594: } else {
2595: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2596: }
2597: }
2598: return;
2599: }
2600:
2601: sub get_post_attachments {
2602: my ($attachments,$attachmenturls) = @_;
2603: my $num;
2604: if ($attachmenturls =~ m/^<attachment id="0">/) {
2605: my $p = HTML::LCParser->new(\$attachmenturls);
2606: while (my $token = $p->get_tag("attachment","filename","post")) {
2607: if ($token->[0] eq "attachment") {
2608: $num = $token->[1]{id};
2609: %{$$attachments{$num}} =();
2610: } elsif ($token->[0] eq "filename") {
2611: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2612: } elsif ($token->[0] eq "post") {
2613: my $id = $token->[1]{id};
2614: $$attachments{$num}{$id} = $p->get_text("/post");
2615: }
2616: }
2617: } else {
2618: %{$$attachments{'0'}} = ();
2619: $$attachments{'0'}{'filename'} = $attachmenturls;
2620: $$attachments{'0'}{'0'} = 'n';
2621: }
2622:
2623: return;
2624: }
2625:
2626: sub fail_redirect {
2627: my ($r,$feedurl) = @_;
2628: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2629: my %lt = &Apache::lonlocal::texthash(
2630: 'sorr' => 'Sorry, no recipients ...',
2631: );
2632: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2633: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,
2634: {'redirect' => [2,$feedurl],
2635: 'only_body' => 1,}));
2636: $r->print(<<ENDFAILREDIR);
2637: <img align="right" src="$logo" />
2638: <b>$lt{'sorr'}</b>
2639: ENDFAILREDIR
2640: $r->print(&Apache::loncommon::end_page());
2641: }
2642:
2643: sub redirect_back {
2644: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$grouppick,$numpicks,$group,$toolarge) = @_;
2645: my $sorttag = '';
2646: my $roletag = '';
2647: my $statustag = '';
2648: my $sectag = '';
2649: my $grptag = '';
2650: my $userpicktag = '';
2651: my $qrystr = '';
2652: my $prevtag = '';
2653:
2654: &Apache::loncommon::content_type($r,'text/html');
2655: $r->send_http_header;
2656: &dewrapper(\$feedurl);
2657: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2658: if ($previous > 0) {
2659: $qrystr = 'previous='.$previous;
2660: if ($feedurl =~ /\?register=1/) {
2661: $feedurl .= '&'.$qrystr;
2662: } else {
2663: $feedurl .= '?'.$qrystr;
2664: }
2665: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2666: }
2667: if (defined($sort)) {
2668: my $sortqry = 'sortposts='.$sort;
2669: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2670: $feedurl .= '&'.$sortqry;
2671: } else {
2672: $feedurl .= '?'.$sortqry;
2673: }
2674: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2675: if (defined($numpicks)) {
2676: my $userpickqry = 'totposters='.$numpicks;
2677: $feedurl .= '&'.$userpickqry;
2678: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2679: } else {
2680: if (ref($sectionpick) eq 'ARRAY') {
2681: $feedurl .= '&sectionpick=';
2682: $sectag .= '<input type="hidden" name="sectionpick" value="';
2683: foreach my $sec (@{$sectionpick}) {
2684: $feedurl .= $sec.',';
2685: $sectag .= $sec.',';
2686: }
2687: $feedurl =~ s/,$//;
2688: $sectag =~ s/,$//;
2689: $sectag .= '" />';
2690: } else {
2691: $feedurl .= '&sectionpick='.$sectionpick;
2692: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2693: }
2694: if (ref($grouppick) eq 'ARRAY') {
2695: $feedurl .= '&grouppick=';
2696: $sectag .= '<input type="hidden" name="grouppick" value="';
2697: foreach my $grp (@{$grouppick}) {
2698: $feedurl .= $grp.',';
2699: $grptag .= $grp.',';
2700: }
2701: $feedurl =~ s/,$//;
2702: $grptag =~ s/,$//;
2703: $grptag .= '" />';
2704: } else {
2705: $feedurl .= '&grouppick='.$grouppick;
2706: $grptag = '<input type="hidden" name="grouppick" value="'.$grouppick.'" />';
2707: }
2708: if (ref($rolefilter) eq 'ARRAY') {
2709: $feedurl .= '&rolefilter=';
2710: $roletag .= '<input type="hidden" name="rolefilter" value="';
2711: foreach my $role (@{$rolefilter}) {
2712: $feedurl .= $role.',';
2713: $roletag .= $role.',';
2714: }
2715: $feedurl =~ s/,$//;
2716: $roletag =~ s/,$//;
2717: $roletag .= '" />';
2718: } else {
2719: $feedurl .= '&rolefilter='.$rolefilter;
2720: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2721: }
2722: $feedurl .= '&statusfilter='.$statusfilter;
2723: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2724: }
2725: }
2726: my $grouptag;
2727: if ($group ne '') {
2728: $grouptag = '<input type="hidden" name="group" value="'.$group.'" />';
2729: my $refarg;
2730: if (exists($env{'form.ref'})) {
2731: $refarg = '&ref='.$env{'form.ref'};
2732: $grouptag .= '<input type="hidden" name="ref" value="'.$env{'form.ref'}.'" />';
2733: }
2734: if ($feedurl =~ /\?/) {
2735: $feedurl .= '&group='.$group.$refarg;
2736: } else {
2737: $feedurl .= '?group='.$group.$refarg;
2738: }
2739: }
2740: &Apache::lonenc::check_encrypt(\$feedurl);
2741: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2742: my %parms=('only_body' => 1);
2743: if ($env{'form.modal'}) {
2744: $parms{'add_entries'}={'onLoad' => 'document.forms.reldt.submit()'};
2745: } else {
2746: $parms{'redirect'}=[0,$feedurl];
2747: }
2748: my $start_page=
2749: &Apache::loncommon::start_page('Feedback sent',undef,\%parms);
2750: my $end_page = &Apache::loncommon::end_page();
2751: $r->print(<<ENDREDIR);
2752: $start_page
2753: <img align="right" src="$logo" />
2754: $typestyle
2755: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2756: $blog
2757: $toolarge
2758: <font color="red">$status</font>
2759: <form name="reldt" action="$feedurl" target="loncapaclient">
2760: $prevtag
2761: $sorttag
2762: $statustag
2763: $roletag
2764: $sectag
2765: $grptag
2766: $userpicktag
2767: $grouptag
2768: </form>
2769: $end_page
2770: ENDREDIR
2771: }
2772:
2773: sub no_redirect_back {
2774: my ($r,$feedurl) = @_;
2775: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2776:
2777: my %onload;
2778:
2779: my %body_options = ('only_body' => 1,
2780: 'bgcolor' => '#FFFFFF',
2781: 'add_entries' => \%onload,);
2782:
2783: if ($feedurl !~ m{^/adm/feedback}) {
2784: $body_options{'redirect'} = [2,$feedurl];
2785: }
2786: my $start_page=
2787: &Apache::loncommon::start_page('Feedback not sent',undef,
2788: \%body_options);
2789:
2790: my $end_page = &Apache::loncommon::end_page();
2791:
2792: &Apache::lonenc::check_encrypt(\$feedurl);
2793: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2794: $r->print (<<ENDNOREDIRTWO);
2795: $start_page
2796: <img align="right" src="$logo" />
2797: <b>$nofeed</b>
2798: <br />
2799: $end_page
2800: ENDNOREDIRTWO
2801: }
2802:
2803: sub screen_header {
2804: my ($feedurl,$symb,$group) = @_;
2805: my $crscontent = &mt('Question/Comment/Feedback about course content');
2806: my $crspolicy = &mt('Question/Comment/Feedback about course policy');
2807: my $contribdisc = &mt('Contribution to course discussion of resource');
2808: my $anoncontrib = &mt('Anonymous contribution to course discussion of resource');
2809: my $namevis = &mt('name only visible to course faculty');
2810: my $crstype;
2811: if ($env{'request.course.id'}) {
2812: $crstype = &Apache::loncommon::course_type();
2813: if ($crstype eq 'Community') {
2814: $crscontent = &mt('Question/Comment/Feedback about community content');
2815: $crspolicy = &mt('Question/Comment/Feedback about community policy');
2816: $contribdisc = &mt('Contribution to community discussion of resource');
2817: $anoncontrib = &mt('Anonymous contribution to community discussion of resource');
2818: $namevis = &mt('name only visible to community facilitators');
2819: }
2820: }
2821: my $msgoptions='';
2822: my $discussoptions='';
2823: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2824: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2825: $msgoptions=
2826: '<label><input type="radio" name="discuss" value="author" /> '.
2827: &mt('Feedback to resource author').'</label><br />';
2828: }
2829: my %optionhash=();
2830: foreach my $type ('question','comment','policy') {
2831: $optionhash{$type}=$env{'course.'.$env{'request.course.id'}.'.'.$type.'.email.text'};
2832: }
2833: if (&feedback_available(1)) {
2834: $msgoptions.=
2835: '<label><input type="radio" name="discuss" value="question" /> '.
2836: ($optionhash{'question'}?$optionhash{'question'}:&mt('Question about resource content')).'</label><br />';
2837: }
2838: if (&feedback_available(0,1)) {
2839: $msgoptions.=
2840: '<label><input type="radio" name="discuss" value="course" /> '.
2841: ($optionhash{'comment'}?$optionhash{'comment'}:$crscontent).
2842: '</label><br />';
2843: }
2844: if (&feedback_available(0,0,1)) {
2845: $msgoptions.=
2846: '<label><input type="radio" name="discuss" value="policy" /> '.
2847: ($optionhash{'policy'}?$optionhash{'policy'}:$crspolicy).
2848: '</label><br />';
2849: }
2850: }
2851: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2852: my ($blocked,$blocktext) = &Apache::loncommon::blocking_status('boards');
2853: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
2854: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
2855: my $realsymb = &get_realsymb($symb);
2856: if (!$blocked && &discussion_open(undef,$realsymb) &&
2857: (&Apache::lonnet::allowed('pch',
2858: $env{'request.course.id'}.
2859: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
2860: (($group ne '') && ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$}) && (&check_group_priv($group,'pgd') eq 'ok')))) {
2861: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
2862: $contribdisc.
2863: '</label><br /><label><input type="radio" name="discuss" value="anon" /> '.
2864: $anoncontrib.
2865: ' <i>('.$namevis.')</i></label> '.
2866: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
2867: my $blockblog = &Apache::loncommon::blocking_status('blogs');
2868: if (!$blockblog) {
2869: $discussoptions.= &add_blog_checkbox($crstype);
2870: }
2871: }
2872: }
2873: if ($msgoptions) {
2874: $msgoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').'" />'
2875: .'<br />'.&mt('Send Feedback').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Feedback Settings'),'feedback').'</th>'.
2876: '<td>'.$msgoptions.'</td></tr>';
2877: }
2878: if ($discussoptions) {
2879: $discussoptions='<tr><th><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" alt="" />'
2880: .'<br />'.&mt('Discussion Contributions').'<br />'.&Apache::lonhtmlcommon::coursepreflink(&mt('Discussion Settings'),'discussion').'</th>'.
2881: '<td>'.$discussoptions.'</td></tr>';
2882: }
2883: return &Apache::loncommon::start_data_table().$msgoptions.$discussoptions.&Apache::loncommon::end_data_table();
2884: }
2885:
2886: sub resource_output {
2887: my ($feedurl) = @_;
2888: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2889: $usersaw=~s/\<body[^\>]*\>//gi;
2890: $usersaw=~s/\<\/body\>//gi;
2891: $usersaw=~s/\<html\>//gi;
2892: $usersaw=~s/\<\/html\>//gi;
2893: $usersaw=~s/\<head\>//gi;
2894: $usersaw=~s/\<\/head\>//gi;
2895: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2896: return $usersaw;
2897: }
2898:
2899: sub clear_out_html {
2900: my ($message,$override)=@_;
2901: # Always allow the <m>-tag
2902: my %html=(M=>1);
2903: # Check if more is allowed
2904: my $cid=$env{'request.course.id'};
2905: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2906: ($override)) {
2907: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2908: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2909: # <SUP> <TABLE> <TR> <TD> <TH> <TBODY>
2910: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2911: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, PRE=>1, DIV=>1, IMG=>1,
2912: M=>1, CHEM=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
2913: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1, H6=>1,
2914: TABLE=>1, TR=>1, TD=>1, TH=>1, TBODY=>1);
2915: }
2916: # Do the substitution of everything that is not explicitly allowed
2917: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
2918: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2919: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
2920: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2921: return $message;
2922: }
2923:
2924: sub assemble_email {
2925: my ($message,$prevattempts,$usersaw,$useranswer)=@_;
2926: my %lt = &Apache::lonlocal::texthash(
2927: 'prev' => 'Previous attempts of student (if applicable)',
2928: 'orig' => 'Original screen output (if applicable)',
2929: 'corr' => 'Correct Answer(s) (if applicable)',
2930: );
2931: if (&Apache::loncommon::course_type() eq 'Community') {
2932: $lt{'prev'} = &mt('Previous attempts of member (if applicable)');
2933: }
2934: my $email=<<"ENDEMAIL";
2935: $message
2936: ENDEMAIL
2937: my $citations=<<"ENDCITE";
2938: <h2>$lt{'prev'}</h2>
2939: $prevattempts
2940: <br /><hr />
2941: <h2>$lt{'orig'}</h2>
2942: $usersaw
2943: <h2>$lt{'corr'}</h2>
2944: $useranswer
2945: ENDCITE
2946: return ($email,$citations);
2947: }
2948:
2949:
2950: sub feedback_available {
2951: my ($question,$course,$policy)=@_;
2952: my ($typestyle,%to)=&Apache::lonmsg::decide_receiver('',0,$question,
2953: $course,$policy);
2954: return scalar(%to);
2955: }
2956:
2957: sub send_msg {
2958: my ($title,$feedurl,$email,$citations,$attachmenturl,$symb,%to)=@_;
2959: my $status='';
2960: my $sendsomething=0;
2961: my $restitle = &get_resource_title($symb,$feedurl);
2962: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
2963: unless ($title=~/\w/) { $title=&mt('Feedback'); }
2964: foreach my $key (keys(%to)) {
2965: if ($key) {
2966: my ($user,$domain) = split(/\:/,$key,2);
2967: if (!defined($user)) {
2968: $status.='<br />'.&mt('Error sending message to [_1], no user specified.',$key);
2969: } elsif (!defined($domain)) {
2970: $status.='<br />'.&mt('Error sending message to [_1], no domain specified.',$key);
2971: } else {
2972: unless (&Apache::lonmsg::user_normal_msg($user,$domain,
2973: $title.' ['.$restitle.']',$email,$citations,$feedurl,
2974: $attachmenturl,undef,undef,$symb,$restitle)=~/ok/) {
2975: $status.='<br />'.&mt('Error sending message to').' '.$key.'<br />';
2976: } else {
2977: $sendsomething++;
2978: }
2979: }
2980: }
2981: }
2982:
2983: # Records of number of feedback messages are kept under the "symb" called "_feedback"
2984: # There are two entries within the framework of a course:
2985: # - the URLs for which feedback was provided
2986: # - the total number of contributions
2987: if ($sendsomething) {
2988: my %record=&getfeedbackrecords();
2989: my ($temp)=keys(%record);
2990: unless ($temp=~/^error\:/) {
2991: my %newrecord=();
2992: $newrecord{'resource'}=$feedurl;
2993: $newrecord{'subnumber'}=$record{'subnumber'}+1;
2994: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
2995: $status.='<br />'.&mt('Not registered').'<br />';
2996: }
2997: }
2998: }
2999: return ($status,$sendsomething);
3000: }
3001:
3002: # Routine to get the complete feedback records
3003:
3004: sub getfeedbackrecords {
3005: my ($uname,$udom,$course)=@_;
3006: unless ($uname) { $uname=$env{'user.name'}; }
3007: unless ($udom) { $udom=$env{'user.domain'}; }
3008: unless ($course) { $course=$env{'request.course.id'}; }
3009: my %record=&Apache::lonnet::restore('_feedback',$course,$udom,$uname);
3010: return %record;
3011: }
3012:
3013: # Routine to get feedback statistics
3014:
3015: sub getfeedbackstats {
3016: my %record=&getfeedbackrecords(@_);
3017: return ($record{'subnumber'},$record{'points'},$record{'totallikes'});
3018: }
3019:
3020: # Store feedback credit
3021:
3022: sub storefeedbackpoints {
3023: my ($points,$uname,$udom,$course)=@_;
3024: unless ($points) { $points=0; }
3025: unless ($uname) { $uname=$env{'user.name'}; }
3026: unless ($udom) { $udom=$env{'user.domain'}; }
3027: unless ($course) { $course=$env{'request.course.id'}; }
3028: my %record=('grader_user' => $env{'user.name'},
3029: 'grader_domain' => $env{'user.domain'},
3030: 'points' => $points);
3031: return &Apache::lonnet::cstore(\%record,'_feedback',$course,$udom,$uname);
3032: }
3033:
3034: # Store feedback "likes"
3035:
3036: sub storefeedbacklikes {
3037: my ($likes,$uname,$udom,$course)=@_;
3038: unless ($likes) { $likes=0; }
3039: if ($likes>0) { $likes=1; }
3040: if ($likes<0) { $likes=-1; }
3041: unless ($uname) { $uname=$env{'user.name'}; }
3042: unless ($udom) { $udom=$env{'user.domain'}; }
3043: unless ($course) { $course=$env{'request.course.id'}; }
3044: my %record=&getfeedbackrecords($uname,$udom,$course);
3045: my $totallikes=$record{'totallikes'};
3046: $totallikes+=$likes;
3047: my %newrecord=('likes_user' => $env{'user.name'},
3048: 'likes_domain' => $env{'user.domain'},
3049: 'likes' => $likes,
3050: 'totallikes' => $totallikes);
3051: return &Apache::lonnet::cstore(\%newrecord,'_feedback',$course,$udom,$uname);
3052: }
3053:
3054:
3055: sub adddiscuss {
3056: my ($symb,$email,$anon,$attachmenturl,$subject,$group)=@_;
3057: my $status='';
3058: my $realsymb = &get_realsymb($symb);
3059: my ($cnum,$cdom);
3060: if ($env{'request.course.id'}) {
3061: $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3062: $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3063: }
3064: if (&discussion_open(undef,$realsymb) &&
3065: (&Apache::lonnet::allowed('pch',$env{'request.course.id'}.
3066: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'')) ||
3067: (($group ne '') && (&check_group_priv($group,'pgd') eq 'ok') &&
3068: ($symb =~ m{^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$})))) {
3069:
3070: my %contrib=('message' => $email,
3071: 'sendername' => $env{'user.name'},
3072: 'senderdomain' => $env{'user.domain'},
3073: 'screenname' => $env{'environment.screenname'},
3074: 'plainname' => $env{'environment.firstname'}.' '.
3075: $env{'environment.middlename'}.' '.
3076: $env{'environment.lastname'}.' '.
3077: $env{'enrironment.generation'},
3078: 'attachmenturl'=> $attachmenturl,
3079: 'subject' => $subject);
3080: if ($env{'form.replydisc'}) {
3081: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
3082: }
3083: if ($anon) {
3084: $contrib{'anonymous'}='true';
3085: }
3086: if (($symb) && ($email)) {
3087: my $now = time;
3088: if ($env{'form.editdisc'}) {
3089: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
3090: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
3091: $contrib{'timestamp'} = $now;
3092: $contrib{'history'} = '';
3093: my $numoldver = 0;
3094: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
3095: &Apache::lonenc::check_decrypt(\$oldsymb);
3096: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3097: # get timestamp for last post and history
3098: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
3099: $env{'course.'.$env{'request.course.id'}.'.domain'},
3100: $env{'course.'.$env{'request.course.id'}.'.num'});
3101: if (defined($oldcontrib{$oldidx.':replyto'})) {
3102: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
3103: }
3104: if (defined($oldcontrib{$oldidx.':history'})) {
3105: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
3106: my @oldversions = split(/:/,$oldcontrib{$oldidx.':history'});
3107: $numoldver = @oldversions;
3108: } else {
3109: $numoldver = 1;
3110: }
3111: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
3112: }
3113: my $numnewver = $numoldver + 1;
3114: if (defined($oldcontrib{$oldidx.':subject'})) {
3115: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
3116: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3117: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
3118: } else {
3119: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
3120: }
3121: }
3122: if (defined($oldcontrib{$oldidx.':message'})) {
3123: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
3124: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3125: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
3126: } else {
3127: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
3128: }
3129: }
3130: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
3131: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
3132: $oldsymb,$oldidx,\%contrib,
3133: $env{'course.'.$env{'request.course.id'}.'.domain'},
3134: $env{'course.'.$env{'request.course.id'}.'.num'});
3135: $status='Editing class discussion'.($anon?' (anonymous)':'');
3136: } else {
3137: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
3138: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
3139: $env{'course.'.$env{'request.course.id'}.'.domain'},
3140: $env{'course.'.$env{'request.course.id'}.'.num'});
3141: }
3142: my %storenewentry=($symb => $now);
3143: $status.='<br />'.&mt('Updating discussion time').': '.
3144: &Apache::lonnet::put('discussiontimes',\%storenewentry,
3145: $env{'course.'.$env{'request.course.id'}.'.domain'},
3146: $env{'course.'.$env{'request.course.id'}.'.num'});
3147: }
3148: my %record=&getdiscussionrecords();
3149: my ($temp)=keys(%record);
3150: unless ($temp=~/^error\:/) {
3151: my %newrecord=();
3152: $newrecord{'resource'}=$symb;
3153: $newrecord{'subnumber'}=$record{'subnumber'}+1;
3154: $status.='<br />'.&mt('Registering').': '.
3155: &Apache::lonnet::cstore(\%newrecord,'_discussion');
3156: &updatekarma();
3157: }
3158: } else {
3159: $status.='Failed.';
3160: }
3161: return $status.'<br />';
3162: }
3163:
3164:
3165: # Routine to get the complete discussion records
3166:
3167: sub getdiscussionrecords {
3168: my ($uname,$udom,$course)=@_;
3169: unless ($uname) { $uname=$env{'user.name'}; }
3170: unless ($udom) { $udom=$env{'user.domain'}; }
3171: unless ($course) { $course=$env{'request.course.id'}; }
3172: my %record=&Apache::lonnet::restore('_discussion',$course,$udom,$uname);
3173: return %record;
3174: }
3175:
3176: # Routine to get discussion statistics
3177:
3178: sub getdiscussionstats {
3179: my %record=&getdiscussionrecords(@_);
3180: return ($record{'subnumber'},$record{'points'},$record{'totallikes'},$record{'totalvotes'});
3181: }
3182:
3183: # Calculate discussion karma
3184:
3185: sub calcdiscussionkarma {
3186: my ($subs,$pts,$likes,$votes)=&getdiscussionstats(@_);
3187: my $karma=0;
3188: if ($votes>0) {
3189: $karma=int(.1+5.*(1.-exp(-$subs/10.))*$likes/$votes);
3190: if ($karma<0) { $karma=0; }
3191: if ($karma>5) { $karma=5; }
3192: }
3193: return $karma;
3194: }
3195:
3196: # Update karma
3197:
3198: sub updatekarma {
3199: my ($uname,$udom,$course)=@_;
3200: unless ($uname) { $uname=$env{'user.name'}; }
3201: unless ($udom) { $udom=$env{'user.domain'}; }
3202: unless ($course) { $course=$env{'request.course.id'}; }
3203: my $karma=&calcdiscussionkarma($uname,$udom,$course);
3204: &Apache::lonnet::cstore({ 'karma' => $karma },'_discussion',$course,$udom,$uname);
3205: &Apache::lonnet::do_cache_new('karma',$uname.':'.$udom.':'.$course,$karma,3600);
3206: return $karma;
3207: }
3208:
3209: # Retrieve karma
3210:
3211: sub userkarma {
3212: my ($uname,$udom,$course)=@_;
3213: unless ($uname) { $uname=$env{'user.name'}; }
3214: unless ($udom) { $udom=$env{'user.domain'}; }
3215: unless ($course) { $course=$env{'request.course.id'}; }
3216: my $hashkey=$uname.':'.$udom.':'.$course;
3217: my ($karma,$cached)=&Apache::lonnet::is_cached_new('karma',$hashkey);
3218: if ($cached) {
3219: return $karma;
3220: }
3221: my %userdisc=&getdiscussionrecords($uname,$udom,$course);
3222: $karma=$userdisc{'karma'};
3223: &Apache::lonnet::do_cache_new('karma',$hashkey,$karma,3600);
3224: return $karma;
3225: }
3226:
3227: # Store discussion credit
3228:
3229: sub storediscussionpoints {
3230: my ($points,$uname,$udom,$course)=@_;
3231: unless ($points) { $points=0; }
3232: unless ($uname) { $uname=$env{'user.name'}; }
3233: unless ($udom) { $udom=$env{'user.domain'}; }
3234: unless ($course) { $course=$env{'request.course.id'}; }
3235: my %record=('grader_user' => $env{'user.name'},
3236: 'grader_domain' => $env{'user.domain'},
3237: 'points' => $points);
3238: return &Apache::lonnet::cstore(\%record,'_discussion',$course,$udom,$uname);
3239: }
3240:
3241: # Store discussion "likes"
3242:
3243: sub storediscussionlikes {
3244: my ($likes,$uname,$udom,$course)=@_;
3245: unless ($likes) { $likes=0; }
3246: if ($likes>0) { $likes=1; }
3247: if ($likes<0) { $likes=-1; }
3248: unless ($uname) { $uname=$env{'user.name'}; }
3249: unless ($udom) { $udom=$env{'user.domain'}; }
3250: unless ($course) { $course=$env{'request.course.id'}; }
3251: my %record=&getdiscussionrecords($uname,$udom,$course);
3252: my $totallikes=$record{'totallikes'};
3253: my $totalvotes=$record{'totalvotes'};
3254: $totallikes+=$likes;
3255: $totalvotes++;
3256: my %newrecord=('likes_user' => $env{'user.name'},
3257: 'likes_domain' => $env{'user.domain'},
3258: 'likes' => $likes,
3259: 'totallikes' => $totallikes,
3260: 'totalvotes' => $totalvotes);
3261: my $status=&Apache::lonnet::cstore(\%newrecord,'_discussion',$course,$udom,$uname);
3262: if ($status eq 'ok') {
3263: &updatekarma($uname,$udom,$course);
3264: }
3265: return $status;
3266: }
3267:
3268: sub get_discussion_info {
3269: my ($idx,%contrib) = @_;
3270: my $changelast = 0;
3271: my $count = 0;
3272: my $hiddenflag = 0;
3273: my $deletedflag = 0;
3274: my ($hidden,$deleted,%info,$newlastdisc);
3275: my $version = $contrib{'version'};
3276: if ($version) {
3277: for (my $id=$version; $id>0; $id--) {
3278: my $vkeys=$contrib{$id.':keys'};
3279: my @keys=split(/:/,$vkeys);
3280: if (grep(/^hidden$/,@keys)) {
3281: if (!$hiddenflag) {
3282: $hidden = $contrib{$id.':hidden'};
3283: $hiddenflag = 1;
3284: }
3285: } elsif (grep(/^deleted$/,@keys)) {
3286: if (!$deletedflag) {
3287: $deleted = $contrib{$id.':deleted'};
3288: $deletedflag = 1;
3289: }
3290: } else {
3291: if (($hidden !~/\.$id\./) && ($deleted !~/\.$id\./)) {
3292: $count++;
3293: $info{$count}{'id'} = $id;
3294: $info{$count}{'timestamp'}=$contrib{$id.':timestamp'};
3295: }
3296: }
3297: }
3298: if ($info{'1'}{'id'} == $idx) {
3299: $changelast = 1;
3300: if ($count > 1) {
3301: $newlastdisc = $info{'2'}{'timestamp'};
3302: } else {
3303: $newlastdisc = 0;
3304: }
3305: }
3306: }
3307: return ($changelast,$newlastdisc);
3308: }
3309:
3310: # ----------------------------------------------------------- Preview function
3311:
3312: sub show_preview {
3313: my ($r) = @_;
3314: &Apache::loncommon::content_type($r,'text/html');
3315: $r->send_http_header;
3316: my $start_page=
3317: &Apache::loncommon::start_page('Preview',undef,
3318: {'only_body' => 1,});
3319:
3320: my $message=&clear_out_html($env{'form.comment'});
3321: &newline_to_br(\$message);
3322: $message=&Apache::lonspeller::markeduptext($message);
3323: $message=&Apache::lontexconvert::msgtexconverted($message);
3324: my $subject=&clear_out_html($env{'form.subject'});
3325: $subject=~s/\n/\<br \/\>/g;
3326: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3327:
3328: my $end_page = &Apache::loncommon::end_page();
3329:
3330: $r->print($start_page
3331: .'<h1>'.&mt('Preview').'</h1>'
3332: .&Apache::lonhtmlcommon::start_pick_box()
3333: .&Apache::lonhtmlcommon::row_title(&mt('Subject'))
3334: .$subject
3335: .&Apache::lonhtmlcommon::row_closure()
3336: .&Apache::lonhtmlcommon::row_title(&mt('Message'))
3337: .$message
3338: .&Apache::lonhtmlcommon::row_closure(1)
3339: .&Apache::lonhtmlcommon::end_pick_box()
3340: .$end_page
3341: );
3342: }
3343:
3344: sub contains_block_html {
3345: my ($message)=@_;
3346: return ($message =~ m{
3347: <(br|h1|h2|h3|h4|h5|h6|p|ol|ul|table|pre|address|blockquote|center|div)
3348: \s*
3349: (\w+\=['"]\w+['"])*
3350: \s*
3351: (
3352: \s*/>|
3353: >.*</\1\s*>
3354: )}xs
3355: );
3356: }
3357:
3358: sub tidy_html {
3359: my ($message)=@_;
3360: # my $tidy = HTML::Tidy::libXML->new();
3361: # my $xhtml = $tidy->clean($message, 'utf-8', 1);
3362: # $xhtml =~ m/<body>(.*)<\/body>/is;
3363: # my $clean = $1;
3364: # # remove any empty block-level tags
3365: # $clean =~ s/<(table|p|div|tbody|blockquote|m|pre|algebra|center|ol|ul|span|h1|h2|h3|h4|h5|h6)\s*\/>//i;
3366: # $message=$clean;
3367: return $message;
3368: }
3369:
3370: sub newline_to_br {
3371: my ($message)=@_;
3372: my $newmessage;
3373: my $parser=HTML::LCParser->new($message);
3374: while (my $token=$parser->get_token()) {
3375: if ($token->[0] eq 'T') {
3376: my $text=$token->[1];
3377: $text=~s/\n/\<br \/\>/g;
3378: $newmessage.=$text;
3379: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
3380: $newmessage.=$token->[1];
3381: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
3382: $newmessage.=$token->[2];
3383: } elsif ($token->[0] eq 'S') {
3384: $newmessage.=$token->[4];
3385: }
3386:
3387: }
3388: $$message=$newmessage;
3389: }
3390:
3391: sub generate_preview_button {
3392: my ($formname,$fieldname)=@_;
3393: unless ($formname) { $formname='mailform'; }
3394: unless ($fieldname) { $fieldname='comment'; }
3395: my $pre=&mt("Show Preview and Check Spelling");
3396: return(<<ENDPREVIEW);
3397: <br />
3398: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
3399: <input type="hidden" name="subject" />
3400: <input type="hidden" name="comment" />
3401: <input type="button" value="$pre"
3402: onclick="if (typeof(document.$formname.onsubmit)=='function') {document.$formname.onsubmit();};this.form.comment.value=document.$formname.$fieldname.value;this.form.subject.value=document.$formname.subject.value;this.form.submit();" />
3403: </form>
3404: ENDPREVIEW
3405: }
3406:
3407: sub modify_attachments {
3408: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls,
3409: $attachmaxtext,$toolarge)=@_;
3410:
3411: my %lt = &Apache::lonlocal::texthash(
3412: 'subj' => 'Subject',
3413: 'chth' => 'Check the checkboxes for any you wish to remove.',
3414: 'thef' => 'The following attachments have been uploaded for inclusion with this posting.',
3415: 'adda' => 'Add a new attachment to this post',
3416: 'stch' => 'Save Changes',
3417: 'clic' => 'Add/remove attachments',
3418: );
3419: my $js = <<END;
3420: <script type="text/javascript">
3421: function setAction () {
3422: document.modattachments.action = document.modattachments.origpage.value;
3423: document.modattachments.submit();
3424: }
3425: </script>
3426: END
3427:
3428: # Breadcrumbs
3429: my $brcrum = [{'href' => '',
3430: 'text' => 'Discussion Post Attachments'}];
3431: my %parms=('only_body' => 1);
3432: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
3433:
3434: my $start_page =
3435: &Apache::loncommon::start_page('Discussion Post Attachments',$js,\%parms);
3436:
3437: my $orig_subject = &unescape($env{'form.subject'});
3438: my $subject=&clear_out_html($orig_subject);
3439: $subject=~s/\n/\<br \/\>/g;
3440: $subject=&Apache::lontexconvert::msgtexconverted($subject);
3441: my $timestamp=$env{'form.timestamp'};
3442: my $numoldver=$env{'form.numoldver'};
3443:
3444: my $msg = '';
3445: my %attachments = ();
3446: my %currattach = ();
3447: if ($idx) {
3448: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
3449: }
3450: &Apache::lonenc::check_encrypt(\$symb);
3451:
3452: my $end_page =
3453: &Apache::loncommon::end_page();
3454:
3455: $r->print(<<END);
3456: $start_page
3457: $toolarge
3458: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
3459: <br />
3460: <h1>$lt{'clic'}</h1>
3461: END
3462: $r->print(&Apache::lonhtmlcommon::start_pick_box());
3463: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Subject')));
3464: $r->print('<b>'.$subject.'</b>');
3465: $r->print(&Apache::lonhtmlcommon::row_closure());
3466: $r->print(&Apache::lonhtmlcommon::row_title($lt{'adda'}));
3467: $r->print('<input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onclick="this.form.submit()" /> '.$attachmaxtext);
3468: if(($idx)||(ref($currnewattach) eq 'ARRAY') && (@{$currnewattach} > 0)){
3469: $r->print(&Apache::lonhtmlcommon::row_closure());
3470: $r->print(&Apache::lonhtmlcommon::row_title(&mt('Attachments')));
3471: if ($idx) {
3472: if ($attachmenturls) {
3473: my @currold = keys(%currattach);
3474: if (@currold > 0) {
3475: $r->print($lt{'thfo'}.'<br />'.$lt{'chth'}.'<br />'."\n");
3476: foreach my $id (@currold) {
3477: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
3478: $attachurl =~ m#/([^/]+)$#;
3479: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
3480: }
3481: $r->print("<br />");
3482: }
3483: }
3484: }
3485: }
3486: $r->print(&Apache::lonhtmlcommon::row_closure(1));
3487: $r->print(&Apache::lonhtmlcommon::end_pick_box());
3488: $r->print(<<END);
3489: <input type="hidden" name="subject" value="$env{'form.subject'}" />
3490: <input type="hidden" name="comment" value="$env{'form.comment'}" />
3491: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
3492: <input type="hidden" name="idx" value="$env{'form.idx'}" />
3493: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
3494: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
3495: <input type="hidden" name="blog" value="$env{'form.blog'}" />
3496: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
3497: END
3498: foreach my $item (@{$currnewattach}) {
3499: $r->print('<input type="hidden" name="currnewattach" value="'.$item.'" />'."\n");
3500: }
3501: foreach my $item (@{$currdelold}) {
3502: $r->print('<input type="hidden" name="deloldattach" value="'.$item.'" />'."\n");
3503: }
3504: $r->print(<<END);
3505: <input type="button" name="rtntoedit" value="$lt{'stch'}" onclick="setAction()" />
3506: </form>
3507: $end_page
3508: END
3509: return;
3510: }
3511:
3512: sub process_attachments {
3513: my ($currnewattach,$currdelold,$keepold) = @_;
3514:
3515: @{$currnewattach}=
3516: &Apache::loncommon::get_env_multiple('form.currnewattach');
3517: @{$currdelold}=
3518: &Apache::loncommon::get_env_multiple('form.deloldattach');
3519: if (exists($env{'form.delnewattach'})) {
3520: my @currdelnew =
3521: &Apache::loncommon::get_env_multiple('form.delnewattach');
3522: my @currnew = ();
3523: foreach my $newone (@{$currnewattach}) {
3524: my $delflag = 0;
3525: foreach my $item (@currdelnew) {
3526: if ($newone eq $item) {
3527: $delflag = 1;
3528: last;
3529: }
3530: }
3531: unless ($delflag) {
3532: push(@currnew, $newone);
3533: }
3534: }
3535: @{$currnewattach} = @currnew;
3536: }
3537: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
3538: }
3539:
3540: sub generate_attachments_button {
3541: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,
3542: $numoldver,$mode,$blockblog) = @_;
3543: my $origpage = $ENV{'REQUEST_URI'};
3544: my $att=$attachnum.' '.&mt("attachments");
3545: my %lt = &Apache::lonlocal::texthash(
3546: 'clic' => 'Add/remove attachments',
3547: );
3548: my $response = (<<END);
3549: <br />
3550: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
3551: <input type="button" value="$lt{'clic'}"
3552: onclick="if (typeof(document.mailform.onsubmit)=='function') {document.mailform.onsubmit();};this.form.comment.value=escape(document.mailform.comment.value);this.form.subject.value=escape(document.mailform.subject.value);
3553: END
3554: if (!$blockblog) {
3555: $response .= 'setblogvalue();';
3556: }
3557: unless ($mode eq 'board') {
3558: $response .= 'javascript:anonchk();';
3559: }
3560: $response .= (<<ENDATTACH);
3561: this.form.submit();" />
3562: <input type="hidden" name="origpage" value="$origpage" />
3563: <input type="hidden" name="idx" value="$idx" />
3564: <input type="hidden" name="timestamp" value="$now" />
3565: <input type="hidden" name="subject" />
3566: <input type="hidden" name="comment" />
3567: <input type="hidden" name="blog" value="0" />
3568: <input type="hidden" name="discuss" value="0" />
3569: <input type="hidden" name="numoldver" value="$numoldver" />
3570: ENDATTACH
3571: if (defined($deloldattach)) {
3572: if (@{$deloldattach} > 0) {
3573: foreach my $delatt (@{$deloldattach}) {
3574: $response .= '<input type="hidden" name="deloldattach" value="'.$delatt.'" />'."\n";
3575: }
3576: }
3577: }
3578: if (defined($currnewattach)) {
3579: if (@{$currnewattach} > 0) {
3580: foreach my $attach (@{$currnewattach}) {
3581: $response .= '<input type="hidden" name="currnewattach" value="'.$attach.'" />'."\n";
3582: }
3583: }
3584: }
3585: $response .= '</form>';
3586: return $response;
3587: }
3588:
3589: sub extract_attachments {
3590: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
3591: %{$attachments}=();
3592: &get_post_attachments($attachments,$attachmenturls);
3593: foreach my $id (sort(keys(%{$attachments}))) {
3594: if (exists($$attachments{$id}{$numoldver})) {
3595: if (defined($currdelold)) {
3596: if (@{$currdelold} > 0) {
3597: unless (grep/^$id$/,@{$currdelold}) {
3598: $$currattach{$id} = $$attachments{$id}{$numoldver};
3599: }
3600: } else {
3601: $$currattach{$id} = $$attachments{$id}{$numoldver};
3602: }
3603: } else {
3604: $$currattach{$id} = $$attachments{$id}{$numoldver};
3605: }
3606: }
3607: }
3608: my @attached = (sort { $a <=> $b } keys(%{$currattach}));
3609: if (@attached == 1) {
3610: my $id = $attached[0];
3611: my $attachurl;
3612: if ($attachmenturls =~ m/^<attachment id="0">/) {
3613: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3614: } else {
3615: $attachurl = $$attachments{$id}{'filename'};
3616: }
3617: $attachurl=~m|/([^/]+)$|;
3618: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
3619: $1.'</tt></a><br />';
3620: &Apache::lonnet::allowuploaded('/adm/feedback',
3621: $attachurl);
3622: } elsif (@attached > 1) {
3623: $$message.='<ol>';
3624: foreach my $attach (@attached) {
3625: my $id = $attach;
3626: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
3627: my ($fname)
3628: =($attachurl=~m|/([^/]+)$|);
3629: $$message .= '<li><a href="'.$attachurl.
3630: '"><tt>'.
3631: $fname.'</tt></a></li>';
3632: &Apache::lonnet::allowuploaded('/adm/feedback',
3633: $attachurl);
3634: }
3635: $$message .= '</ol>';
3636: }
3637: }
3638:
3639: sub construct_attachmenturl {
3640: my ($currnewattach,$keepold,$symb,$idx)=@_;
3641: my $oldattachmenturl;
3642: my $newattachmenturl;
3643: my $startnum = 0;
3644: my $currver = 0;
3645: if (($env{'form.editdisc'}) && ($idx)) {
3646: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3647: $env{'course.'.$env{'request.course.id'}.'.domain'},
3648: $env{'course.'.$env{'request.course.id'}.'.num'});
3649: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
3650: if ($contrib{$idx.':history'}) {
3651: if ($contrib{$idx.':history'} =~ /:/) {
3652: my @oldversions = split(/:/,$contrib{$idx.':history'});
3653: $currver = 1 + scalar(@oldversions);
3654: } else {
3655: $currver = 2;
3656: }
3657: } else {
3658: $currver = 1;
3659: }
3660: if ($oldattachmenturl) {
3661: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
3662: my %attachments = ();
3663: my $prevver = $currver-1;
3664: &get_post_attachments(\%attachments,$oldattachmenturl);
3665: my $numattach = scalar(keys(%attachments));
3666: $startnum += $numattach;
3667: foreach my $num (sort {$a <=> $b} keys(%attachments)) {
3668: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
3669: foreach my $item (sort {$a <=> $b} keys(%{$attachments{$num}})) {
3670: unless ($item eq 'filename') {
3671: $newattachmenturl .= '<post id="'.$item.'">'.$attachments{$num}{$item}.'</post>';
3672: }
3673: }
3674: if (grep/^$num$/,@{$keepold}) {
3675: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
3676: }
3677: $newattachmenturl .= '</attachment>';
3678: }
3679: } else {
3680: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
3681: unless (grep/^0$/,@{$keepold}) {
3682: $newattachmenturl .= '<post id="1">n</post>';
3683: }
3684: $newattachmenturl .= '</attachment>';
3685: $startnum ++;
3686: }
3687: }
3688: }
3689: for (my $i=0; $i<@{$currnewattach}; $i++) {
3690: my $attachnum = $startnum + $i;
3691: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
3692: }
3693: return $newattachmenturl;
3694: }
3695:
3696: sub add_blog_checkbox {
3697: my ($crstype) = @_;
3698: my $checkstatus;
3699: if ($env{'form.blog'}) {
3700: $checkstatus = 'checked="checked"';
3701: }
3702: my $output = '
3703: <script type="text/javascript">
3704: function setblogvalue() {
3705: if (document.mailform.blog.checked) {
3706: document.attachment.blog.value = 1;
3707: } else {
3708: document.attachment.blog.value = 0;
3709: }
3710: }
3711: </script><br />
3712: <label><input type="checkbox" name="blog" '.$checkstatus.' /> ';
3713: if ($crstype eq 'Community') {
3714: $output .= &mt('Add to my public community blog');
3715: } else {
3716: $output .= &mt('Add to my public course blog');
3717: }
3718: $output .= '</label><br />'."\n";
3719: return $output;
3720: }
3721:
3722: sub has_discussion {
3723: my $resourcesref = shift;
3724: my $navmap = Apache::lonnavmaps::navmap->new();
3725: if (defined($navmap)) {
3726: my @allres=$navmap->retrieveResources();
3727: foreach my $resource (@allres) {
3728: if ($resource->hasDiscussion()) {
3729: my $ressymb = $resource->wrap_symb();
3730: if (ref($resourcesref) eq 'ARRAY') {
3731: push(@{$resourcesref}, $ressymb);
3732: }
3733: }
3734: }
3735: } else {
3736: &Apache::lonnet::logthis('Has discussion check failed - could not create navmap object.');
3737: }
3738: return;
3739: }
3740:
3741: sub sort_filter_names {
3742: my ($sort_types,$role_types,$status_types,$crstype) = @_;
3743: if (ref($sort_types) eq 'HASH') {
3744: %{$sort_types} = (
3745: ascdate => 'Date order - oldest first',
3746: descdate => 'Date order - newest first',
3747: thread => 'Threaded',
3748: subject => 'By subject',
3749: username => 'By domain and username',
3750: lastfirst => 'By last name, first name'
3751: );
3752: }
3753: my @courseroles = qw(st in ta ep ad);
3754: if ($crstype eq 'Community') {
3755: push(@courseroles,'co');
3756: } else {
3757: push(@courseroles,'cc');
3758: }
3759: if (ref($role_types) eq 'HASH') {
3760: foreach my $role (@courseroles) {
3761: $role_types->{$role} = &Apache::lonnet::plaintext($role,$crstype);
3762: }
3763: $role_types->{'all'} = 'All roles';
3764: $role_types->{'cr'} = 'Custom role';
3765: }
3766: if (ref($status_types) eq 'HASH') {
3767: %{$status_types} = (
3768: all => 'Roles of any status',
3769: Active => 'Only active roles',
3770: Expired => 'Only past roles',
3771: Future => 'Only future roles',
3772: );
3773: }
3774: }
3775:
3776: sub handler {
3777: my $r = shift;
3778: if ($r->header_only) {
3779: &Apache::loncommon::content_type($r,'text/html');
3780: $r->send_http_header;
3781: return OK;
3782: }
3783:
3784: # --------------------------- Get query string for limited number of parameters
3785:
3786: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
3787: ['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']);
3788: my $group = $env{'form.group'};
3789: my %attachmax = (
3790: text => &mt('(128 KB max size)'),
3791: num => 131072,
3792: );
3793: if ($env{'form.editdisc'}) {
3794: if (!(&editing_allowed($env{'form.editdisc'},$env{'form.group'}))) {
3795: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3796: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3797: my $feedurl=&Apache::lonnet::clutter($url);
3798: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />', '0','0','','',$env{'form.previous'},undef,undef,undef,
3799: undef,undef,undef,$group);
3800: return OK;
3801: }
3802: }
3803: if ($env{'form.discsymb'}) {
3804: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
3805: my $readkey = $symb.'_read';
3806: my $chgcount = 0;
3807: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
3808: foreach my $key (keys(%env)) {
3809: if ($key =~ m/^form\.postunread_(\d+)/) {
3810: if ($readinghash{$readkey} =~ /\.$1\./) {
3811: $readinghash{$readkey} =~ s/\.$1\.//;
3812: $chgcount ++;
3813: }
3814: } elsif ($key =~ m/^form\.postread_(\d+)/) {
3815: unless ($readinghash{$readkey} =~ /\.$1\./) {
3816: $readinghash{$readkey} .= '.'.$1.'.';
3817: $chgcount ++;
3818: }
3819: }
3820: }
3821: if ($chgcount > 0) {
3822: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3823: \%readinghash,$env{'user.domain'},$env{'user.name'});
3824: }
3825: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
3826: '0','0','','',$env{'form.previous'},'','','',
3827: undef,undef,undef,$group);
3828: return OK;
3829: }
3830: if ($env{'form.allversions'}) {
3831: &Apache::loncommon::content_type($r,'text/html');
3832: &Apache::loncommon::no_cache($r);
3833: $r->send_http_header;
3834:
3835: # Breadcrumbs
3836: my $brcrum = [{'href' => '',
3837: 'text' => 'Discussion Post Versions'}];
3838:
3839: my %parms=();
3840: if ($env{'form.modal'} ne 'yes') { 'bread_crumbs' => $brcrum }
3841:
3842: $r->print(&Apache::loncommon::start_page('Discussion Post Versions',undef,\%parms));
3843:
3844: my $crs='/'.$env{'request.course.id'};
3845: if ($env{'request.course.sec'}) {
3846: $crs.='_'.$env{'request.course.sec'};
3847: }
3848: $crs=~s|_|/|g;
3849: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
3850: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
3851: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
3852: ($symb)=&get_feedurl_and_clean_symb($symb);
3853: my $ressymb = &wrap_symb($symb);
3854: my $group = $env{'form.group'};
3855: my $seeid;
3856: if (($group ne '') && (($ressymb =~ m|^bulletin___\d+___adm/wrapper/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard$|))) {
3857: if (&check_group_priv($group,'dgp') eq 'ok') {
3858: $seeid = 1;
3859: }
3860: } else {
3861: $seeid = &Apache::lonnet::allowed('rin',$crs);
3862: }
3863: if ($idx > 0) {
3864: my %messages = ();
3865: my %subjects = ();
3866: my %attachmsgs = ();
3867: my %allattachments = ();
3868: my %imsfiles = ();
3869: my ($screenname,$plainname,$showaboutme);
3870: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3871: $env{'course.'.$env{'request.course.id'}.'.domain'},
3872: $env{'course.'.$env{'request.course.id'}.'.num'});
3873: $r->print(&get_post_contents(\%contrib,$idx,$seeid,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname,\$showaboutme));
3874: }
3875: $r->print(&Apache::loncommon::end_page());
3876: return OK;
3877: }
3878: if ($env{'form.posterlist'}) {
3879: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3880: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
3881: $env{'form.sortposts'});
3882: return OK;
3883: }
3884: if ($env{'form.userpick'}) {
3885: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
3886: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
3887: my $numpicks = @posters;
3888: my %discinfo;
3889: $discinfo{$symb.'_userpick'} = join('&',@posters);
3890: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3891: \%discinfo,$env{'user.domain'},$env{'user.name'});
3892: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3893: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
3894: '',$numpicks,$group);
3895: return OK;
3896: }
3897: if ($env{'form.applysort'}) {
3898: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3899: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3900: '',$env{'form.previous'},$env{'form.sortposts'},
3901: $env{'form.rolefilter'},$env{'form.statusfilter'},
3902: $env{'form.sectionpick'},$env{'form.grouppick'},
3903: undef,$group);
3904: return OK;
3905: } elsif ($env{'form.cmd'} eq 'sortfilter') {
3906: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3907: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
3908: return OK;
3909: } elsif ($env{'form.navtime'}) {
3910: my %discinfo = ();
3911: my @resources = ();
3912: if (defined($env{'form.navmaps'})) {
3913: if ($env{'form.navmaps'} =~ /:/) {
3914: @resources = split(/:/,$env{'form.navmaps'});
3915: } else {
3916: @resources = ("$env{'form.navmaps'}");
3917: }
3918: } else {
3919: &has_discussion(\@resources);
3920: }
3921: my $numitems = @resources;
3922: my $feedurl = '/adm/navmaps';
3923: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
3924: my %lt = &Apache::lonlocal::texthash(
3925: 'mnpa' => 'Marked "New" posts as read in a total of',
3926: 'robb' => 'resources/bulletin boards.',
3927: 'twnp' => 'There are currently no resources or discussion boards with unread discussion postings.'
3928: );
3929: foreach my $res (@resources) {
3930: my $ressymb=$res;
3931: &Apache::lonenc::check_decrypt(\$ressymb);
3932: my $lastkey = $ressymb.'_lastread';
3933: $discinfo{$lastkey} = $env{'form.navtime'};
3934: }
3935: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
3936: if ($numitems > 0) {
3937: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3938: \%discinfo,$env{'user.domain'},$env{'user.name'});
3939: } else {
3940: $textline = "<b>$lt{'twnp'}</b>";
3941: }
3942: &Apache::loncommon::content_type($r,'text/html');
3943: $r->send_http_header;
3944: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
3945: my %onload;
3946:
3947: my $start_page=
3948: &Apache::loncommon::start_page('New posts marked as read',undef,
3949: {'redirect' => [2,$feedurl],
3950: 'only_body' => 1,
3951: 'add_entries' => \%onload});
3952: my $end_page = &Apache::loncommon::end_page();
3953: $r->print (<<ENDREDIR);
3954: $start_page
3955: <img align="right" src="$logo" />
3956: $textline
3957: <form name="reldt" action="$feedurl" target="loncapaclient">
3958: </form>
3959: <br />
3960: $end_page
3961: ENDREDIR
3962: return OK;
3963: } elsif ($env{'form.modifydisp'}) {
3964: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
3965: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
3966: split(/_/,$env{'form.changes'});
3967: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
3968: $dispchgB,$markchg,$toggchg,$feedurl);
3969: return OK;
3970: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
3971: $env{'form.allposts'} || $env{'form.onlyunread'} ||
3972: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
3973: $env{'form.toggon'} || $env{'form.markread'}) {
3974: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3975: my %discinfo;
3976: # ------------------------ Modify setting for read/unread toggle for each post
3977: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
3978: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
3979: # --------- Modify setting for identification of 'NEW' posts in this discussion
3980: if ($env{'form.markondisp'}) {
3981: $discinfo{$symb.'_lastread'} = time;
3982: $discinfo{$symb.'_markondisp'} = 1;
3983: }
3984: if ($env{'form.markonread'}) {
3985: if ( $env{'form.previous'} > 0 ) {
3986: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
3987: }
3988: $discinfo{$symb.'_markondisp'} = 0;
3989: }
3990: # --------------------------------- Modify display setting for this discussion
3991: if ($env{'form.allposts'}) {
3992: $discinfo{$symb.'_showonlyunread'} = 0;
3993: $discinfo{$symb.'_showonlyunmark'} = 0;
3994: }
3995: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
3996: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
3997: # ----------------------------------------------------- Mark new posts not NEW
3998: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
3999: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
4000: \%discinfo,$env{'user.domain'},$env{'user.name'});
4001: my $previous=$env{'form.previous'};
4002: if ($env{'form.markondisp'}) { $previous=undef; }
4003: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
4004: '0','0','','',$previous,'','','','','','',$group);
4005: return OK;
4006: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
4007: # ----------------------------------------------------------------- Hide/unhide
4008: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
4009: my ($symb,$idx)=split(/\:\:\:/,$entry);
4010: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4011:
4012: my $crs='/'.$env{'request.course.id'};
4013: if ($env{'request.course.sec'}) {
4014: $crs.='_'.$env{'request.course.sec'};
4015: }
4016: $crs=~s/\_/\//g;
4017: my $seeid=&Apache::lonnet::allowed('rin',$crs);
4018:
4019: if ($env{'form.hide'} && !$seeid && !(&editing_allowed($env{'form.hide'},$env{'form.group'}))) {
4020: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />', '0','0','','',$env{'form.previous'},'','','','',
4021: undef,undef,$group,);
4022: return OK;
4023: }
4024:
4025: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4026: $env{'course.'.$env{'request.course.id'}.'.domain'},
4027: $env{'course.'.$env{'request.course.id'}.'.num'});
4028:
4029: my $currenthidden=$contrib{'hidden'};
4030: my $currentstudenthidden=$contrib{'studenthidden'};
4031:
4032: if ($env{'form.hide'}) {
4033: $currenthidden.='.'.$idx.'.';
4034: unless ($seeid) {
4035: $currentstudenthidden.='.'.$idx.'.';
4036: }
4037: } else {
4038: $currenthidden=~s/\.$idx\.//g;
4039: }
4040: my %newhash=('hidden' => $currenthidden);
4041: if ( ($env{'form.hide'}) && (!$seeid) ) {
4042: $newhash{'studenthidden'} = $currentstudenthidden;
4043: }
4044: if ($env{'form.hide'}) {
4045: my $changelast = 0;
4046: my $newlast;
4047: ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4048: if ($changelast) {
4049: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4050: $env{'course.'.$env{'request.course.id'}.'.domain'},
4051: $env{'course.'.$env{'request.course.id'}.'.num'});
4052: }
4053: }
4054: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4055: $env{'course.'.$env{'request.course.id'}.'.domain'},
4056: $env{'course.'.$env{'request.course.id'}.'.num'});
4057:
4058: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
4059: '0','0','','',$env{'form.previous'},undef,undef,undef,
4060: undef,undef,undef,$group);
4061: return OK;
4062: } elsif (($env{'form.like'}) || ($env{'form.unlike'})) {
4063: # ----------------------------------------------------------------- Like/unlike
4064: my $entry=$env{'form.like'}?$env{'form.like'}:$env{'form.unlike'};
4065: my ($symb,$idx)=split(/\:\:\:/,$entry);
4066: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4067: my $status='OPEN';
4068: if ($Apache::lonhomework::parsing_a_problem ||
4069: $Apache::lonhomework::parsing_a_task) {
4070: $status=$Apache::inputtags::status[-1];
4071: }
4072: my $result;
4073: my $realsymb = &get_realsymb($symb);
4074: if (&discussion_vote_available($status,$realsymb)) {
4075: #
4076: # Likes and unlikes are in db-file "disclikes" of the course
4077: # The prefix is the $symb to identify the resource discussion,
4078: # and the $idx to identify the entry
4079: #
4080: my $prefix=$symb.':'.$idx.':';
4081: my %contrib=&Apache::lonnet::dump('disclikes',
4082: $env{'course.'.$env{'request.course.id'}.'.domain'},
4083: $env{'course.'.$env{'request.course.id'}.'.num'},
4084: '^'.$prefix);
4085:
4086: # Get current like or unlike status for the $idx for this user.
4087: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4088: my ($userlikes,$userunlikes);
4089: if (ref($contrib{$prefix.'likers'}) eq 'HASH') {
4090: if (exists($contrib{$prefix.'likers'}{$thisuser})) {
4091: $userlikes = 1;
4092: }
4093: }
4094: if (ref($contrib{$prefix.'unlikers'}) eq 'HASH') {
4095: if (exists($contrib{$prefix.'unlikers'}{$thisuser})) {
4096: $userunlikes = 1;
4097: }
4098: }
4099: # Get the current "likes" count
4100: my $likes=$contrib{$prefix.'likes'};
4101: # Find out if they already voted
4102: # Users cannot like a post twice, or unlike it twice.
4103: # They can change their mind, though.
4104: my $alreadyflag=0;
4105: my $thisuser=$env{'user.name'}.':'.$env{'user.domain'};
4106: if ($env{'form.like'}) {
4107: if ($userlikes) {
4108: $alreadyflag=1;
4109: } elsif ($userunlikes) {
4110: delete($contrib{$prefix.'unlikers'}{$thisuser});
4111: $likes++;
4112: } else {
4113: if (ref($contrib{$prefix.'likers'}) eq 'HASH') {
4114: $contrib{$prefix.'likers'}{$thisuser} = 1;
4115: } else {
4116: $contrib{$prefix.'likers'} = {$thisuser => 1};
4117: }
4118: $likes++;
4119: }
4120: } else {
4121: if ($userunlikes) {
4122: $alreadyflag=1;
4123: } elsif ($userlikes) {
4124: delete($contrib{$prefix.'likers'}{$thisuser});
4125: $likes--;
4126: } else {
4127: if (ref($contrib{$prefix.'unlikers'}) eq 'HASH') {
4128: $contrib{$prefix.'unlikers'}{$thisuser} = 1;
4129: } else {
4130: $contrib{$prefix.'unlikers'} = {$thisuser => 1};
4131: }
4132: $likes--;
4133: }
4134: }
4135: # $alreadyflag would be 1 if they tried to double-like or double-unlike
4136: unless ($alreadyflag) {
4137: my %newhash=($prefix.'likes' => $likes,
4138: $prefix.'likers' => $contrib{$prefix.'likers'},
4139: $prefix.'unlikers' => $contrib{$prefix.'unlikers'});
4140: # Store data in db-file "disclikes"
4141: if (&Apache::lonnet::put('disclikes',
4142: \%newhash,
4143: $env{'course.'.$env{'request.course.id'}.'.domain'},
4144: $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') {
4145: # Also store with the person who posted the liked/unliked entry
4146: if ($env{'form.like'}) {
4147: &storediscussionlikes(1,$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
4148: $result=&mt("Registered 'Like'");
4149: } else {
4150: &storediscussionlikes(-1,$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'});
4151: $result=&mt("Registered 'Unlike'");
4152: }
4153: } else {
4154: # Oops, something went wrong
4155: $result=&mt("Failed to register vote");
4156: }
4157: }
4158: } else {
4159: $result=&mt('Voting unavailable for this discussion');
4160: }
4161: &redirect_back($r,$feedurl,$result.'<br />',
4162: '0','0','','',$env{'form.previous'},undef,undef,undef,
4163: undef,undef,undef,$group);
4164: return OK;
4165: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
4166: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
4167: if ($env{'form.cmd'} eq 'threadedon') {
4168: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
4169: &Apache::lonnet::appenv({'environment.threadeddiscussion' => 'on'});
4170: } else {
4171: &Apache::lonnet::del('environment',['threadeddiscussion']);
4172: &Apache::lonnet::delenv('environment.threadeddiscussion');
4173: }
4174: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
4175: '0','0','','',$env{'form.previous'},undef,undef,undef,
4176: undef,undef,undef,$group);
4177: return OK;
4178: } elsif ($env{'form.deldisc'}) {
4179: # --------------------------------------------------------------- Hide for good
4180: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
4181: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
4182: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4183: $env{'course.'.$env{'request.course.id'}.'.domain'},
4184: $env{'course.'.$env{'request.course.id'}.'.num'});
4185: my ($changelast,$newlast) = &get_discussion_info($idx,%contrib);
4186: if ($changelast) {
4187: &Apache::lonnet::put('discussiontimes',{$symb => $newlast},
4188: $env{'course.'.$env{'request.course.id'}.'.domain'}, $env{'course.'.$env{'request.course.id'}.'.num'});
4189: }
4190: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
4191: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
4192: $env{'course.'.$env{'request.course.id'}.'.domain'},
4193: $env{'course.'.$env{'request.course.id'}.'.num'});
4194: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
4195: '0','0','','',$env{'form.previous'},undef,undef,undef,
4196: undef,undef,undef,$group);
4197: return OK;
4198: } elsif ($env{'form.preview'}) {
4199: # -------------------------------------------------------- User wants a preview
4200: &show_preview($r);
4201: return OK;
4202: } elsif ($env{'form.attach'}) {
4203: # -------------------------------------------------------- Work on attachments
4204: &Apache::loncommon::content_type($r,'text/html');
4205: $r->send_http_header;
4206: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
4207: my (@currnewattach,@currdelold,@keepold,$toolarge);
4208: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
4209: if (exists($env{'form.addnewattach.filename'})) {
4210: if (length($env{'form.addnewattach'})<=$attachmax{'num'}) {
4211: my $subdir = 'feedback/'.$env{'form.timestamp'};
4212: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
4213: push(@currnewattach, $newattachment);
4214: } else {
4215: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4216: }
4217: }
4218: my $attachmenturls;
4219: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
4220: my $idx = $env{'form.idx'};
4221: if ($idx) {
4222: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
4223: $env{'course.'.$env{'request.course.id'}.'.domain'},
4224: $env{'course.'.$env{'request.course.id'}.'.num'});
4225: $attachmenturls = $contrib{$idx.':attachmenturl'};
4226: }
4227: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
4228: $attachmenturls,$attachmax{'text'},$toolarge);
4229: return OK;
4230: } elsif ($env{'form.export'}) {
4231: &Apache::loncommon::content_type($r,'text/html');
4232: $r->send_http_header;
4233: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
4234: my $mode='board';
4235: my $status='OPEN';
4236: my $previous=$env{'form.previous'};
4237: if ($feedurl =~ /$LONCAPA::assess_re/) {
4238: $mode='problem';
4239: $status=$Apache::inputtags::status[-1];
4240: }
4241: my $discussion = &list_discussion($mode,$status,$symb);
4242: my $start_page =
4243: &Apache::loncommon::start_page('Resource Feedback and Discussion');
4244: my $end_page =
4245: &Apache::loncommon::end_page();
4246: $r->print($start_page.$discussion.$end_page);
4247: return OK;
4248:
4249: } elsif ($env{'form.undeleteall'}) {
4250: &Apache::loncommon::content_type($r,'text/html');
4251: $r->send_http_header;
4252: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.undeleteall'});
4253: $r->print(&Apache::loncommon::start_page('Undelete all deleted discussion entries'));
4254: if (&Apache::lonnet::allowed('rin',$env{'request.course.id'})) {
4255: if (&Apache::lonnet::store({'deleted' => ''},$symb,$env{'request.course.id'},
4256: $env{'course.'.$env{'request.course.id'}.'.domain'},
4257: $env{'course.'.$env{'request.course.id'}.'.num'}) eq 'ok') {
4258: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Undeleted all entries")));
4259: } else {
4260: $r->print(&Apache::lonhtmlcommon::confirm_success(&mt("Failed to undelete entries"),1));
4261: }
4262: $r->print("<br /><a href='$feedurl'>".&mt("Return and reload")."</a>");
4263: }
4264: $r->print(&Apache::loncommon::end_page());
4265: return OK;
4266: } else {
4267: # ------------------------------------------------------------- Normal feedback
4268: my $feedurl=$env{'form.postdata'};
4269: $feedurl=~s/^https?\:\/\///;
4270: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
4271: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
4272: $feedurl=~s/\?.+$//;
4273:
4274: my $symb;
4275: if ($env{'form.replydisc'}) {
4276: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
4277: } elsif ($env{'form.editdisc'}) {
4278: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
4279: } elsif ($env{'form.origpage'}) {
4280: $symb="";
4281: } elsif ($env{'form.sendmessageonly'}) {
4282: $symb=(split(/\:\:\:/,$env{'form.sendmessageonly'}))[0];
4283: } else {
4284: $symb=&Apache::lonnet::symbread($feedurl);
4285: }
4286: unless ($symb) {
4287: $symb=$env{'form.symb'};
4288: }
4289: if (defined($symb)) {
4290: ($symb,$feedurl)=&get_feedurl_and_clean_symb($symb);
4291: } else {
4292: # backward compatibility (bulletin boards used to be 'wrapped')
4293: &Apache::lonenc::check_decrypt(\$feedurl);
4294: &dewrapper(\$feedurl);
4295: }
4296: my $goahead=1;
4297: if ($feedurl=~/$LONCAPA::assess_re/) {
4298: unless ($symb) { $goahead=0; }
4299: }
4300: if (!$goahead) {
4301: # Ambiguous Problem Resource
4302: $r->internal_redirect('/adm/ambiguous');
4303: return OK;
4304: }
4305: # Go ahead with feedback, no ambiguous reference
4306: unless (
4307: (
4308: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
4309: )
4310: ||
4311: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
4312: ||
4313: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
4314: ) {
4315: &Apache::loncommon::content_type($r,'text/html');
4316: $r->send_http_header;
4317: # Unable to give feedback
4318: &Apache::lonenc::check_encrypt(\$feedurl);
4319: &no_redirect_back($r,$feedurl);
4320: return OK;
4321: }
4322: # --------------------------------------------------- Print login screen header
4323: unless ($env{'form.sendit'}) {
4324: &Apache::lonenc::check_encrypt(\$feedurl);
4325: &Apache::loncommon::content_type($r,'text/html');
4326: $r->send_http_header;
4327: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
4328: my ($blocked,$blocktext) =
4329: &Apache::loncommon::blocking_status('boards');
4330: if ($blocked) {
4331: $r->print(&blocked_reply_or_edit($blocktext));
4332: return OK;
4333: }
4334: }
4335: my $options=&screen_header($feedurl,$symb,$group);
4336: if ($options) {
4337: &mail_screen($r,$feedurl,$options,$symb,$attachmax{'text'});
4338: } else {
4339: &fail_redirect($r,$feedurl);
4340: }
4341: return OK;
4342: }
4343:
4344: # Get previous user input
4345: my $prevattempts=&Apache::loncommon::get_previous_attempt(
4346: $symb,$env{'user.name'},$env{'user.domain'},
4347: $env{'request.course.id'});
4348:
4349: # Get output from resource
4350: &Apache::lonenc::check_encrypt(\$feedurl);
4351: my $usersaw=&resource_output($feedurl);
4352:
4353: # Get resource answer (need to allow student to view grades for this to work)
4354: &Apache::lonnet::appenv({'allowed.vgr'=>'F'});
4355: my $usersymb = &Apache::lonenc::check_encrypt($symb);
4356: my $useranswer=
4357: &Apache::loncommon::get_student_answers(
4358: $usersymb,$env{'user.name'},$env{'user.domain'},
4359: $env{'request.course.id'});
4360: &Apache::lonnet::delenv('allowed.vgr');
4361: # Get attachments, if any, and not too large
4362: my $attachmenturl='';
4363: my $toolarge='';
4364: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
4365: ($env{'form.replydisc'})) {
4366: my ($symb,$idx);
4367: if ($env{'form.replydisc'}) {
4368: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
4369: } elsif ($env{'form.editdisc'}) {
4370: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
4371: } elsif ($env{'form.origpage'}) {
4372: $symb = $env{'form.symb'};
4373: }
4374: &Apache::lonenc::check_decrypt(\$symb);
4375: my @currnewattach = ();
4376: my @deloldattach = ();
4377: my @keepold = ();
4378: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
4379: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
4380: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
4381: } elsif ($env{'form.attachment.filename'}) {
4382: if (length($env{'form.attachment'})<=$attachmax{'num'}) {
4383: my $now = time;
4384: my $subdir = 'feedback/'.$now;
4385: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,$subdir);
4386: } else {
4387: $toolarge = '<p><span class="LC_warning">'.&mt('Attachment not included - exceeded permitted length').'</span><br /></p>';
4388: }
4389: }
4390: # Filter HTML out of message (could be nasty)
4391: my $override;
4392: if ($env{'form.discuss'} =~ /^(?:author|question|course|policy)$/) {
4393: $override = 1;
4394: }
4395: my $message=&clear_out_html($env{'form.comment'},$override);
4396:
4397: # Assemble email
4398: my ($email,$citations)=&assemble_email($message,$prevattempts,
4399: $usersaw,$useranswer);
4400:
4401: # Who gets this?
4402: my ($typestyle,%to) = &Apache::lonmsg::decide_receiver($feedurl);
4403:
4404: # Actually send mail
4405: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'}),
4406: $feedurl,$email,$citations,
4407: $attachmenturl,$usersymb,%to);
4408:
4409: # Discussion? Store that.
4410: my $numpost=0;
4411: if ( ($env{'form.discuss'} ne ''
4412: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
4413: || $env{'form.anondiscuss'} ne '') {
4414: my $subject = &clear_out_html($env{'form.subject'});
4415: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
4416: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
4417: $subject,$group);
4418: $numpost++;
4419: }
4420:
4421: # Add to blog?
4422:
4423: my $blog='';
4424: if ($env{'form.blog'}) {
4425: my $subject = &clear_out_html($env{'form.subject'});
4426: $status.=&Apache::lonrss::addentry($env{'user.name'},
4427: $env{'user.domain'},
4428: 'CourseBlog_'.$env{'request.course.id'},
4429: $subject,$message,$feedurl,'public');
4430: if (&Apache::loncommon::course_type() eq 'Community') {
4431: $blog='<br />'.&mt('Added to my community blog').'<br />';
4432: } else {
4433: $blog='<br />'.&mt('Added to my course blog').'<br />';
4434: }
4435: }
4436:
4437: # Receipt screen and redirect back to where came from
4438: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'},undef,undef,undef,undef,undef,undef,$group,$toolarge);
4439: }
4440: return OK;
4441: }
4442:
4443: sub blocked_reply_or_edit {
4444: my ($blocktext) = @_;
4445: return
4446: &Apache::loncommon::start_page('Resource Feedback and Discussion').
4447: $blocktext.'<br /><br /><a href="javascript:history.go(-1)">'.
4448: &mt('Back to previous page').
4449: &Apache::loncommon::end_page();
4450: }
4451:
4452: sub wrap_symb {
4453: my ($ressymb)=@_;
4454: if ($ressymb =~ /bulletin___\d+___/) {
4455: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
4456: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4457: }
4458: }
4459: return $ressymb;
4460: }
4461: sub dewrapper {
4462: my ($feedurl)=@_;
4463: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
4464: $$feedurl=~s|^/adm/wrapper||;
4465: }
4466: }
4467:
4468: sub get_feedurl {
4469: my ($symb)=@_;
4470: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
4471: my $feedurl = &Apache::lonnet::clutter($url);
4472: &dewrapper(\$feedurl);
4473: return $feedurl;
4474: }
4475:
4476: sub get_feedurl_and_clean_symb {
4477: my ($symb)=@_;
4478: &Apache::lonenc::check_decrypt(\$symb);
4479: # backward compatibility (bulletin boards used to be 'wrapped')
4480: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
4481: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
4482: }
4483: my $feedurl = &get_feedurl($symb);
4484: return ($symb,$feedurl);
4485: }
4486:
4487: sub editing_allowed {
4488: my ($postid,$group) = @_;
4489: $postid = &unescape($postid);
4490: my $can_edit = 0;
4491: if ($group ne '') {
4492: my $cdom = $env{'course.'.$env{'request.course.id'}.'.domain'};
4493: my $cnum = $env{'course.'.$env{'request.course.id'}.'.num'};
4494: if ($postid =~ m|^bulletin___\d+___adm/wrapper(/adm/\Q$cdom\E/\Q$cnum\E/\d+/bulletinboard)|) {
4495: if (&check_group_priv($group,'egp') eq 'ok') {
4496: $can_edit = 1;
4497: }
4498: return $can_edit;
4499: }
4500: }
4501: my $cid = $env{'request.course.id'};
4502: my $role = (split(/\./,$env{'request.role'}))[0];
4503: my $section = $env{'request.course.sec'};
4504: my $allow_editing_config =
4505: $env{'course.'.$cid.'.allow_discussion_post_editing'};
4506: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
4507: $can_edit = 1;
4508: } else {
4509: foreach my $editor (split(/,/,$allow_editing_config)) {
4510: my ($editor_role,$editor_sec) = split(/:/,$editor);
4511: if ($editor_role eq $role
4512: && defined($editor_sec)
4513: && defined($section)
4514: && $editor_sec eq $section) {
4515: $can_edit = 1;
4516: last;
4517: }
4518: if ($editor_role eq $role
4519: && !defined($editor_sec)) {
4520: $can_edit = 1;
4521: }
4522: }
4523: }
4524: return $can_edit;
4525: }
4526:
4527: sub check_group_priv {
4528: my ($group,$grp_priv) = @_;
4529: foreach my $priv ('mdg','vcg') {
4530: my $checkcourse = $env{'request.course.id'}.
4531: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:'');
4532: if (&Apache::lonnet::allowed($priv,$checkcourse)) {
4533: return 'ok';
4534: }
4535: }
4536: if ($grp_priv && $group ne '') {
4537: if (&Apache::lonnet::allowed($grp_priv,$env{'request.course.id'}.'/'.$group)) {
4538: return 'ok';
4539: }
4540: }
4541: return '';
4542: }
4543:
4544: sub group_args {
4545: my ($group) = @_;
4546: if ($group eq '') { return ''; }
4547: my $extra_args = '&group='.$group;
4548: if (exists($env{'form.ref'})) {
4549: $extra_args .= '&ref='.$env{'form.ref'};
4550: }
4551: return $extra_args;
4552: }
4553:
4554: sub get_resource_title {
4555: my ($symb,$feedurl) = @_;
4556: my ($restitle,$plainurl);
4557: if (defined($symb)) {
4558: my $plain_symb = &Apache::lonenc::check_decrypt($symb);
4559: $restitle = &Apache::lonnet::gettitle($plain_symb);
4560: }
4561: if (defined($feedurl)) {
4562: $plainurl = &Apache::lonenc::check_decrypt($feedurl);
4563: }
4564: if (!defined($restitle)) {
4565: if (defined($feedurl)) {
4566: $restitle = &Apache::lonnet::gettitle($plainurl);
4567: }
4568: }
4569: if ($plainurl ne $feedurl) {
4570: my ($plain_filename) = ($plainurl =~ m-/([^/]+)$-);
4571: if ($plain_filename eq $restitle) {
4572: $restitle = &mt('Untitled resource');
4573: }
4574: }
4575: if ($restitle eq '') {
4576: $restitle = &mt('Untitled resource');
4577: }
4578: return $restitle;
4579: }
4580:
4581: 1;
4582: __END__
4583:
4584:
4585: =pod
4586:
4587: =head1 NAME
4588:
4589: Apache::lonfeedback.pm
4590:
4591: =head1 SYNOPSIS
4592:
4593: Handles feedback from students to instructors and system administrators.
4594:
4595: Provides a screenshot of the current resource, as well as previous attempts if the resource was a homework.
4596:
4597: Used by lonmsg.pm.
4598:
4599: This is part of the LearningOnline Network with CAPA project
4600: described at http://www.lon-capa.org.
4601:
4602: =head1 OVERVIEW
4603:
4604: None
4605:
4606: =head1 SUBROUTINES
4607:
4608: =over
4609:
4610: =item discussion_open()
4611:
4612: =item discussion_visible()
4613:
4614: =item discussion_vote_available()
4615:
4616: =item get_realsymb()
4617:
4618: =item list_discussion()
4619:
4620: =item send_feedback_link()
4621:
4622: =item send_message_link()
4623:
4624: =item action_links_bar()
4625:
4626: =item postingform_display()
4627:
4628: =item build_posting_display
4629:
4630: =item filter_regexp()
4631:
4632: =item get_post_contents()
4633:
4634: =item replicate_attachments()
4635:
4636: =item mail_screen()
4637:
4638: =item print_display_options()
4639:
4640: =item print_sortfilter_options()
4641:
4642: =item print_showposters()
4643:
4644: =item get_post_versions()
4645:
4646: =item get_post_attachments()
4647:
4648: =item fail_redirect()
4649:
4650: =item redirect_back()
4651:
4652: =item no_redirect_back()
4653:
4654: =item screen_header()
4655:
4656: =item resource_output()
4657:
4658: =item clear_out_html()
4659:
4660: =item assemble_email()
4661:
4662: =item feedback_available()
4663:
4664: =item send_msg()
4665:
4666: =item adddiscuss()
4667:
4668: =item get_discussion_info()
4669:
4670: =item show_preview()
4671:
4672: =item newline_to_br()
4673:
4674: =item tidy_html()
4675:
4676: =item generate_preview_button()
4677:
4678: =item modify_attachments()
4679:
4680: =item process_attachments()
4681:
4682: =item generate_attachments_button()
4683:
4684: =item extract_attachments()
4685:
4686: =item construct_attachmenturl()
4687:
4688: =item add_blog_checkbox()
4689:
4690: =item has_discussion()
4691:
4692: =item sort_filter_names()
4693:
4694: =item handler()
4695:
4696: =item blocked_reply_or_edit()
4697:
4698: =item wrap_symb()
4699:
4700: =item dewrapper()
4701:
4702: =item get_feedurl()
4703:
4704: =item get_feedurl_and_clean_symb()
4705:
4706: =item editing_allowed()
4707:
4708: =item check_group_priv()
4709:
4710: =item group_args()
4711:
4712: =item get_resource_title()
4713:
4714: =back
4715:
4716: =cut
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