1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.207 2006/06/30 04:49:03 albertel 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 Apache::lonspeller();
45: use Cwd;
46: use lib '/home/httpd/lib/perl/';
47: use LONCAPA;
48:
49: sub discussion_open {
50: my ($status,$symb)=@_;
51: if ($env{'request.role.adv'}) { return 1; }
52: if (defined($status) &&
53: !($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
54: || $status eq 'OPEN')) {
55: return 0;
56: }
57: my $close=&Apache::lonnet::EXT('resource.0.discussend',$symb);
58: if (defined($close) && $close ne '' && $close < time) {
59: return 0;
60: }
61: return 1;
62: }
63:
64: sub discussion_visible {
65: my ($status)=@_;
66: if (not &discussion_open($status)) {
67: my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
68: if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden)) {
69: if (!$env{'request.role.adv'}) { return 0; }
70: }
71: }
72: return 1;
73: }
74:
75: sub list_discussion {
76: my ($mode,$status,$ressymb,$imsextras)=@_;
77: my $outputtarget=$env{'form.grade_target'};
78: if (defined($env{'form.export'})) {
79: if($env{'form.export'}) {
80: $outputtarget = 'export';
81: }
82: }
83: if (defined($imsextras)) {
84: if ($$imsextras{'caller'} eq 'imsexport') {
85: $outputtarget = 'export';
86: }
87: }
88: if (not &discussion_visible($status)) { return ''; }
89: my @bgcols = ("#cccccc","#eeeeee");
90: my $discussiononly=0;
91: if ($mode eq 'board') { $discussiononly=1; }
92: unless ($env{'request.course.id'}) { return ''; }
93: my $crs='/'.$env{'request.course.id'};
94: my $cid=$env{'request.course.id'};
95: if ($env{'request.course.sec'}) {
96: $crs.='_'.$env{'request.course.sec'};
97: }
98: $crs=~s/\_/\//g;
99: unless ($ressymb) { $ressymb=&Apache::lonnet::symbread(); }
100: unless ($ressymb) { return ''; }
101: $ressymb=&wrap_symb($ressymb);
102: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
103: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
104: && ($ressymb=~/\.(problem|exam|quiz|assess|survey|form|task)$/));
105:
106: my %usernamesort = ();
107: my %namesort =();
108: my %subjectsort = ();
109:
110: # Get discussion display settings for this discussion
111: my $lastkey = $ressymb.'_lastread';
112: my $showkey = $ressymb.'_showonlyunread';
113: my $markkey = $ressymb.'_showonlyunmark',
114: my $visitkey = $ressymb.'_visit';
115: my $ondispkey = $ressymb.'_markondisp';
116: my $userpickkey = $ressymb.'_userpick';
117: my $toggkey = $ressymb.'_readtoggle';
118: my $readkey = $ressymb.'_read';
119: $ressymb=$encsymb;
120: my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
121: my %discinfo = ();
122: my $showonlyunread = 0;
123: my $showunmark = 0;
124: my $markondisp = 0;
125: my $prevread = 0;
126: my $previous = 0;
127: my $visit = 0;
128: my $newpostsflag = 0;
129: my @posters = split/\&/,$dischash{$userpickkey};
130:
131: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
132: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','totposters']);
133: my $sortposts = $env{'form.sortposts'};
134: my $statusfilter = $env{'form.statusfilter'};
135: my @sectionpick = ();
136: if ($env{'form.sectionpick'} =~ /,/) {
137: @sectionpick = split/,/,$env{'form.sectionpick'};
138: } else {
139: $sectionpick[0] = $env{'form.sectionpick'};
140: }
141: my @rolefilter = ();
142: if ($env{'form.rolefilter'} =~ /,/) {
143: @rolefilter = split/,/,$env{'form.rolefilter'};
144: } else {
145: $rolefilter[0] = $env{'form.rolefilter'};
146: }
147: my $totposters = $env{'form.totposters'};
148: $previous = $env{'form.previous'};
149: if ($previous > 0) {
150: $prevread = $previous;
151: } elsif (defined($dischash{$lastkey})) {
152: unless ($dischash{$lastkey} eq '') {
153: $prevread = $dischash{$lastkey};
154: }
155: }
156:
157: # Get information about students and non-students in course for filtering display of posts
158: my %roleshash = ();
159: my %roleinfo = ();
160: if ($env{'form.rolefilter'}) {
161: %roleshash = &Apache::lonnet::dump('nohist_userroles',
162: $env{'course.'.$cid.'.domain'},
163: $env{'course.'.$cid.'.num'});
164: foreach (keys %roleshash) {
165: my ($role,$uname,$udom,$sec) = split/:/,$_;
166: if ($role =~ /^cr/) {
167: $role = 'cr';
168: }
169: my ($end,$start) = split/:/,$roleshash{$_};
170: my $now = time;
171: my $status = 'Active';
172: if (($now < $start) || ($end > 0 && $now > $end)) {
173: $status = 'Expired';
174: }
175: if ($uname && $udom) {
176: push @{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status;
177: }
178: }
179: my ($classlist) = &Apache::loncoursedata::get_classlist(
180: $env{'course.'.$cid.'.domain'},
181: $env{'course.'.$cid.'.num'});
182: my $sec_index = &Apache::loncoursedata::CL_SECTION();
183: my $status_index = &Apache::loncoursedata::CL_STATUS();
184: while (my ($student,$data) = each %$classlist) {
185: my ($section,$status) = ($data->[$sec_index],
186: $data->[$status_index]);
187: push @{$roleinfo{$student}}, 'st:'.$section.':'.$status;
188: }
189: }
190:
191: # Get discussion display default settings for user
192: if ($env{'environment.discdisplay'} eq 'unread') {
193: $showonlyunread = 1;
194: }
195: if ($env{'environment.discmarkread'} eq 'ondisp') {
196: $markondisp = 1;
197: }
198:
199: # Override user's default if user specified display setting for this discussion
200: if (defined($dischash{$ondispkey})) {
201: unless ($dischash{$ondispkey} eq '') {
202: $markondisp = $dischash{$ondispkey};
203: }
204: }
205: if ($markondisp) {
206: $discinfo{$lastkey} = time;
207: }
208:
209: if (defined($dischash{$showkey})) {
210: unless ($dischash{$showkey} eq '') {
211: $showonlyunread = $dischash{$showkey};
212: }
213: }
214:
215: if (defined($dischash{$markkey})) {
216: unless ($dischash{$markkey} eq '') {
217: $showunmark = $dischash{$markkey};
218: }
219: }
220:
221: if (defined($dischash{$visitkey})) {
222: unless ($dischash{$visitkey} eq '') {
223: $visit = $dischash{$visitkey};
224: }
225: }
226: $visit ++;
227:
228: my $seeid=&Apache::lonnet::allowed('rin',$crs);
229: my @discussionitems=();
230: my %shown = ();
231: my @posteridentity=();
232:
233: my $current=0;
234: my $visible=0;
235: my @depth=();
236: my @replies = ();
237: my %alldiscussion=();
238: my %imsitems=();
239: my %imsfiles=();
240: my %notshown = ();
241: my %newitem = ();
242: my $maxdepth=0;
243: my %anonhash=();
244: my $anoncnt=0;
245: my $target='';
246: unless ($env{'browser.interface'} eq 'textual' ||
247: $env{'environment.remote'} eq 'off' ) {
248: $target='target="LONcom"';
249: }
250:
251: my $now = time;
252: $discinfo{$visitkey} = $visit;
253:
254: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
255: &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,$prevread,$sortposts,$encsymb,$target,$readkey,$showunmark,$showonlyunread,$totposters,\@rolefilter,\@sectionpick,$statusfilter,$toggkey,$outputtarget,\%anonhash,$anoncnt);
256:
257: my $discussion='';
258: my $manifestfile;
259: my $manifestok=0;
260: my $tempexport;
261: my $imsresources;
262: my $copyresult;
263:
264: my $function = &Apache::loncommon::get_users_function();
265: my $color = &Apache::loncommon::designparm($function.'.tabbg',
266: $env{'user.domain'});
267: my %lt = &Apache::lonlocal::texthash(
268: 'cuse' => 'Current discussion settings',
269: 'allposts' => 'All posts',
270: 'unread' => 'New posts only',
271: 'unmark' => 'Unread only',
272: 'ondisp' => 'Once displayed',
273: 'onmark' => 'Once marked not NEW',
274: 'toggoff' => 'Off',
275: 'toggon' => 'On',
276: 'disa' => 'Posts to be displayed',
277: 'npce' => 'Posts cease to be marked "NEW"',
278: 'epcb' => 'Each post can be toggled read/unread',
279: 'chgt' => 'Change',
280: 'disp' => 'Display',
281: 'nolo' => 'Not new',
282: 'togg' => 'Toggle read/unread',
283: );
284:
285: my $currdisp = $lt{'allposts'};
286: my $currmark = $lt{'onmark'};
287: my $currtogg = $lt{'toggoff'};
288: my $dispchange = $lt{'unread'};
289: my $markchange = $lt{'ondisp'};
290: my $toggchange = $lt{'toggon'};
291: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
292: my $displinkA = 'onlyunread';
293: my $displinkB = 'onlyunmark';
294: my $marklink = 'markondisp';
295: my $togglink = 'toggon';
296:
297: if ($markondisp) {
298: $currmark = $lt{'ondisp'};
299: $markchange = $lt{'onmark'};
300: $marklink = 'markonread';
301: }
302:
303: if ($showonlyunread) {
304: $currdisp = $lt{'unread'};
305: $dispchange = $lt{'allposts'};
306: $displinkA = 'allposts';
307: }
308:
309: if ($showunmark) {
310: $currdisp = $lt{'unmark'};
311: $dispchange = $lt{'unmark'};
312: $displinkA='allposts';
313: $displinkB='onlyunread';
314: $showonlyunread = 0;
315: }
316:
317: if ($dischash{$toggkey}) {
318: $currtogg = $lt{'toggon'};
319: $toggchange = $lt{'toggoff'};
320: $togglink = 'toggoff';
321: }
322:
323: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
324:
325: if ($newpostsflag) {
326: $chglink .= '&previous='.$prevread;
327: }
328:
329: if ($visible) {
330: # Print the discusssion
331: if ($outputtarget eq 'tex') {
332: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
333: '\textbf{DISCUSSIONS}\makebox[2 cm][b]{\hrulefill}'.
334: '\vskip 0 mm\noindent\textbf{'.$lt{'cuse'}.'}:\vskip 0 mm'.
335: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
336: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
337: } elsif ($outputtarget eq 'export') {
338: # Create temporary directory if this is an export
339: my $now = time;
340: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
341: $tempexport = $$imsextras{'tempexport'};
342: if (!-e $tempexport) {
343: mkdir($tempexport,0700);
344: }
345: $tempexport .= '/'.$$imsextras{'count'};
346: if (!-e $tempexport) {
347: mkdir($tempexport,0700);
348: }
349: } else {
350: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
351: if (!-e $tempexport) {
352: mkdir($tempexport,0700);
353: }
354: $tempexport .= '/'.$now;
355: if (!-e $tempexport) {
356: mkdir($tempexport,0700);
357: }
358: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
359: }
360: if (!-e $tempexport) {
361: mkdir($tempexport,0700);
362: }
363: # open manifest file
364: my $manifest = '/imsmanifest.xml';
365: my $manifestfilename = $tempexport.$manifest;
366: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
367: $manifestok=1;
368: print $manifestfile qq|
369: <?xml version="1.0" encoding="UTF-8"?>
370: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
371: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
372: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
373: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
374: <organizations default="$ressymb">
375: <organization identifier="$ressymb">
376: <title>Discussion for $ressymb</title>\n|;
377: } else {
378: $discussion .= 'An error occurred opening the manifest file.<br />';
379: }
380: } else {
381: my $colspan=$maxdepth+1;
382: $discussion.= qq|
383: <script>
384: function studentdelete (symb,idx,newflag,previous) {
385: var symbparm = symb+':::'+idx
386: var prevparm = ""
387: if (newflag == 1) {
388: prevparm = "&previous="+previous
389: }
390: if (confirm("Are you sure you want to delete this post?\\nDeleted posts will no longer be visible to you and other students,\\nbut will continue to be visible to your instructor")) {
391: document.location.href = "/adm/feedback?hide="+symbparm+prevparm
392: }
393: }
394: </script>
395: |;
396: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" ><table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
397: $discussion .='<tr><td bgcolor="#DDDDBB" colspan="'.$colspan.'">'.
398: '<table border="0" width="100%" bgcolor="#DDDDBB"><tr>';
399: my $escsymb=&escape($ressymb);
400: if ($visible>2) {
401: $discussion.='<td align="left">'.
402: '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
403: if ($newpostsflag) {
404: $discussion .= '&previous='.$prevread;
405: }
406: $discussion .='">'.&mt('Threaded View').'</a> '.
407: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
408: if ($newpostsflag) {
409: $discussion .= '&previous='.$prevread;
410: }
411: $discussion .='">'.&mt('Chronological View').'</a>
412: <a href= "/adm/feedback?cmd=sortfilter&symb='.$escsymb;
413: if ($newpostsflag) {
414: $discussion .= '&previous='.$prevread;
415: }
416: $discussion .='">'.&mt('Sorting/Filtering options').'</a>  ';
417: } else {
418: $discussion .= '<td align="left">';
419: }
420: $discussion .='<a href= "/adm/feedback?export='.$escsymb;
421: if ($newpostsflag) {
422: $discussion .= '&previous='.$prevread;
423: }
424: $discussion .= '">'.&mt('Export').'?</a> </td>';
425: if ($newpostsflag) {
426: if (!$markondisp) {
427: $discussion .='<td align="right"><a href="/adm/preferences?action=changediscussions">'.
428: &mt('Preferences on what is marked as NEW').
429: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb.'">'.&mt('Mark NEW posts no longer new').'</a>';
430: } else {
431: $discussion .= '<td> </td>';
432: }
433: } else {
434: $discussion .= '<td> </td>';
435: }
436: $discussion .= '</tr></table></td></tr>';
437:
438: my $numhidden = keys %notshown;
439: if ($numhidden > 0) {
440: my $colspan = $maxdepth+1;
441: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
442: '<a href="/adm/feedback?allposts=1&symb='.$escsymb;
443: if ($newpostsflag) {
444: $discussion .= '&previous='.$prevread;
445: }
446: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
447: $numhidden.' ';
448: if ($showunmark) {
449: $discussion .= &mt('posts previously marked read');
450: } else {
451: $discussion .= &mt('previously viewed posts');
452: }
453: $discussion .= '<br/></td></tr>';
454: }
455: }
456:
457: # Choose sort mechanism
458: my @showposts = ();
459: if ($sortposts eq 'descdate') {
460: @showposts = (sort { $b <=> $a } keys %alldiscussion);
461: } elsif ($sortposts eq 'thread') {
462: @showposts = (sort { $a <=> $b } keys %alldiscussion);
463: } elsif ($sortposts eq 'subject') {
464: foreach (sort keys %subjectsort) {
465: push @showposts, @{$subjectsort{$_}};
466: }
467: } elsif ($sortposts eq 'username') {
468: foreach my $domain (sort keys %usernamesort) {
469: foreach (sort keys %{$usernamesort{$domain}}) {
470: push @showposts, @{$usernamesort{$domain}{$_}};
471: }
472: }
473: } elsif ($sortposts eq 'lastfirst') {
474: foreach my $last (sort keys %namesort) {
475: foreach (sort keys %{$namesort{$last}}) {
476: push @showposts, @{$namesort{$last}{$_}};
477: }
478: }
479: } else {
480: @showposts = (sort { $a <=> $b } keys %alldiscussion);
481: }
482: my $currdepth = 0;
483: my $firstidx = $alldiscussion{$showposts[0]};
484: foreach (@showposts) {
485: unless (($sortposts eq 'thread') || (($sortposts eq '') && ($env{'environment.threadeddiscussion'})) || ($outputtarget eq 'export')) {
486: $alldiscussion{$_} = $_;
487: }
488: unless ( ($notshown{$alldiscussion{$_}} eq '1') || ($shown{$alldiscussion{$_}} == 0) ) {
489: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
490: $discussion.="\n<tr>";
491: }
492: my $thisdepth=$depth[$alldiscussion{$_}];
493: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
494: for (1..$thisdepth) {
495: $discussion.='<td> </td>';
496: }
497: }
498: my $colspan=$maxdepth-$thisdepth+1;
499: if ($outputtarget eq 'tex') {
500: #cleanup block
501: $discussionitems[$alldiscussion{$_}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
502: $discussionitems[$alldiscussion{$_}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
503: my $threadinsert='';
504: if ($thisdepth > 0) {
505: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
506: }
507: $discussionitems[$alldiscussion{$_}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
508: $discussionitems[$alldiscussion{$_}]=~s/<a([^>]+)>(Edit|Hide|Delete|Reply|Submissions)<\/a>//g;
509: $discussionitems[$alldiscussion{$_}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
510:
511: $discussionitems[$alldiscussion{$_}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$_}];
512: $discussion.=$discussionitems[$alldiscussion{$_}];
513: } elsif ($outputtarget eq 'export') {
514: my $postfilename = $alldiscussion{$_}.'-'.$imsitems{$alldiscussion{$_}}{'timestamp'}.'.html';
515: if ($manifestok) {
516: if (($depth[$alldiscussion{$_}] <= $currdepth) && ($alldiscussion{$_} != $firstidx)) {
517: print $manifestfile ' </item>'."\n";
518: }
519: $currdepth = $depth[$alldiscussion{$_}];
520: print $manifestfile "\n".
521: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$_}.'" isvisible="'.
522: $imsitems{$alldiscussion{$_}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$_}.'">'.
523: '<title>'.$imsitems{$alldiscussion{$_}}{'title'}.'</title>';
524: $imsresources .= "\n".
525: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$_}.'" type="webcontent" href="'.$postfilename.'">'."\n".
526: '<file href="'.$postfilename.'">'."\n".
527: $imsfiles{$alldiscussion{$_}}{$imsitems{$alldiscussion{$_}}{'currversion'}}."\n".
528: '</resource>';
529: }
530: my $postingfile;
531: my $postingfilename = $tempexport.'/'.$postfilename;
532: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
533: print $postingfile '<html><head><title>Discussion Post</title></head><body>'.
534: $imsitems{$alldiscussion{$_}}{'title'}.' '.
535: $imsitems{$alldiscussion{$_}}{'sender'}.
536: $imsitems{$alldiscussion{$_}}{'timestamp'}.'<br /><br />'.
537: $imsitems{$alldiscussion{$_}}{'message'}.'<br />'.
538: $imsitems{$alldiscussion{$_}}{'attach'}.'</body></html>'."\n";
539: close($postingfile);
540: } else {
541: $discussion .= 'An error occurred opening the export file for posting '.$alldiscussion{$_}.'<br />';
542: }
543: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$_}}{'allattachments'},$tempexport);
544: } else {
545: $discussion.='<td bgcolor="'.$bgcols[$newitem{$alldiscussion{$_}}].
546: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$_}].
547: '</td></tr>';
548: }
549: }
550: }
551: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
552: my $colspan=$maxdepth+1;
553: $discussion .= <<END;
554: <tr bgcolor="#FFFFFF">
555: <td colspan="$colspan" valign="top">
556: <table border="0" bgcolor="#FFFFFF" width="100%" cellspacing="2" cellpadding="2">
557: <tr>
558: <td align="left">
559: <table border="0" cellpadding="0" cellspacing="4">
560: <tr>
561: <td>
562: <font size="-1"><b>$lt{'cuse'}</b>:</td>
563: <td> </td>
564: <td><font size="-1">
565: END
566: if ($newpostsflag) {
567: $discussion .=
568: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
569: if ($dischash{$toggkey}) {
570: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
571: }
572: } else {
573: if ($dischash{$toggkey}) {
574: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
575: } else {
576: $discussion .=
577: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
578: }
579: }
580: $discussion .= <<END;
581: </font></td>
582: <td> </td>
583: <td align="left">
584: <font size="-1"><b><a href="$chglink">$lt{'chgt'}</a>?</font></b>
585: </td>
586: </tr>
587: </table>
588: </td>
589: END
590: if ($sortposts) {
591: my %sort_types = ();
592: my %role_types = ();
593: my %status_types = ();
594: &sort_filter_names(\%sort_types,\%role_types,\%status_types);
595:
596: $discussion .= '<td><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
597: if (defined($env{'form.totposters'})) {
598: $discussion .= &mt('Posts by').':';
599: if ($totposters > 0) {
600: foreach my $poster (@posters) {
601: $poster =~ s/:/\@/;
602: $discussion .= ' '.$poster.',';
603: }
604: $discussion =~ s/,$//;
605: } else {
606: $discussion .= &mt('None selected');
607: }
608: } else {
609: my $filterchoice ='';
610: if (@sectionpick > 0) {
611: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
612: $filterchoice .= ' ';
613: }
614: if (@rolefilter > 0) {
615: $filterchoice .= '<i>'.&mt('roles').'</i>-';
616: foreach (@rolefilter) {
617: $filterchoice .= ' '.$role_types{$_}.',';
618: }
619: $filterchoice =~ s/,$//;
620: $filterchoice .= '<br />     ';
621: }
622: if ($statusfilter) {
623: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
624: }
625: if ($filterchoice) {
626: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
627: }
628: $discussion .= '</font></td>';
629: }
630: }
631: if ($dischash{$toggkey}) {
632: my $storebutton = &mt('Store read/unread changes');
633: $discussion.='<td align="right">'.
634: '<input type="hidden" name="discsymb" value="'.$ressymb.'">'."\n".
635: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
636: ' onClick="this.form.submit();">'."\n".
637: '</td>';
638: }
639: $discussion .= (<<END);
640: </tr>
641: </table>
642: </td>
643: </tr>
644: </table>
645: <br /><br /></form>
646: END
647: }
648: if ($outputtarget eq 'export') {
649: if ($manifestok) {
650: while ($currdepth > 0) {
651: print $manifestfile " </item>\n";
652: $currdepth --;
653: }
654: print $manifestfile qq|
655: </organization>
656: </organizations>
657: <resources>
658: $imsresources
659: </resources>
660: </manifest>
661: |;
662: close($manifestfile);
663: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
664: $discussion = $copyresult;
665: } else {
666:
667: #Create zip file in prtspool
668:
669: my $imszipfile = '/prtspool/'.
670: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
671: time.'_'.rand(1000000000).'.zip';
672: my $cwd = &getcwd();
673: my $imszip = '/home/httpd/'.$imszipfile;
674: chdir $tempexport;
675: open(OUTPUT, "zip -r $imszip * 2> /dev/null |");
676: close(OUTPUT);
677: chdir $cwd;
678: $discussion .= 'Download the zip file from <a href="'.$imszipfile.'">Discussion Posting Archive</a><br />';
679: if ($copyresult) {
680: $discussion .= 'The following errors occurred during export - <br />'.$copyresult;
681: }
682: }
683: } else {
684: $discussion .= '<br />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 />';
685: }
686: return $discussion;
687: }
688: }
689: if ($discussiononly) {
690: my $now = time;
691: my $attachnum = 0;
692: my $newattachmsg = '';
693: my @currnewattach = ();
694: my @currdelold = ();
695: my $comment = '';
696: my $subject = '';
697: if ($env{'form.origpage'}) {
698: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
699: $subject = &unescape($env{'form.subject'});
700: $comment = &unescape($env{'form.comment'});
701: my @keepold = ();
702: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
703: if (@currnewattach > 0) {
704: $attachnum += @currnewattach;
705: }
706: }
707: if (&discussion_open($status)) {
708: $discussion.=(<<ENDDISCUSS);
709: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
710: <input type="submit" name="discuss" value="Post Discussion" />
711: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
712: <input type="hidden" name="symb" value="$ressymb" />
713: <input type="hidden" name="sendit" value="true" />
714: <input type="hidden" name="timestamp" value="$now" />
715: <br /><a name="newpost"></a>
716: <font size="1">Note: in anonymous discussion, your name is visible only
717: to course faculty</font><br />
718: <b>Title:</b> <input type="text" name="subject" value="$subject" size="30" /><br /><br />
719: <textarea name="comment" cols="80" rows="14" wrap="hard">$comment</textarea>
720: ENDDISCUSS
721: if ($env{'form.origpage'}) {
722: $discussion.='<input type="hidden" name="origpage" value="'.$env{'form.origpage'}.'" />'."\n";
723: foreach (@currnewattach) {
724: $discussion.='<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n";
725: }
726: }
727: $discussion.="</form>\n";
728: if ($outputtarget ne 'tex') {
729: $discussion.=&generate_attachments_button('',$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,'',$mode);
730: if (@currnewattach > 0) {
731: $newattachmsg .= '<br /><b>New attachments</b><br />';
732: if (@currnewattach > 1) {
733: $newattachmsg .= '<ol>';
734: foreach my $item (@currnewattach) {
735: $item =~ m#.*/([^/]+)$#;
736: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
737: }
738: $newattachmsg .= '</ol>'."\n";
739: } else {
740: $currnewattach[0] =~ m#.*/([^/]+)$#;
741: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
742: }
743: }
744: $discussion.=$newattachmsg;
745: $discussion.=&generate_preview_button();
746: }
747: }
748: } else {
749: $discussion.='<table bgcolor="#BBBBBB"><tr><td>';
750: if (&discussion_open($status) &&
751: &Apache::lonnet::allowed('pch',
752: $env{'request.course.id'}.
753: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
754: if ($outputtarget ne 'tex') {
755: $discussion.='<a href="/adm/feedback?replydisc='.
756: &escape($ressymb).':::" '.$target.'>'.
757: '<img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" border="0" />'.
758: &mt('Post Discussion').'</a><br />';
759: }
760: }
761: $discussion.='<a href="/adm/feedback?sendmessageonly=1&symb='.
762: &escape($ressymb).
763: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/feedback.gif').'" border="0" />'.
764: &mt('Send Message').'</a></td></tr></table>';
765: }
766: return $discussion;
767: }
768:
769: sub build_posting_display {
770: my ($usernamesort,$subjectsort,$namesort,$notshown,$newitem,$dischash,$shown,$alldiscussion,$imsitems,$imsfiles,$roleinfo,$discussionitems,$replies,$depth,$posters,$maxdepth,$visible,$newpostsflag,$current,$status,$viewgrades,$seeid,$prevread,$sortposts,$ressymb,$target,$readkey,$showunmark,$showonlyunread,$totposters,$rolefilter,$sectionpick,$statusfilter,$toggkey,$outputtarget,$anonhash,$anoncnt) = @_;
771: my @original=();
772: my @index=();
773: my $symb=&Apache::lonenc::check_decrypt($ressymb);
774: my $escsymb=&escape($ressymb);
775: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
776: $env{'course.'.$env{'request.course.id'}.'.domain'},
777: $env{'course.'.$env{'request.course.id'}.'.num'});
778:
779: if ($contrib{'version'}) {
780: my $oldest = $contrib{'1:timestamp'};
781: if ($prevread eq '0') {
782: $prevread = $oldest-1;
783: }
784: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
785: if ($sortposts) {
786: ($skiptest,$roleregexp,$secregexp,$statusregexp) = &filter_regexp($rolefilter,$sectionpick,$statusfilter);
787: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
788: }
789: for (my $id=1;$id<=$contrib{'version'};$id++) {
790: my $idx=$id;
791: my $posttime = $contrib{$idx.':timestamp'};
792: if ($prevread <= $posttime) {
793: $$newpostsflag = 1;
794: }
795: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
796: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
797: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
798: my $origindex='0.';
799: my $numoldver=0;
800: if ($contrib{$idx.':replyto'}) {
801: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
802: # this is a follow-up message
803: $original[$idx]=$original[$contrib{$idx.':replyto'}];
804: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
805: $origindex=$index[$contrib{$idx.':replyto'}];
806: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
807: } else {
808: $original[$idx]=0;
809: $$depth[$idx]=0;
810: }
811: } else {
812: # this is an original message
813: $original[$idx]=0;
814: $$depth[$idx]=0;
815: }
816: if ($$replies[$$depth[$idx]]) {
817: $$replies[$$depth[$idx]]++;
818: } else {
819: $$replies[$$depth[$idx]]=1;
820: }
821: unless ((($hidden) && (!$seeid)) || ($deleted)) {
822: $$visible++;
823: if ($contrib{$idx.':history'}) {
824: if ($contrib{$idx.':history'} =~ /:/) {
825: my @oldversions = split/:/,$contrib{$idx.':history'};
826: $numoldver = @oldversions;
827: } else {
828: $numoldver = 1;
829: }
830: }
831: $$current = $numoldver;
832: my %messages = ();
833: my %subjects = ();
834: my %attachtxt = ();
835: my %allattachments = ();
836: my ($screenname,$plainname);
837: my $sender = &mt('Anonymous');
838: # Anonymous users getting number within a discussion
839: # Since idx is in static order, this should give the same sequence every time.
840: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
841: unless ($$anonhash{$key}) {
842: $anoncnt++;
843: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
844: }
845: my ($message,$subject,$vgrlink,$ctlink);
846: &get_post_contents(\%contrib,$idx,$seeid,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,$numoldver);
847:
848:
849: # Set up for sorting by subject
850: unless ($outputtarget eq 'export') {
851: $message=$messages{$numoldver};
852: $message.=$attachtxt{$numoldver};
853: $subject=$subjects{$numoldver};
854: if ($message) {
855: if ($hidden) {
856: $message='<font color="#888888">'.$message.'</font>';
857: if ($studenthidden) {
858: $message .='<br /><br />Deleted by poster (student).';
859: }
860: }
861:
862: if ($subject eq '') {
863: if (defined($$subjectsort{'__No subject'})) {
864: push @{$$subjectsort{'__No subject'}}, $idx;
865: } else {
866: @{$$subjectsort{'__No subject'}} = ("$idx");
867: }
868: } else {
869: if (defined($$subjectsort{$subject})) {
870: push @{$$subjectsort{$subject}}, $idx;
871: } else {
872: @{$$subjectsort{$subject}} = ("$idx");
873: }
874: }
875: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
876: $sender=&Apache::loncommon::aboutmewrapper(
877: $plainname,
878: $contrib{$idx.':sendername'},
879: $contrib{$idx.':senderdomain'}).' ('.
880: $contrib{$idx.':sendername'}.' at '.
881: $contrib{$idx.':senderdomain'}.')';
882: if ($contrib{$idx.':anonymous'}) {
883: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
884: $screenname;
885: }
886:
887: # Set up for sorting by domain, then username
888: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
889: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
890: }
891: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
892: push @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx;
893: } else {
894: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
895: }
896: # Set up for sorting by last name, then first name
897: my %names = &Apache::lonnet::get('environment',
898: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
899: ,$contrib{$idx.':sendername'});
900: my $lastname = $names{'lastname'};
901: my $firstname = $names{'firstname'};
902: if ($lastname eq '') {
903: $lastname = '_';
904: }
905: if ($firstname eq '') {
906: $firstname = '_';
907: }
908: unless (defined($$namesort{$lastname})) {
909: %{$$namesort{$lastname}} = ();
910: }
911: if (defined($$namesort{$lastname}{$firstname})) {
912: push @{$$namesort{$lastname}{$firstname}}, $idx;
913: } else {
914: @{$$namesort{$lastname}{$firstname}} = ("$idx");
915: }
916: if (&editing_allowed()) {
917: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
918: $sender.=' <a href="/adm/feedback?editdisc='.
919: $escsymb.':::'.$idx;
920: if ($$newpostsflag) {
921: $sender .= '&previous='.$prevread;
922: }
923: $sender .= '" '.$target.'>'.&mt('Edit').'</a>';
924: unless ($seeid) {
925: $sender.=" <a href=\"javascript:studentdelete('$escsymb','$idx','$$newpostsflag','$prevread')";
926: $sender .= '">'.&mt('Delete').'</a>';
927: }
928: }
929: }
930: if ($seeid) {
931: if ($hidden) {
932: unless ($studenthidden) {
933: $sender.=' <a href="/adm/feedback?unhide='.
934: $escsymb.':::'.$idx;
935: if ($$newpostsflag) {
936: $sender .= '&previous='.$prevread;
937: }
938: $sender .= '">'.&mt('Make Visible').'</a>';
939: }
940: } else {
941: $sender.=' <a href="/adm/feedback?hide='.
942: $escsymb.':::'.$idx;
943: if ($$newpostsflag) {
944: $sender .= '&previous='.$prevread;
945: }
946: $sender .= '">'.&mt('Hide').'</a>';
947: }
948: $sender.=' <a href="/adm/feedback?deldisc='.
949: $escsymb.':::'.$idx;
950: if ($$newpostsflag) {
951: $sender .= '&previous='.$prevread;
952: }
953: $sender .= '">'.&mt('Delete').'</a>';
954: }
955: } else {
956: if ($screenname) {
957: $sender='<i>'.$screenname.'</i>';
958: } else {
959: $sender='<i>'.$$anonhash{$key}.'</i>';
960: }
961: # Set up for sorting by domain, then username for anonymous
962: unless (defined($$usernamesort{'__anon'})) {
963: %{$$usernamesort{'__anon'}} = ();
964: }
965: if (defined($$usernamesort{'__anon'}{'__anon'})) {
966: push @{$$usernamesort{'__anon'}{'__anon'}}, $idx;
967: } else {
968: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
969: }
970: # Set up for sorting by last name, then first name for anonymous
971: unless (defined($$namesort{'__anon'})) {
972: %{$$namesort{'__anon'}} = ();
973: }
974: if (defined($$namesort{'__anon'}{'__anon'})) {
975: push @{$$namesort{'__anon'}{'__anon'}}, $idx;
976: } else {
977: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
978: }
979: }
980: if (&discussion_open($status) &&
981: &Apache::lonnet::allowed('pch',
982: $env{'request.course.id'}.
983: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
984: $sender.=' <a href="/adm/feedback?replydisc='.
985: $escsymb.':::'.$idx;
986: if ($$newpostsflag) {
987: $sender .= '&previous='.$prevread;
988: }
989: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
990: }
991: if ($viewgrades) {
992: $vgrlink=&Apache::loncommon::submlink('Submissions',
993: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
994: }
995: if ($$dischash{$readkey}=~/\.$idx\./) {
996: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
997: } else {
998: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
999: }
1000: }
1001: #figure out at what position this needs to print
1002: }
1003: if ($outputtarget eq 'export' || $message) {
1004: my $thisindex=$idx;
1005: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1006: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1007: }
1008: $$alldiscussion{$thisindex}=$idx;
1009: $$shown{$idx} = 0;
1010: $index[$idx]=$thisindex;
1011: }
1012: if ($outputtarget eq 'export') {
1013: %{$$imsitems{$idx}} = ();
1014: $$imsitems{$idx}{'isvisible'}='true';
1015: if ($hidden) {
1016: $$imsitems{$idx}{'isvisible'}='false';
1017: }
1018: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1019: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1020: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1021: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1022: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1023: $contrib{$idx.':sendername'}.' at '.
1024: $contrib{$idx.':senderdomain'}.')';
1025: $$imsitems{$idx}{'isanonymous'}='false';
1026: if ($contrib{$idx.':anonymous'}) {
1027: $$imsitems{$idx}{'isanonymous'}='true';
1028: }
1029: $$imsitems{$idx}{'currversion'}=$numoldver;
1030: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1031: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1032: $$shown{$idx} = 1;
1033: }
1034: } else {
1035: if ($message) {
1036: my $spansize = 2;
1037: if ($showonlyunread && $prevread > $posttime) {
1038: $$notshown{$idx} = 1;
1039: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1040: $$notshown{$idx} = 1;
1041: } else {
1042: # apply filters
1043: my $uname = $contrib{$idx.':sendername'};
1044: my $udom = $contrib{$idx.':senderdomain'};
1045: my $poster = $uname.':'.$udom;
1046: if (defined($env{'form.totposters'})) {
1047: if ($totposters == 0) {
1048: $$shown{$idx} = 0;
1049: } elsif ($totposters > 0) {
1050: if (grep/^$poster$/,@{$posters}) {
1051: $$shown{$idx} = 1;
1052: }
1053: }
1054: } elsif ($sortposts) {
1055: if ($skiptest) {
1056: $$shown{$idx} = 1;
1057: } else {
1058: foreach my $role (@{$$roleinfo{$poster}}) {
1059: if ($role =~ /^cc:/) {
1060: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1061: if ($role =~ /$cc_regexp/) {
1062: $$shown{$idx} = 1;
1063: last;
1064: }
1065: } elsif ($role =~ /^$rolematch$/) {
1066: $$shown{$idx} = 1;
1067: last;
1068: }
1069: }
1070: }
1071: } else {
1072: $$shown{$idx} = 1;
1073: }
1074: }
1075: unless ($$notshown{$idx} == 1) {
1076: if ($prevread > 0 && $prevread <= $posttime) {
1077: $$newitem{$idx} = 1;
1078: $$discussionitems[$idx] .= '
1079: <p><table border="0" width="100%">
1080: <tr><td align="left"><font color="#FF0000"><b>NEW</b></font></td>';
1081: } else {
1082: $$newitem{$idx} = 0;
1083: $$discussionitems[$idx] .= '
1084: <p><table border="0" width="100%">
1085: <tr><td align="left"> </td>';
1086: }
1087: $$discussionitems[$idx] .= '<td align ="left"> '.
1088: '<b>'.$subject.'</b> '.
1089: $sender.'</b> '.$vgrlink.' ('.
1090: &Apache::lonlocal::locallocaltime($posttime).')</td>';
1091: if ($$dischash{$toggkey}) {
1092: $$discussionitems[$idx].='<td align="right"> '.
1093: $ctlink.'</td>';
1094: }
1095: $$discussionitems[$idx].= '</tr></table><blockquote>'.
1096: $message.'</blockquote></p>';
1097: if ($contrib{$idx.':history'}) {
1098: my @postversions = ();
1099: $$discussionitems[$idx] .= &mt('This post has been edited by the author.');
1100: if ($seeid) {
1101: $$discussionitems[$idx] .= ' <a href="/adm/feedback?allversions='.$escsymb.':::'.$idx.'">'.&mt('Display all versions').'</a>';
1102: }
1103: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1104: if ($contrib{$idx.':history'} =~ m/:/) {
1105: @postversions = split/:/,$contrib{$idx.':history'};
1106: } else {
1107: @postversions = ("$contrib{$idx.':history'}");
1108: }
1109: for (my $i=0; $i<@postversions; $i++) {
1110: my $version = $i+1;
1111: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1112: }
1113: }
1114: }
1115: }
1116: }
1117: }
1118: }
1119: }
1120: }
1121:
1122: sub filter_regexp {
1123: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1124: my ($roleregexp,$secregexp,$statusregexp);
1125: my $skiptest = 1;
1126: if (@{$rolefilter} > 0) {
1127: my @okrolefilter = ();
1128: foreach (@{$rolefilter}) {
1129: unless ($_ eq '') {
1130: push @okrolefilter, $_;
1131: }
1132: }
1133: if (@okrolefilter > 0) {
1134: if (grep/^all$/,@okrolefilter) {
1135: $roleregexp='[^:]+';
1136: } else {
1137: if (@okrolefilter == 1) {
1138: $roleregexp=$okrolefilter[0];
1139: } else {
1140: $roleregexp='('.join('|',@okrolefilter).')';
1141: }
1142: $skiptest = 0;
1143: }
1144: }
1145: }
1146: if (@{$sectionpick} > 0) {
1147: my @oksectionpick = ();
1148: foreach (@{$sectionpick}) {
1149: unless ($_ eq '') {
1150: push @oksectionpick, $_;
1151: }
1152: }
1153: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1154: if (@oksectionpick == 1) {
1155: $secregexp = $oksectionpick[0];
1156: } else {
1157: $secregexp .= '('.join('|',@oksectionpick).')';
1158: }
1159: $skiptest = 0;
1160: } else {
1161: $secregexp .= '[^:]*';
1162: }
1163: }
1164: if (defined($statusfilter) && $statusfilter ne '') {
1165: if ($statusfilter eq 'all') {
1166: $statusregexp = '[^:]+';
1167: } else {
1168: $statusregexp = $statusfilter;
1169: $skiptest = 0;
1170: }
1171: }
1172: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1173: }
1174:
1175:
1176: sub get_post_contents {
1177: my ($contrib,$idx,$seeid,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$numver) = @_;
1178: my $discussion = '';
1179: my $start=$numver;
1180: my $end=$numver + 1;
1181: %{$$imsfiles{$idx}}=();
1182: if ($type eq 'allversions') {
1183: unless($seeid) {
1184: $discussion=&mt('You do not have privileges to view all versions of posts.').&mt('Please select a different role');
1185: return $discussion;
1186: }
1187: }
1188: # $$screenname=&Apache::loncommon::screenname(
1189: # $$contrib{$idx.':sendername'},
1190: # $$contrib{$idx.':senderdomain'});
1191: $$plainname=&Apache::loncommon::nickname(
1192: $$contrib{$idx.':sendername'},
1193: $$contrib{$idx.':senderdomain'});
1194: $$screenname=$$contrib{$idx.':screenname'};
1195:
1196: my $sender=&Apache::loncommon::aboutmewrapper(
1197: $$plainname,
1198: $$contrib{$idx.':sendername'},
1199: $$contrib{$idx.':senderdomain'}).' ('.
1200: $$contrib{$idx.':sendername'}.' at '.
1201: $$contrib{$idx.':senderdomain'}.')';
1202: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1203: my @postversions = ();
1204: if ($type eq 'allversions' || $type eq 'export') {
1205: $start = 0;
1206: if ($$contrib{$idx.':history'}) {
1207: @postversions = split(/:/,$$contrib{$idx.':history'});
1208: }
1209: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1210: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1211: push @postversions,$$contrib{$idx.':timestamp'};
1212: $end = @postversions;
1213: } else {
1214: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1215: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1216: }
1217:
1218: if ($$contrib{$idx.':anonymous'}) {
1219: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1220: }
1221: if ($type eq 'allversions') {
1222: $discussion=('<b>'.$sender.'</b><br /><ul>');
1223: }
1224: for (my $i=$start; $i<$end; $i++) {
1225: my ($timesent,$attachmsg);
1226: my %currattach = ();
1227: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1228: &newline_to_br(\$messages->{$i});
1229: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1230: $$subjects{$i}=~s/\n/\<br \/\>/g;
1231: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1232: if ($attachmenturls) {
1233: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1234: }
1235: if ($type eq 'export') {
1236: $$imsfiles{$idx}{$i} = '';
1237: if ($attachmsg) {
1238: $$attachtxt{$i} = '<br />Attachments:<br />';
1239: foreach (sort keys %currattach) {
1240: if ($$allattachments{$_}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1241: my $fname = $1.$3.'/'.$4;
1242: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'">'."\n";
1243: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1244: }
1245: }
1246: }
1247: } else {
1248: if ($attachmsg) {
1249: $$attachtxt{$i} = '<br />Attachments:'.$attachmsg.'<br />';
1250: } else {
1251: $$attachtxt{$i} = '';
1252: }
1253: }
1254: if ($type eq 'allversions') {
1255: $discussion.= <<"END";
1256: <li><b>$$subjects{$i}</b>, $timesent<br />
1257: $$messages{$i}<br />
1258: $$attachtxt{$i}</li>
1259: END
1260: }
1261: }
1262: if ($type eq 'allversions') {
1263: $discussion.='</ul>';
1264: return $discussion;
1265: } else {
1266: return;
1267: }
1268: }
1269:
1270: sub replicate_attachments {
1271: my ($attachrefs,$tempexport) = @_;
1272: my $response;
1273: foreach my $id (keys %{$attachrefs}) {
1274: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1275: my $path = $tempexport;
1276: my $tail = $1.'/'.$2.$4;
1277: my @extras = split/\//,$tail;
1278: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1279: if (!-e $destination) {
1280: my $i= 0;
1281: while ($i<@extras) {
1282: $path .= '/'.$extras[$i];
1283: if (!-e $path) {
1284: mkdir($path,0700);
1285: }
1286: $i ++;
1287: }
1288: my ($content,$rtncode);
1289: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1290: if ($uploadreply eq 'ok') {
1291: my $attachcopy;
1292: if ($attachcopy = Apache::File->new('>'.$destination)) {
1293: print $attachcopy $content;
1294: close($attachcopy);
1295: } else {
1296: $response .= 'Error copying file attachment - '.$5.' to IMS package: '.$!.'<br />'."\n";
1297: }
1298: } else {
1299: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1300: $response .= 'Error copying file attachment - '.$5.' to IMS package: '.$rtncode.'<br />'."\n";
1301: }
1302: }
1303: }
1304: }
1305: return $response;
1306: }
1307:
1308: sub mail_screen {
1309: my ($r,$feedurl,$options) = @_;
1310: if (exists($env{'form.origpage'})) {
1311: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog']);
1312: }
1313:
1314: my $title=&Apache::lonnet::gettitle($feedurl);
1315: if (!$title) { $title = $feedurl; }
1316: my $quote='';
1317: my $subject = '';
1318: my $comment = '';
1319: my $prevtag = '';
1320: my $parentmsg = '';
1321: my ($symb,$idx,$attachmenturls);
1322: my $numoldver = 0;
1323: my $attachmsg = '';
1324: my $newattachmsg = '';
1325: my @currnewattach = ();
1326: my @currdelold = ();
1327: my @keepold = ();
1328: my %attachments = ();
1329: my %currattach = ();
1330: my $attachnum = 0;
1331: my $anonchk = (<<END);
1332: function anonchk() {
1333: for (var i=0; i < document.mailform.discuss.length; i++) {
1334: if (document.mailform.discuss[i].checked) {
1335: document.attachment.discuss.value =
1336: document.mailform.discuss[i].value;
1337: }
1338: }
1339: if (document.mailform.blog.checked) {
1340: document.attachment.blog.value = 1;
1341: }
1342: return
1343: }
1344: END
1345: my $anonscript;
1346: if (exists($env{'form.origpage'})) {
1347: $anonscript = (<<END);
1348: function setposttype() {
1349: var disc = "$env{'form.discuss'}";
1350: for (var i=0; i < document.mailform.discuss.length; i++) {
1351: if (disc == document.mailform.discuss[i].value) {
1352: document.mailform.discuss[i].checked = 1;
1353: }
1354: }
1355: var blog = "$env{'form.blog'}";
1356: if (blog == 1) {
1357: document.mailform.blog.checked=1;
1358: }
1359: return
1360: }
1361: END
1362: } else {
1363: $anonscript = (<<END);
1364: function setposttype() {
1365: return
1366: }
1367: END
1368: }
1369: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1370: if ($env{'form.replydisc'}) {
1371: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1372: } else {
1373: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1374: }
1375: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1376: $env{'course.'.$env{'request.course.id'}.'.domain'},
1377: $env{'course.'.$env{'request.course.id'}.'.num'});
1378: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1379: if ($contrib{$idx.':history'}) {
1380: if ($contrib{$idx.':history'} =~ /:/) {
1381: my @oldversions = split/:/,$contrib{$idx.':history'};
1382: $numoldver = @oldversions;
1383: } else {
1384: $numoldver = 1;
1385: }
1386: }
1387: if ($env{'form.replydisc'}) {
1388: if ($contrib{$idx.':history'}) {
1389: if ($contrib{$idx.':history'} =~ /:/) {
1390: my @oldversions = split/:/,$contrib{$idx.':history'};
1391: $numoldver = @oldversions;
1392: } else {
1393: $numoldver = 1;
1394: }
1395: }
1396: my $message;
1397: if ($idx > 0) {
1398: my %msgversions = ();
1399: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1400: $message = $msgversions{$numoldver};
1401: }
1402: &newline_to_br(\$message);
1403: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
1404: if ($idx > 0) {
1405: my %subversions = ();
1406: &get_post_versions(\%subversions,$contrib{$idx.':subject'},1,$numoldver);
1407: $subject = 'Re: '.$subversions{$numoldver};
1408: }
1409: $subject = &HTML::Entities::encode($subject,'<>&"');
1410: } else {
1411: $attachmenturls = $contrib{$idx.':attachmenturl'};
1412: if ($idx > 0) {
1413: my %msgversions = ();
1414: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1415: $comment = $msgversions{$numoldver};
1416: my %subversions = ();
1417: &get_post_versions(\%subversions,$contrib{$idx.':subject'},0,$numoldver);
1418: $subject = $subversions{$numoldver};
1419: }
1420: if (defined($contrib{$idx.':replyto'})) {
1421: $parentmsg = $contrib{$idx.':replyto'};
1422: }
1423: unless (exists($env{'form.origpage'})) {
1424: my $anonflag = 'nonanon';
1425: if ($contrib{$idx.':anonymous'}) {
1426: $anonflag = 'anon';
1427: }
1428: $anonscript = (<<END);
1429: function setposttype () {
1430: var currtype = "$anonflag";
1431: for (var i=0; i<document.mailform.discuss.length; i++) {
1432: if (document.mailform.elements.discuss[i].value == currtype ) {
1433: document.mailform.elements.discuss[i].checked=1;
1434: }
1435: }
1436: return
1437: }
1438: END
1439: }
1440: }
1441: }
1442: if ($env{'form.previous'}) {
1443: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1444: }
1445: }
1446:
1447: if ($env{'form.origpage'}) {
1448: $subject = &unescape($env{'form.subject'});
1449: $comment = &unescape($env{'form.comment'});
1450: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1451: }
1452: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet();
1453: my $send=&mt('Send');
1454: my $js= <<END;
1455: <script type="text/javascript">
1456: //<!--
1457: function gosubmit() {
1458: var rec=0;
1459: if (typeof(document.mailform.elements.discuss)!="undefined") {
1460: if (typeof(document.mailform.elements.discuss.length) == "undefined") {
1461: if (document.mailform.elements.discuss.checked ) {
1462: rec=1;
1463: }
1464: } else {
1465: for (var i=0; i<document.mailform.elements.discuss.length; i++) {
1466: if (document.mailform.elements.discuss[i].checked ) {
1467: rec=1;
1468: }
1469: }
1470: }
1471: }
1472: if (typeof(document.mailform.elements.blog)!="undefined") {
1473: if (document.mailform.elements.blog.checked) {
1474: rec=1;
1475: }
1476: }
1477:
1478: if (rec) {
1479: if (typeof(document.mailform.onsubmit)=='function') {
1480: document.mailform.onsubmit();
1481: }
1482: document.mailform.submit();
1483: } else {
1484: alert('Please select a feedback type.');
1485: }
1486: }
1487: $anonchk
1488: $anonscript
1489: //-->
1490: </script>
1491: END
1492:
1493: my %onload = ('onload' => 'window.focus();setposttype();');
1494: my $start_page=
1495: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,
1496: {'add_entries' => \%onload});
1497:
1498: $r->print(<<END);
1499: $start_page
1500: <h2><tt>$title</tt></h2>
1501: <form action="/adm/feedback" method="post" name="mailform"
1502: enctype="multipart/form-data">
1503: $prevtag
1504: <input type="hidden" name="postdata" value="$feedurl" />
1505: END
1506: if ($env{'form.replydisc'}) {
1507: $r->print(<<END);
1508: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
1509: END
1510: } elsif ($env{'form.editdisc'}) {
1511: $r->print(<<END);
1512: <input type="hidden" name="editdisc" value ="$env{'form.editdisc'}" />
1513: <input type="hidden" name="parentmsg" value ="$parentmsg" />
1514: END
1515: }
1516: $r->print(<<END);
1517: Please check at least one of the following feedback types:
1518: $options<hr />
1519: $quote
1520: <p>My question/comment/feedback:</p>
1521: <p>
1522: $latexHelp
1523: Title: <input type="text" name="subject" size="30" value="$subject" /></p>
1524: <p>
1525: <textarea name="comment" id="comment" cols="60" rows="10" wrap="hard">$comment
1526: </textarea></p>
1527: <p>
1528: END
1529: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
1530: if ($env{'form.origpage'}) {
1531: foreach (@currnewattach) {
1532: $r->print('<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n");
1533: }
1534: foreach (@currdelold) {
1535: $r->print('<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n");
1536: }
1537: }
1538: if ($env{'form.editdisc'}) {
1539: if ($attachmenturls) {
1540: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
1541: $attachnum = scalar(keys %currattach);
1542: foreach (keys %currattach) {
1543: $r->print('<input type="hidden" name="keepold" value="'.$_.'" />'."\n");
1544: }
1545: }
1546: }
1547: } else {
1548: $r->print(<<END);
1549: Attachment (128 KB max size): <input type="file" name="attachment" />
1550: </p>
1551: END
1552: }
1553: $r->print(<<END);
1554: <p>
1555: <input type="hidden" name="sendit" value="1" />
1556: <input type="button" value="$send" onClick='gosubmit();' />
1557: </p>
1558: </form>
1559: END
1560: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
1561: my $now = time;
1562: my $ressymb = $symb;
1563: my $postidx = '';
1564: if ($env{'form.editdisc'}) {
1565: $postidx = $idx;
1566: }
1567: if (@currnewattach > 0) {
1568: $attachnum += @currnewattach;
1569: }
1570: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver));
1571: if ($attachnum > 0) {
1572: if (@currnewattach > 0) {
1573: $newattachmsg .= '<br /><b>New attachments</b><br />';
1574: if (@currnewattach > 1) {
1575: $newattachmsg .= '<ol>';
1576: foreach my $item (@currnewattach) {
1577: $item =~ m#.*/([^/]+)$#;
1578: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
1579: }
1580: $newattachmsg .= '</ol>'."\n";
1581: } else {
1582: $currnewattach[0] =~ m#.*/([^/]+)$#;
1583: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
1584: }
1585: }
1586: if ($attachmsg) {
1587: $r->print("<b>Retained attachments</b>:$attachmsg<br />\n");
1588: }
1589: if ($newattachmsg) {
1590: $r->print("$newattachmsg<br />");
1591: }
1592: }
1593: }
1594: $r->print(&generate_preview_button().
1595: &Apache::lonhtmlcommon::htmlareaselectactive('comment').
1596: &Apache::loncommon::end_page());
1597:
1598: }
1599:
1600: sub print_display_options {
1601: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
1602: &Apache::loncommon::content_type($r,'text/html');
1603: $r->send_http_header;
1604:
1605: my $function = &Apache::loncommon::get_users_function();
1606: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
1607: $env{'user.domain'});
1608:
1609: my %lt = &Apache::lonlocal::texthash(
1610: 'pref' => 'Display Preference',
1611: 'curr' => 'Current setting ',
1612: 'actn' => 'Action',
1613: 'deff' => 'Default for all discussions',
1614: 'prca' => 'Preferences can be set for this discussion that determine ....',
1615: 'whpo' => 'Which posts are displayed when you display this bulletin board or resource, and',
1616: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
1617: 'wipa' => 'Whether individual posts can be marked as read/unread',
1618: 'allposts' => 'All posts',
1619: 'unread' => 'New posts only',
1620: 'unmark' => 'Posts not marked read',
1621: 'ondisp' => 'Once displayed',
1622: 'onmark' => 'Once marked not NEW ',
1623: 'toggon' => 'Shown',
1624: 'toggoff' => 'Not shown',
1625: 'disa' => 'Posts displayed?',
1626: 'npmr' => 'New posts cease to be identified as "NEW"?',
1627: 'dotm' => 'Option to mark each post as read/unread?',
1628: 'chgt' => 'Change to ',
1629: 'mkdf' => 'Set to ',
1630: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
1631: 'ywbr' => 'You will be returned to the previous page if you click OK.'
1632: );
1633:
1634: my $dispchangeA = $lt{'unread'};
1635: my $dispchangeB = $lt{'unmark'};
1636: my $markchange = $lt{'ondisp'};
1637: my $toggchange = $lt{'toggon'};
1638: my $currdisp = $lt{'allposts'};
1639: my $currmark = $lt{'onmark'};
1640: my $discdisp = 'allposts';
1641: my $discmark = 'onmark';
1642: my $currtogg = $lt{'toggoff'};
1643: my $disctogg = 'toggoff';
1644:
1645: if ($dispchgA eq 'allposts') {
1646: $dispchangeA = $lt{'allposts'};
1647: $currdisp = $lt{'unread'};
1648: $discdisp = 'unread';
1649: }
1650:
1651: if ($markchg eq 'markonread') {
1652: $markchange = $lt{'onmark'};
1653: $currmark = $lt{'ondisp'};
1654: $discmark = 'ondisp';
1655: }
1656:
1657: if ($dispchgB eq 'onlyunread') {
1658: $dispchangeB = $lt{'unread'};
1659: $currdisp = $lt{'unmark'};
1660: $discdisp = 'unmark';
1661: }
1662: if ($toggchg eq 'toggoff') {
1663: $toggchange = $lt{'toggoff'};
1664: $currtogg = $lt{'toggon'};
1665: $disctogg = 'toggon';
1666: }
1667:
1668: my $js = <<END;
1669: <script type="text/javascript">
1670: function discdispChk(caller) {
1671: var disctogg = '$toggchg'
1672: if (caller == 0) {
1673: if (document.modifydisp.discdisp[0].checked == true) {
1674: if (document.modifydisp.discdisp[1].checked == true) {
1675: document.modifydisp.discdisp[1].checked = false
1676: }
1677: }
1678: }
1679: if (caller == 1) {
1680: if (document.modifydisp.discdisp[1].checked == true) {
1681: if (document.modifydisp.discdisp[0].checked == true) {
1682: document.modifydisp.discdisp[0].checked = false
1683: }
1684: if (disctogg == 'toggon') {
1685: document.modifydisp.disctogg.checked = true
1686: }
1687: if (disctogg == 'toggoff') {
1688: document.modifydisp.disctogg.checked = false
1689: }
1690: }
1691: }
1692: if (caller == 2) {
1693: var dispchgB = '$dispchgB'
1694: if (disctogg == 'toggoff') {
1695: if (document.modifydisp.disctogg.checked == true) {
1696: if (dispchgB == 'onlyunmark') {
1697: document.modifydisp.discdisp[1].checked = false
1698: }
1699: }
1700: }
1701: }
1702: }
1703:
1704: function setDisp() {
1705: var prev = "$previous"
1706: var chktotal = 0
1707: if (document.modifydisp.discdisp[0].checked == true) {
1708: document.modifydisp.$dispchgA.value = "$symb"
1709: chktotal ++
1710: }
1711: if (document.modifydisp.discdisp[1].checked == true) {
1712: document.modifydisp.$dispchgB.value = "$symb"
1713: chktotal ++
1714: }
1715: if (document.modifydisp.discmark.checked == true) {
1716: document.modifydisp.$markchg.value = "$symb"
1717: chktotal ++
1718: }
1719: if (document.modifydisp.disctogg.checked == true) {
1720: document.modifydisp.$toggchg.value = "$symb"
1721: chktotal ++
1722: }
1723: if (chktotal > 0) {
1724: document.modifydisp.submit()
1725: } else {
1726: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
1727: if (prev > 0) {
1728: location.href = "$feedurl?previous=$previous"
1729: } else {
1730: location.href = "$feedurl"
1731: }
1732: }
1733: }
1734: }
1735: </script>
1736: END
1737:
1738:
1739: my $start_page =
1740: &Apache::loncommon::start_page('Discussion display options',$js);
1741: my $end_page =
1742: &Apache::loncommon::end_page();
1743: $r->print(<<END);
1744: $start_page
1745: <form name="modifydisp" method="POST" action="/adm/feedback">
1746: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
1747: <br />
1748: END
1749: $r->print(&Apache::loncommon::start_data_table());
1750: $r->print(<<END);
1751: <tr>
1752: <th>$lt{'pref'}</td>
1753: <th>$lt{'curr'}</td>
1754: <th>$lt{'actn'}?</td>
1755: </tr>
1756: END
1757: $r->print(&Apache::loncommon::start_data_table_row());
1758: $r->print(<<END);
1759: <td>$lt{'disa'}</td>
1760: <td>$lt{$discdisp}</td>
1761: <td><label><input type="checkbox" name="discdisp" onClick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
1762: <br />
1763: <label><input type="checkbox" name="discdisp" onClick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
1764: </td>
1765: END
1766: $r->print(&Apache::loncommon::end_data_table_row());
1767: $r->print(&Apache::loncommon::start_data_table_row());
1768: $r->print(<<END);
1769: <td>$lt{'npmr'}</td>
1770: <td>$lt{$discmark}</td>
1771: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
1772: END
1773: $r->print(&Apache::loncommon::end_data_table_row());
1774: $r->print(&Apache::loncommon::start_data_table_row());
1775: $r->print(<<END);
1776: <td>$lt{'dotm'}</td>
1777: <td>$lt{$disctogg}</td>
1778: <td><label><input type="checkbox" name="disctogg" onClick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
1779: END
1780: $r->print(&Apache::loncommon::end_data_table_row());
1781: $r->print(&Apache::loncommon::end_data_table());
1782: $r->print(<<END);
1783: <br />
1784: <br />
1785: <input type="hidden" name="symb" value="$symb" />
1786: <input type="hidden" name="previous" value="$previous" />
1787: <input type="hidden" name="$dispchgA" value=""/>
1788: <input type="hidden" name="$dispchgB" value=""/>
1789: <input type="hidden" name="$markchg" value=""/>
1790: <input type="hidden" name="$toggchg" value="" />
1791: <input type="button" name="sub" value="Store Changes" onClick="javascript:setDisp()" />
1792: <br />
1793: <br />
1794: </form>
1795: $end_page
1796: END
1797: return;
1798: }
1799:
1800: sub print_sortfilter_options {
1801: my ($r,$symb,$previous,$feedurl) = @_;
1802:
1803: &Apache::loncommon::content_type($r,'text/html');
1804: $r->send_http_header;
1805:
1806: &Apache::lonenc::check_encrypt(\$symb);
1807: my @sections;
1808: my $section_sel = '';
1809: my $numvisible = 5;
1810: my %sectioncount = &Apache::loncommon::get_sections();
1811:
1812: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
1813: @sections = ('all',$env{'request.course.sec'});
1814: $numvisible = 2;
1815: } else {
1816: @sections = sort {$a cmp $b} keys(%sectioncount);
1817: if (scalar(@sections) < 4) {
1818: $numvisible = scalar(@sections) + 1;
1819: }
1820: unshift(@sections,'all'); # Put 'all' at the front of the list
1821:
1822: }
1823: foreach (@sections) {
1824: $section_sel .= " <option value=\"$_\" />$_\n";
1825: }
1826:
1827: my $function = &Apache::loncommon::get_users_function();
1828: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
1829: $env{'user.domain'});
1830: my %lt = &Apache::lonlocal::texthash(
1831: 'diop' => 'Display Options',
1832: 'curr' => 'Current setting ',
1833: 'actn' => 'Action',
1834: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
1835: 'soor' => 'Sort order',
1836: 'spur' => 'Specific user roles',
1837: 'sprs' => 'Specific role status',
1838: 'spse' => 'Specific sections',
1839: 'psub' => 'Pick specific users (by name)',
1840: 'shal' => 'Show a list of current posters'
1841: );
1842:
1843: my %sort_types = ();
1844: my %role_types = ();
1845: my %status_types = ();
1846: &sort_filter_names(\%sort_types,\%role_types,\%status_types);
1847:
1848: my $js = <<END;
1849: <script type="text/javascript">
1850: function verifyFilter() {
1851: var rolenum = 0
1852: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
1853: if (document.modifyshown.rolefilter.options[i].selected == true) {
1854: rolenum ++
1855: }
1856: }
1857: if (rolenum == 0) {
1858: document.modifyshown.rolefilter.options[0].selected = true
1859: }
1860:
1861: var secnum = 0
1862: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
1863: if (document.modifyshown.sectionpick.options[i].selected == true) {
1864: secnum ++
1865: }
1866: }
1867: if (secnum == 0) {
1868: document.modifyshown.sectionpick.options[0].selected = true
1869: }
1870: document.modifyshown.submit();
1871: }
1872: </script>
1873: END
1874:
1875: my $start_page=
1876: &Apache::loncommon::start_page('Discussion options',$js);
1877: my $end_page=
1878: &Apache::loncommon::end_page();
1879:
1880: $r->print(<<END);
1881: $start_page
1882: <form name="modifyshown" method="POST" action="/adm/feedback">
1883: <b>$lt{'diso'}</b><br/> $lt{'prca'}
1884: <br /><br />
1885: <table border="0">
1886: <tr>
1887: <td><b>$lt{'soor'}</b></td>
1888: <td> </td>
1889: <td><b>$lt{'sprs'}</b></td>
1890: <td> </td>
1891: <td><b>$lt{'spur'}</b></td>
1892: <td> </td>
1893: <td><b>$lt{'spse'}</b></td>
1894: <td> </td>
1895: <td><b>$lt{'psub'}</b></td>
1896: </tr>
1897: <tr>
1898: <td align="center">
1899: <select name="sortposts">
1900: <option value="ascdate" selected="selected" />$sort_types{'ascdate'}
1901: <option value="descdate" />$sort_types{'descdate'}
1902: <option value="thread" />$sort_types{'thread'}
1903: <option value="subject" />$sort_types{'subject'}
1904: <option value="username" />$sort_types{'username'}
1905: <option value="lastfirst" />$sort_types{'lastfirst'}
1906: </select>
1907: </td>
1908: <td> </td>
1909: <td align="center">
1910: <select name="statusfilter">
1911: <option value="all" selected="selected" />$status_types{'all'}
1912: <option value="Active" />$status_types{'Active'}
1913: <option value="Expired" />$status_types{'Expired'}
1914: </select>
1915: </td>
1916: <td> </td>
1917: <td align="center">
1918: <select name="rolefilter" multiple="true" size="5">
1919: <option value="all" />$role_types{'all'}
1920: <option value="st" />$role_types{'st'}
1921: <option value="cc" />$role_types{'cc'}
1922: <option value="in" />$role_types{'in'}
1923: <option value="ta" />$role_types{'ta'}
1924: <option value="ep" />$role_types{'ep'}
1925: <option value="ad" />$role_types{'ad'}
1926: <option value="cr" />$role_types{'cr'}
1927: </select>
1928: </td>
1929: <td> </td>
1930: <td align="center">
1931: <select name="sectionpick" multiple="true" size="$numvisible">
1932: $section_sel
1933: </select>
1934: </td>
1935: <td> </td>
1936: <td><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
1937: </tr>
1938: </table>
1939: <br />
1940: <br />
1941: <input type="hidden" name="previous" value="$previous" />
1942: <input type="hidden" name="applysort" value="$symb" />
1943: <input type="button" name="sub" value="Store Changes" onClick="verifyFilter()" />
1944: <br />
1945: <br />
1946: </form>
1947: $end_page
1948: END
1949: }
1950:
1951: sub print_showposters {
1952: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
1953:
1954: &Apache::loncommon::content_type($r,'text/html');
1955: $r->send_http_header;
1956:
1957: &Apache::lonenc::check_encrypt(\$symb);
1958: my $crs='/'.$env{'request.course.id'};
1959: if ($env{'request.course.sec'}) {
1960: $crs.='_'.$env{'request.course.sec'};
1961: }
1962: $crs=~s/\_/\//g;
1963: my $seeid=&Apache::lonnet::allowed('rin',$crs);
1964: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1965: $env{'course.'.$env{'request.course.id'}.'.domain'},
1966: $env{'course.'.$env{'request.course.id'}.'.num'});
1967: my %namesort = ();
1968: my %postcounts = ();
1969:
1970: if ($contrib{'version'}) {
1971: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
1972: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
1973: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
1974: unless ((($hidden) && (!$seeid)) || ($deleted)) {
1975: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
1976: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1977: my $lastname = $names{'lastname'};
1978: my $firstname = $names{'firstname'};
1979: if ($lastname eq '') {
1980: $lastname = '_';
1981: }
1982: if ($firstname eq '') {
1983: $firstname = '_';
1984: }
1985: unless (defined($namesort{$lastname})) {
1986: %{$namesort{$lastname}} = ();
1987: }
1988: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
1989: $postcounts{$poster} ++;
1990: if (defined($namesort{$lastname}{$firstname})) {
1991: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
1992: push @{$namesort{$lastname}{$firstname}}, $poster;
1993: }
1994: } else {
1995: @{$namesort{$lastname}{$firstname}} = ("$poster");
1996: }
1997: }
1998: }
1999: }
2000: }
2001:
2002: my $start_page = &Apache::loncommon::start_page('Discussion options');
2003: my $table_start =&Apache::loncommon::start_data_table();
2004: $r->print(<<END);
2005: $start_page
2006: <form name="pickpostersform" method="post">
2007: <br />
2008: $table_start
2009: <tr>
2010: <th>No.</th>
2011: <th>Select</th>
2012: <th>Fullname<font color="#999999">(Username/domain)</font></th>
2013: <th>Posts</th>
2014: </tr>
2015: END
2016: my $count = 0;
2017: foreach my $last (sort keys %namesort) {
2018: foreach my $first (sort keys %{$namesort{$last}}) {
2019: foreach (sort @{$namesort{$last}{$first}}) {
2020: my ($uname,$udom) = split/:/,$_;
2021: if (!$uname || !$udom) {
2022: next;
2023: } else {
2024: $count ++;
2025: $r->print(&Apache::loncommon::start_data_table_row().
2026: '<td align="right">'.$count.'</td>
2027: <td align="center"><label><input name="stuinfo" type="checkbox" value="'.$_.'" /></td>
2028: <td>'.$last.', '.$first.' ('.$uname.','.$udom.')</label></td>
2029: <td>'.$postcounts{$_}.'</td>'.
2030: &Apache::loncommon::end_data_table_row());
2031: }
2032: }
2033: }
2034: }
2035: $r->print(&Apache::loncommon::end_data_table());
2036: my $end_page = &Apache::loncommon::end_page();
2037: $r->print(<<END);
2038: <br />
2039: <input type="hidden" name="sortposts" value="$sortposts" />
2040: <input type="hidden" name="userpick" value="$symb" />
2041: <input type="button" name="store" value="Display posts" onClick="javascript:document.pickpostersform.submit()" />
2042: </form>
2043: $end_page
2044: END
2045: }
2046:
2047: sub get_post_versions {
2048: my ($versions,$incoming,$htmldecode,$numver) = @_;
2049: if ($incoming =~ /^<version num="0">/) {
2050: my $p = HTML::LCParser->new(\$incoming);
2051: my $done = 0;
2052:
2053: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2054: my $num = $token->[1]{num};
2055: my $text = $p->get_text("/version");
2056: if (defined($numver)) {
2057: if ($num == $numver) {
2058: if ($htmldecode) {
2059: $text = &HTML::Entities::decode($text);
2060: }
2061: $$versions{$numver}=$text;
2062: $done = 1;
2063: }
2064: } else {
2065: if ($htmldecode) {
2066: $text = &HTML::Entities::decode($text);
2067: }
2068: $$versions{$num}=$text;
2069: }
2070: }
2071: } else {
2072: if (!defined($numver)) {
2073: $numver = 0;
2074: }
2075: if ($htmldecode) {
2076: $$versions{$numver} = $incoming;
2077: } else {
2078: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2079: }
2080: }
2081: return;
2082: }
2083:
2084: sub get_post_attachments {
2085: my ($attachments,$attachmenturls) = @_;
2086: my $num;
2087: if ($attachmenturls =~ m/^<attachment id="0">/) {
2088: my $p = HTML::LCParser->new(\$attachmenturls);
2089: while (my $token = $p->get_tag("attachment","filename","post")) {
2090: if ($token->[0] eq "attachment") {
2091: $num = $token->[1]{id};
2092: %{$$attachments{$num}} =();
2093: } elsif ($token->[0] eq "filename") {
2094: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2095: } elsif ($token->[0] eq "post") {
2096: my $id = $token->[1]{id};
2097: $$attachments{$num}{$id} = $p->get_text("/post");
2098: }
2099: }
2100: } else {
2101: %{$$attachments{'0'}} = ();
2102: $$attachments{'0'}{'filename'} = $attachmenturls;
2103: $$attachments{'0'}{'0'} = 'n';
2104: }
2105:
2106: return;
2107: }
2108:
2109: sub fail_redirect {
2110: my ($r,$feedurl) = @_;
2111: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2112: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2113: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,
2114: {'redirect' => [2,$feedurl],
2115: 'only_body' => 1,}));
2116: $r->print(<<ENDFAILREDIR);
2117: <img align="right" src="$logo" />
2118: <b>Sorry, no recipients ...</b>
2119: ENDFAILREDIR
2120: $r->print(&Apache::loncommon::end_page());
2121: }
2122:
2123: sub redirect_back {
2124: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$numpicks) = @_;
2125: my $sorttag = '';
2126: my $roletag = '';
2127: my $statustag = '';
2128: my $sectag = '';
2129: my $userpicktag = '';
2130: my $qrystr = '';
2131: my $prevtag = '';
2132:
2133: &Apache::loncommon::content_type($r,'text/html');
2134: $r->send_http_header;
2135:
2136: &dewrapper(\$feedurl);
2137: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2138: if ($previous > 0) {
2139: $qrystr = 'previous='.$previous;
2140: if ($feedurl =~ /\?register=1/) {
2141: $feedurl .= '&'.$qrystr;
2142: } else {
2143: $feedurl .= '?'.$qrystr;
2144: }
2145: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2146: }
2147: if (defined($sort)) {
2148: my $sortqry = 'sortposts='.$sort;
2149: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2150: $feedurl .= '&'.$sortqry;
2151: } else {
2152: $feedurl .= '?'.$sortqry;
2153: }
2154: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2155: if (defined($numpicks)) {
2156: my $userpickqry = 'totposters='.$numpicks;
2157: $feedurl .= '&'.$userpickqry;
2158: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2159: } else {
2160: if (ref($sectionpick) eq 'ARRAY') {
2161: $feedurl .= '§ionpick=';
2162: $sectag .= '<input type="hidden" name="sectionpick" value="';
2163: foreach (@{$sectionpick}) {
2164: $feedurl .= $_.',';
2165: $sectag .= $_.',';
2166: }
2167: $feedurl =~ s/,$//;
2168: $sectag =~ s/,$//;
2169: $sectag .= '" />';
2170: } else {
2171: $feedurl .= '§ionpick='.$sectionpick;
2172: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2173: }
2174: if (ref($rolefilter) eq 'ARRAY') {
2175: $feedurl .= '&rolefilter=';
2176: $roletag .= '<input type="hidden" name="rolefilter" value="';
2177: foreach (@{$rolefilter}) {
2178: $feedurl .= $_.',';
2179: $roletag .= $_.',';
2180: }
2181: $feedurl =~ s/,$//;
2182: $roletag =~ s/,$//;
2183: $roletag .= '" />';
2184: } else {
2185: $feedurl .= '&rolefilter='.$rolefilter;
2186: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2187: }
2188: $feedurl .= '&statusfilter='.$statusfilter;
2189: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2190: }
2191: }
2192: $feedurl=&Apache::lonenc::check_encrypt($feedurl);
2193: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2194: my %onload;
2195: if ($env{'environment.remote'} ne 'off') {
2196: $onload{'onload'} =
2197: "if (window.name!='loncapaclient') { this.document.reldt.submit(); self.window.close(); }";
2198: }
2199: my $start_page=
2200: &Apache::loncommon::start_page('Feedback sent',undef,
2201: {'redirect' => [2,$feedurl],
2202: 'only_body' => 1,
2203: 'add_entries' => \%onload});
2204: my $end_page = &Apache::loncommon::end_page();
2205:
2206: $r->print(<<ENDREDIR);
2207: $start_page
2208: <img align="right" src="$logo" />
2209: $typestyle
2210: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2211: $blog
2212: <font color="red">$status</font>
2213: <form name="reldt" action="$feedurl" target="loncapaclient">
2214: $prevtag
2215: $sorttag
2216: $statustag
2217: $roletag
2218: $sectag
2219: $userpicktag
2220: </form>
2221: $end_page
2222: ENDREDIR
2223: }
2224:
2225: sub no_redirect_back {
2226: my ($r,$feedurl) = @_;
2227: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2228:
2229: my %onload;
2230: if ($env{'environment.remote'} ne 'off') {
2231: $onload{'onload'} =
2232: "if (window.name!='loncapaclient') { self.window.close(); }";
2233: }
2234:
2235: my %body_options = ('only_body' => 1,
2236: 'bgcolor' => '#FFFFFF',
2237: 'add_entries' => \%onload,);
2238:
2239: if ($feedurl !~ m{^/adm/feedback}) {
2240: $body_options{'rediect'} = [2,$feedurl];
2241: }
2242: my $start_page=
2243: &Apache::loncommon::start_page('Feedback not sent',undef,
2244: \%body_options);
2245:
2246: my $end_page = &Apache::loncommon::end_page();
2247:
2248: $feedurl=&Apache::lonenc::check_encrypt($feedurl);
2249: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2250: $r->print (<<ENDNOREDIRTWO);
2251: $start_page
2252: <img align="right" src="$logo" />
2253: <b>$nofeed</b>
2254: <br />
2255: $end_page
2256: ENDNOREDIRTWO
2257: }
2258:
2259: sub screen_header {
2260: my ($feedurl,$symb) = @_;
2261: my $msgoptions='';
2262: my $discussoptions='';
2263: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2264: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2265: $msgoptions=
2266: '<p><label><input type="radio" name="discuss" value="author" /> '.
2267: &mt('Feedback to resource author').'</label></p>';
2268: }
2269: if (&feedback_available(1)) {
2270: $msgoptions.=
2271: '<p><label><input type="radio" name="discuss" value="question" /> '.
2272: &mt('Question about resource content').'</label></p>';
2273: }
2274: if (&feedback_available(0,1)) {
2275: $msgoptions.=
2276: '<p><label><input type="radio" name="discuss" value="course" /> '.
2277: &mt('Question/Comment/Feedback about course content').
2278: '</label></p>';
2279: }
2280: if (&feedback_available(0,0,1)) {
2281: $msgoptions.=
2282: '<p><label><input type="radio" name="discuss" value="policy" /> '.
2283: &mt('Question/Comment/Feedback about course policy').
2284: '</label></p>';
2285: }
2286: }
2287: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2288: if (&discussion_open(undef,$symb) &&
2289: &Apache::lonnet::allowed('pch',
2290: $env{'request.course.id'}.
2291: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
2292: $discussoptions='<label><input type="radio" name="discuss" value="nonanon" checked="checked" /> '.
2293: &mt('Contribution to course discussion of resource');
2294: $discussoptions.='</label><br /><label><input type="radio" name="discuss" value="anon" /> '.
2295: &mt('Anonymous contribution to course discussion of resource').
2296: ' <i>('.&mt('name only visible to course faculty').')</i></label> '.
2297: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
2298: }
2299: $discussoptions.='<br /><label><input type="checkbox" name="blog" /> '.
2300: &mt('Add to my public course blog').'</label>';
2301: }
2302: if ($msgoptions) { $msgoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/feedback.gif').'" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
2303: if ($discussoptions) {
2304: $discussoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
2305: return $msgoptions.$discussoptions;
2306: }
2307:
2308: sub resource_output {
2309: my ($feedurl) = @_;
2310: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2311: $usersaw=~s/\<body[^\>]*\>//gi;
2312: $usersaw=~s/\<\/body\>//gi;
2313: $usersaw=~s/\<html\>//gi;
2314: $usersaw=~s/\<\/html\>//gi;
2315: $usersaw=~s/\<head\>//gi;
2316: $usersaw=~s/\<\/head\>//gi;
2317: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2318: return $usersaw;
2319: }
2320:
2321: sub clear_out_html {
2322: my ($message,$override,$ignore_htmlarea)=@_;
2323: if (!$ignore_htmlarea
2324: && !&Apache::lonhtmlcommon::htmlareablocked()) { return $message; }
2325: # Always allow the <m>-tag
2326: my %html=(M=>1);
2327: # Check if more is allowed
2328: my $cid=$env{'request.course.id'};
2329: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2330: ($override)) {
2331: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2332: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2333: # <SUP>
2334: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2335: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
2336: M=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
2337: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1);
2338: }
2339: # Do the substitution of everything that is not explicitly allowed
2340: $message =~ s/\<(\/?\s*(\w*)[^\>\<]*)/
2341: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2342: $message =~ s/(\<?\s*(\w*)[^\<\>]*)\>/
2343: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2344: return $message;
2345: }
2346:
2347: sub assemble_email {
2348: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
2349: my $email=<<"ENDEMAIL";
2350: $message
2351: ENDEMAIL
2352: my $citations=<<"ENDCITE";
2353: <h2>Previous attempts of student (if applicable)</h2>
2354: $prevattempts
2355: <br /><hr />
2356: <h2>Original screen output (if applicable)</h2>
2357: $usersaw
2358: <h2>Correct Answer(s) (if applicable)</h2>
2359: $useranswer
2360: ENDCITE
2361: return ($email,$citations);
2362: }
2363:
2364: sub secapply {
2365: my $rec=shift;
2366: my $defaultflag=shift;
2367: $rec=~s/\s+//g;
2368: $rec=~s/\@/\:/g;
2369: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
2370: if ($sections) {
2371: foreach (split(/\;/,$sections)) {
2372: if (($_ eq $env{'request.course.sec'}) ||
2373: ($defaultflag && ($_ eq '*'))) {
2374: return $adr;
2375: }
2376: }
2377: } else {
2378: return $rec;
2379: }
2380: return '';
2381: }
2382:
2383: =pod
2384:
2385: =over 4
2386:
2387: =item *
2388:
2389: decide_receiver($feedurl,$author,$question,$course,$policy,$defaultflag);
2390:
2391: Arguments
2392: $feedurl - /res/ url of resource (only need if $author is true)
2393: $author,$question,$course,$policy - all true/false parameters
2394: if true will attempt to find the addresses of user that should receive
2395: this type of feedback (author - feedback to author of resource $feedurl,
2396: $question 'Resource Content Questions', $course 'Course Content Question',
2397: $policy 'Course Policy')
2398: (Additionally it also checks $env for whether the corresponding form.<name>
2399: element exists, for ease of use in a html response context)
2400:
2401: $defaultflag - (internal should be left blank) if true gather addresses
2402: that aren't for a section even if I have a section
2403: (used for reccursion internally, first we look for
2404: addresses for our specific section then we recurse
2405: and look for non section addresses)
2406:
2407: Returns
2408: $typestyle - string of html text, describing what addresses were found
2409: %to - a hash, which keys are addresses of users to send messages to
2410: the keys will look like name:domain
2411:
2412: =cut
2413:
2414: sub decide_receiver {
2415: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
2416: my $typestyle='';
2417: my %to=();
2418: if ($env{'form.discuss'} eq 'author' ||$author) {
2419: $typestyle.='Submitting as Author Feedback<br />';
2420: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
2421: $to{$2.':'.$1}=1;
2422: }
2423: if ($env{'form.discuss'} eq 'question' ||$question) {
2424: $typestyle.=&mt('Submitting as Question').'<br />';
2425: foreach (split(/\,/,
2426: $env{'course.'.$env{'request.course.id'}.'.question.email'})
2427: ) {
2428: my $rec=&secapply($_,$defaultflag);
2429: if ($rec) { $to{$rec}=1; }
2430: }
2431: }
2432: if ($env{'form.discuss'} eq 'course' ||$course) {
2433: $typestyle.=&mt('Submitting as Comment').'<br />';
2434: foreach (split(/\,/,
2435: $env{'course.'.$env{'request.course.id'}.'.comment.email'})
2436: ) {
2437: my $rec=&secapply($_,$defaultflag);
2438: if ($rec) { $to{$rec}=1; }
2439: }
2440: }
2441: if ($env{'form.discuss'} eq 'policy' ||$policy) {
2442: $typestyle.=&mt('Submitting as Policy Feedback').'<br />';
2443: foreach (split(/\,/,
2444: $env{'course.'.$env{'request.course.id'}.'.policy.email'})
2445: ) {
2446: my $rec=&secapply($_,$defaultflag);
2447: if ($rec) { $to{$rec}=1; }
2448: }
2449: }
2450: if ((scalar(%to) eq '0') && (!$defaultflag)) {
2451: ($typestyle,%to)=
2452: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
2453: }
2454: return ($typestyle,%to);
2455: }
2456:
2457: sub feedback_available {
2458: my ($question,$course,$policy)=@_;
2459: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
2460: return scalar(%to);
2461: }
2462:
2463: sub send_msg {
2464: my ($title,$feedurl,$email,$citations,$attachmenturl,%to)=@_;
2465: my $status='';
2466: my $sendsomething=0;
2467: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
2468: unless ($title=~/\w/) { $title=&mt('Feedback'); }
2469: foreach (keys %to) {
2470: if ($_) {
2471: my $declutter=&Apache::lonnet::declutter($feedurl);
2472: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
2473: $title.' ['.$declutter.']',$email,$citations,$feedurl,
2474: $attachmenturl)=~/ok/) {
2475: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
2476: } else {
2477: $sendsomething++;
2478: }
2479: }
2480: }
2481:
2482: my %record=&Apache::lonnet::restore('_feedback');
2483: my ($temp)=keys %record;
2484: unless ($temp=~/^error\:/) {
2485: my %newrecord=();
2486: $newrecord{'resource'}=$feedurl;
2487: $newrecord{'subnumber'}=$record{'subnumber'}+1;
2488: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
2489: $status.='<br />'.&mt('Not registered').'<br />';
2490: }
2491: }
2492:
2493: return ($status,$sendsomething);
2494: }
2495:
2496: sub adddiscuss {
2497: my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
2498: my $status='';
2499: my $realsymb;
2500: if ($symb=~/^bulletin___/) {
2501: my $filename=(&Apache::lonnet::decode_symb($symb))[2];
2502: $filename=~s|^adm/wrapper/||;
2503: $realsymb=&Apache::lonnet::symbread($filename);
2504: }
2505: if (&discussion_open(undef,$realsymb) &&
2506: &Apache::lonnet::allowed('pch',$env{'request.course.id'}.
2507: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
2508:
2509: my %contrib=('message' => $email,
2510: 'sendername' => $env{'user.name'},
2511: 'senderdomain' => $env{'user.domain'},
2512: 'screenname' => $env{'environment.screenname'},
2513: 'plainname' => $env{'environment.firstname'}.' '.
2514: $env{'environment.middlename'}.' '.
2515: $env{'environment.lastname'}.' '.
2516: $env{'enrironment.generation'},
2517: 'attachmenturl'=> $attachmenturl,
2518: 'subject' => $subject);
2519: if ($env{'form.replydisc'}) {
2520: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
2521: }
2522: if ($anon) {
2523: $contrib{'anonymous'}='true';
2524: }
2525: if (($symb) && ($email)) {
2526: if ($env{'form.editdisc'}) {
2527: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
2528: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
2529: $contrib{'timestamp'} = time;
2530: $contrib{'history'} = '';
2531: my $numoldver = 0;
2532: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
2533: &Apache::lonenc::check_decrypt(\$oldsymb);
2534: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
2535: # get timestamp for last post and history
2536: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
2537: $env{'course.'.$env{'request.course.id'}.'.domain'},
2538: $env{'course.'.$env{'request.course.id'}.'.num'});
2539: if (defined($oldcontrib{$oldidx.':replyto'})) {
2540: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
2541: }
2542: if (defined($oldcontrib{$oldidx.':history'})) {
2543: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
2544: my @oldversions = split/:/,$oldcontrib{$oldidx.':history'};
2545: $numoldver = @oldversions;
2546: } else {
2547: $numoldver = 1;
2548: }
2549: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
2550: }
2551: my $numnewver = $numoldver + 1;
2552: if (defined($oldcontrib{$oldidx.':subject'})) {
2553: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
2554: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
2555: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
2556: } else {
2557: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
2558: }
2559: }
2560: if (defined($oldcontrib{$oldidx.':message'})) {
2561: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
2562: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
2563: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
2564: } else {
2565: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
2566: }
2567: }
2568: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
2569: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
2570: $oldsymb,$oldidx,\%contrib,
2571: $env{'course.'.$env{'request.course.id'}.'.domain'},
2572: $env{'course.'.$env{'request.course.id'}.'.num'});
2573: $status='Editing class discussion'.($anon?' (anonymous)':'');
2574: } else {
2575: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
2576: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
2577: $env{'course.'.$env{'request.course.id'}.'.domain'},
2578: $env{'course.'.$env{'request.course.id'}.'.num'});
2579: }
2580: my %storenewentry=($symb => time);
2581: $status.='<br />'.&mt('Updating discussion time').': '.
2582: &Apache::lonnet::put('discussiontimes',\%storenewentry,
2583: $env{'course.'.$env{'request.course.id'}.'.domain'},
2584: $env{'course.'.$env{'request.course.id'}.'.num'});
2585: }
2586: my %record=&Apache::lonnet::restore('_discussion');
2587: my ($temp)=keys %record;
2588: unless ($temp=~/^error\:/) {
2589: my %newrecord=();
2590: $newrecord{'resource'}=$symb;
2591: $newrecord{'subnumber'}=$record{'subnumber'}+1;
2592: $status.='<br />'.&mt('Registering').': '.
2593: &Apache::lonnet::cstore(\%newrecord,'_discussion');
2594: }
2595: } else {
2596: $status.='Failed.';
2597: }
2598: return $status.'<br />';
2599: }
2600:
2601: # ----------------------------------------------------------- Preview function
2602:
2603: sub show_preview {
2604: my ($r) = @_;
2605: &Apache::loncommon::content_type($r,'text/html');
2606: $r->send_http_header;
2607: my $message=&clear_out_html($env{'form.comment'});
2608: &newline_to_br(\$message);
2609: $message=&Apache::lonspeller::markeduptext($message);
2610: $message=&Apache::lontexconvert::msgtexconverted($message);
2611: my $subject=&clear_out_html($env{'form.subject'},undef,1);
2612: $subject=~s/\n/\<br \/\>/g;
2613: $subject=&Apache::lontexconvert::msgtexconverted($subject);
2614: my $start_page=
2615: &Apache::loncommon::start_page('Preview',undef,
2616: {'only_body' => 1,});
2617:
2618: my $end_page = &Apache::loncommon::end_page();
2619:
2620: $r->print($start_page.'<table border="2"><tr><td>'.
2621: '<b>Subject:</b> '.$subject.'<br /><br />'.
2622: $message.'</td></tr></table>'.$end_page);
2623: }
2624:
2625:
2626: sub newline_to_br {
2627: my ($message)=@_;
2628: my $newmessage;
2629: my $parser=HTML::LCParser->new($message);
2630: while (my $token=$parser->get_token()) {
2631: if ($token->[0] eq 'T') {
2632: my $text=$token->[1];
2633: $text=~s/\n/\<br \/\>/g;
2634: $newmessage.=$text;
2635: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
2636: $newmessage.=$token->[1];
2637: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
2638: $newmessage.=$token->[2];
2639: } elsif ($token->[0] eq 'S') {
2640: $newmessage.=$token->[4];
2641: }
2642:
2643: }
2644: $$message=$newmessage;
2645: }
2646:
2647: sub generate_preview_button {
2648: my ($formname,$fieldname)=@_;
2649: unless ($formname) { $formname='mailform'; }
2650: unless ($fieldname) { $fieldname='comment'; }
2651: my $pre=&mt("Show Preview and Check Spelling");
2652: return(<<ENDPREVIEW);
2653: <br />
2654: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
2655: <input type="hidden" name="subject">
2656: <input type="hidden" name="comment" />
2657: <input type="button" value="$pre"
2658: 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();" />
2659: </form>
2660: ENDPREVIEW
2661: }
2662:
2663: sub modify_attachments {
2664: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls)=@_;
2665: my $orig_subject = &unescape($env{'form.subject'});
2666: my $subject=&clear_out_html($orig_subject,undef,1);
2667: $subject=~s/\n/\<br \/\>/g;
2668: $subject=&Apache::lontexconvert::msgtexconverted($subject);
2669: my $timestamp=$env{'form.timestamp'};
2670: my $numoldver=$env{'form.numoldver'};
2671:
2672: my $msg = '';
2673: my %attachments = ();
2674: my %currattach = ();
2675: if ($idx) {
2676: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
2677: }
2678: &Apache::lonenc::check_encrypt(\$symb);
2679: my $js = <<END;
2680: <script type="text/javascript">
2681: function setAction () {
2682: document.modattachments.action = document.modattachments.origpage.value;
2683: document.modattachments.submit();
2684: }
2685: </script>
2686: END
2687:
2688: my $start_page =
2689: &Apache::loncommon::start_page('Discussion Post Attachments',$js);
2690: my $end_page =
2691: &Apache::loncommon::end_page();
2692:
2693: $r->print(<<END);
2694: $start_page
2695: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
2696: <table border="2">
2697: <tr>
2698: <td>
2699: <b>Subject:</b> $subject</b><br /><br />
2700: END
2701: if ($idx) {
2702: if ($attachmenturls) {
2703: my @currold = keys %currattach;
2704: if (@currold > 0) {
2705: $r->print("The following attachments were part of the most recent saved version of this posting.<br />Check the checkboxes for any you wish to remove<br />\n");
2706: foreach my $id (@currold) {
2707: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
2708: $attachurl =~ m#/([^/]+)$#;
2709: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
2710: }
2711: $r->print("<br />");
2712: }
2713: }
2714: }
2715: if (@{$currnewattach} > 0) {
2716: $r->print("The following attachments have been uploaded for inclusion with this posting.<br />Check the checkboxes for any you wish to remove<br />\n");
2717: foreach (@{$currnewattach}) {
2718: $_ =~ m#/([^/]+)$#;
2719: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$_.'" /> '.$1.'</label><br />'."\n");
2720: }
2721: $r->print("<br />");
2722: }
2723: $r->print(<<END);
2724: Add a new attachment to this post. <input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onClick="this.form.submit()" />
2725: </td>
2726: </tr>
2727: </table>
2728: <input type="hidden" name="subject" value="$env{'form.subject'}" />
2729: <input type="hidden" name="comment" value="$env{'form.comment'}" />
2730: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
2731: <input type="hidden" name="idx" value="$env{'form.idx'}" />
2732: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
2733: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
2734: <input type="hidden" name="blog" value="$env{'form.blog'}" />
2735: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
2736: END
2737: foreach (@{$currnewattach}) {
2738: $r->print('<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n");
2739: }
2740: foreach (@{$currdelold}) {
2741: $r->print('<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n");
2742: }
2743: $r->print(<<END);
2744: <input type="button" name="rtntoedit" value="Store Changes" onClick="setAction()"/>
2745: </form>
2746: $end_page
2747: END
2748: return;
2749: }
2750:
2751: sub process_attachments {
2752: my ($currnewattach,$currdelold,$keepold) = @_;
2753:
2754: @{$currnewattach}=
2755: &Apache::loncommon::get_env_multiple('form.currnewattach');
2756: @{$currdelold}=
2757: &Apache::loncommon::get_env_multiple('form.deloldattach');
2758: if (exists($env{'form.delnewattach'})) {
2759: my @currdelnew =
2760: &Apache::loncommon::get_env_multiple('form.delnewattach');
2761: my @currnew = ();
2762: foreach my $newone (@{$currnewattach}) {
2763: my $delflag = 0;
2764: foreach (@currdelnew) {
2765: if ($newone eq $_) {
2766: $delflag = 1;
2767: last;
2768: }
2769: }
2770: unless ($delflag) {
2771: push @currnew, $newone;
2772: }
2773: }
2774: @{$currnewattach} = @currnew;
2775: }
2776: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
2777: }
2778:
2779: sub generate_attachments_button {
2780: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,$numoldver,$mode) = @_;
2781: my $origpage = $ENV{'REQUEST_URI'};
2782: my $att=$attachnum.' '.&mt("attachments");
2783: my $response = (<<END);
2784: <br />
2785: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
2786: Click to add/remove attachments: <input type="button" value="$att"
2787: 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);
2788: END
2789: unless ($mode eq 'board') {
2790: $response .= 'javascript:anonchk();';
2791: }
2792: $response .= (<<ENDATTACH);
2793: this.form.submit();" />
2794: <input type="hidden" name="origpage" value="$origpage" />
2795: <input type="hidden" name="idx" value="$idx" />
2796: <input type="hidden" name="timestamp" value="$now" />
2797: <input type="hidden" name="subject" />
2798: <input type="hidden" name="comment" />
2799: <input type="hidden" name="blog" value = "0" />
2800: <input type="hidden" name="discuss" value = "0" />
2801: <input type="hidden" name="numoldver" value="$numoldver" />
2802: ENDATTACH
2803: if (defined($deloldattach)) {
2804: if (@{$deloldattach} > 0) {
2805: foreach (@{$deloldattach}) {
2806: $response .= '<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n";
2807: }
2808: }
2809: }
2810: if (defined($currnewattach)) {
2811: if (@{$currnewattach} > 0) {
2812: foreach (@{$currnewattach}) {
2813: $response .= '<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n";
2814: }
2815: }
2816: }
2817: $response .= '</form>';
2818: return $response;
2819: }
2820:
2821: sub extract_attachments {
2822: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
2823: %{$attachments}=();
2824: &get_post_attachments($attachments,$attachmenturls);
2825: foreach my $id (sort keys %{$attachments}) {
2826: if (exists($$attachments{$id}{$numoldver})) {
2827: if (defined($currdelold)) {
2828: if (@{$currdelold} > 0) {
2829: unless (grep/^$id$/,@{$currdelold}) {
2830: $$currattach{$id} = $$attachments{$id}{$numoldver};
2831: }
2832: } else {
2833: $$currattach{$id} = $$attachments{$id}{$numoldver};
2834: }
2835: } else {
2836: $$currattach{$id} = $$attachments{$id}{$numoldver};
2837: }
2838: }
2839: }
2840: my @attached = (sort { $a <=> $b } keys %{$currattach});
2841: if (@attached == 1) {
2842: my $id = $attached[0];
2843: my $attachurl;
2844: if ($attachmenturls =~ m/^<attachment id="0">/) {
2845: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
2846: } else {
2847: $attachurl = $$attachments{$id}{'filename'};
2848: }
2849: $attachurl=~m|/([^/]+)$|;
2850: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
2851: $1.'</tt></a><br />';
2852: &Apache::lonnet::allowuploaded('/adm/feedback',
2853: $attachurl);
2854: } elsif (@attached > 1) {
2855: $$message.='<ol>';
2856: foreach (@attached) {
2857: my $id = $_;
2858: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
2859: my ($fname)
2860: =($attachurl=~m|/([^/]+)$|);
2861: $$message .= '<li><a href="'.$attachurl.
2862: '"><tt>'.
2863: $fname.'</tt></a></li>';
2864: &Apache::lonnet::allowuploaded('/adm/feedback',
2865: $attachurl);
2866: }
2867: $$message .= '</ol>';
2868: }
2869: }
2870:
2871: sub construct_attachmenturl {
2872: my ($currnewattach,$keepold,$symb,$idx)=@_;
2873: my $oldattachmenturl;
2874: my $newattachmenturl;
2875: my $startnum = 0;
2876: my $currver = 0;
2877: if (($env{'form.editdisc'}) && ($idx)) {
2878: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2879: $env{'course.'.$env{'request.course.id'}.'.domain'},
2880: $env{'course.'.$env{'request.course.id'}.'.num'});
2881: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
2882: if ($contrib{$idx.':history'}) {
2883: if ($contrib{$idx.':history'} =~ /:/) {
2884: my @oldversions = split/:/,$contrib{$idx.':history'};
2885: $currver = 1 + scalar(@oldversions);
2886: } else {
2887: $currver = 2;
2888: }
2889: } else {
2890: $currver = 1;
2891: }
2892: if ($oldattachmenturl) {
2893: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
2894: my %attachments = ();
2895: my $prevver = $currver-1;
2896: &get_post_attachments(\%attachments,$oldattachmenturl);
2897: my $numattach = scalar(keys %attachments);
2898: $startnum += $numattach;
2899: foreach my $num (sort {$a <=> $b} keys %attachments) {
2900: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
2901: foreach $_ (sort {$a <=> $b} keys %{$attachments{$num}}) {
2902: unless ($_ eq 'filename') {
2903: $newattachmenturl .= '<post id="'.$_.'">'.$attachments{$num}{$_}.'</post>';
2904: }
2905: }
2906: if (grep/^$num$/,@{$keepold}) {
2907: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
2908: }
2909: $newattachmenturl .= '</attachment>';
2910: }
2911: } else {
2912: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
2913: unless (grep/^0$/,@{$keepold}) {
2914: $newattachmenturl .= '<post id="1">n</post>';
2915: }
2916: $newattachmenturl .= '</attachment>';
2917: $startnum ++;
2918: }
2919: }
2920: }
2921: for (my $i=0; $i<@{$currnewattach}; $i++) {
2922: my $attachnum = $startnum + $i;
2923: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
2924: }
2925: return $newattachmenturl;
2926: }
2927:
2928: sub has_discussion {
2929: my $resourcesref = shift;
2930: my $navmap = Apache::lonnavmaps::navmap->new();
2931: my @allres=$navmap->retrieveResources();
2932: foreach my $resource (@allres) {
2933: if ($resource->hasDiscussion()) {
2934: my $ressymb = $resource->wrap_symb();
2935: push @{$resourcesref}, $ressymb;
2936: }
2937: }
2938: return;
2939: }
2940:
2941: sub sort_filter_names {
2942: my ($sort_types,$role_types,$status_types) = @_;
2943: %{$sort_types} = (
2944: ascdate => 'Date order - oldest first',
2945: descdate => 'Date order - newest first',
2946: thread => 'Threaded',
2947: subject => 'By subject',
2948: username => 'By domain and username',
2949: lastfirst => 'By last name, first name'
2950: );
2951: %{$role_types} = (
2952: all => 'All roles',
2953: st => 'Students',
2954: cc => 'Course Coordinators',
2955: in => 'Instructors',
2956: ta => 'TAs',
2957: ep => 'Exam proctors',
2958: ad => 'Administrators',
2959: cr => 'Custom roles'
2960: );
2961: %{$status_types} = (
2962: all => 'Roles of any status',
2963: Active => 'Only active roles',
2964: Expired => 'Only inactive roles'
2965: );
2966: }
2967:
2968: sub handler {
2969: my $r = shift;
2970: if ($r->header_only) {
2971: &Apache::loncommon::content_type($r,'text/html');
2972: $r->send_http_header;
2973: return OK;
2974: }
2975:
2976: # --------------------------- Get query string for limited number of parameters
2977:
2978: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2979: ['hide','unhide','deldisc','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','posterlist','userpick','attach','origpage','currnewattach','deloldattach','keepold','allversions','export','sendmessageonly']);
2980: if ($env{'form.editdisc'}) {
2981: if (!(&editing_allowed())) {
2982: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
2983: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
2984: my $feedurl=&Apache::lonnet::clutter($url);
2985: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />', '0','0','','',$env{'form.previous'},'','','',);
2986: return OK;
2987: }
2988: }
2989: if ($env{'form.discsymb'}) {
2990: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
2991: my $readkey = $symb.'_read';
2992: my $chgcount = 0;
2993: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
2994: foreach my $key (keys %env) {
2995: if ($key =~ m/^form\.postunread_(\d+)/) {
2996: if ($readinghash{$readkey} =~ /\.$1\./) {
2997: $readinghash{$readkey} =~ s/\.$1\.//;
2998: $chgcount ++;
2999: }
3000: } elsif ($key =~ m/^form\.postread_(\d+)/) {
3001: unless ($readinghash{$readkey} =~ /\.$1\./) {
3002: $readinghash{$readkey} .= '.'.$1.'.';
3003: $chgcount ++;
3004: }
3005: }
3006: }
3007: if ($chgcount > 0) {
3008: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3009: \%readinghash,$env{'user.domain'},$env{'user.name'});
3010: }
3011: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
3012: '0','0','','',$env{'form.previous'},'','','',);
3013: return OK;
3014: }
3015: if ($env{'form.allversions'}) {
3016: &Apache::loncommon::content_type($r,'text/html');
3017: &Apache::loncommon::no_cache($r);
3018: $r->send_http_header;
3019:
3020: $r->print(&Apache::loncommon::start_page('Discussion Post Versions'));
3021:
3022: my $crs='/'.$env{'request.course.id'};
3023: if ($env{'request.course.sec'}) {
3024: $crs.='_'.$env{'request.course.sec'};
3025: }
3026: $crs=~s|_|/|g;
3027: my $seeid=&Apache::lonnet::allowed('rin',$crs);
3028: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
3029: ($symb)=&get_feedurl_and_clean_symb($symb);
3030: if ($idx > 0) {
3031: my %messages = ();
3032: my %subjects = ();
3033: my %attachmsgs = ();
3034: my %allattachments = ();
3035: my %imsfiles = ();
3036: my ($screenname,$plainname);
3037: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3038: $env{'course.'.$env{'request.course.id'}.'.domain'},
3039: $env{'course.'.$env{'request.course.id'}.'.num'});
3040: $r->print(&get_post_contents(\%contrib,$idx,$seeid,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname));
3041: }
3042: $r->print(&Apache::loncommon::end_page());
3043: return OK;
3044: }
3045: if ($env{'form.posterlist'}) {
3046: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3047: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
3048: $env{'form.sortposts'});
3049: return OK;
3050: }
3051: if ($env{'form.userpick'}) {
3052: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
3053: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
3054: my $numpicks = @posters;
3055: my %discinfo;
3056: $discinfo{$symb.'_userpick'} = join('&',@posters);
3057: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3058: \%discinfo,$env{'user.domain'},$env{'user.name'});
3059: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3060: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
3061: $numpicks);
3062: return OK;
3063: }
3064: if ($env{'form.applysort'}) {
3065: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3066: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3067: '',$env{'form.previous'},$env{'form.sortposts'},
3068: $env{'form.rolefilter'},$env{'form.statusfilter'},
3069: $env{'form.sectionpick'});
3070: return OK;
3071: } elsif ($env{'form.cmd'} eq 'sortfilter') {
3072: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3073: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
3074: return OK;
3075: } elsif ($env{'form.navtime'}) {
3076: my %discinfo = ();
3077: my @resources = ();
3078: if (defined($env{'form.navmaps'})) {
3079: if ($env{'form.navmaps'} =~ /:/) {
3080: @resources = split/:/,$env{'form.navmaps'};
3081: } else {
3082: @resources = ("$env{'form.navmaps'}");
3083: }
3084: } else {
3085: &has_discussion(\@resources);
3086: }
3087: my $numitems = @resources;
3088: my $feedurl = '/adm/navmaps';
3089: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
3090: my %lt = &Apache::lonlocal::texthash(
3091: 'mnpa' => 'Marked "New" posts as read in a total of',
3092: 'robb' => 'resources/bulletin boards.',
3093: 'twnp' => 'There are currently no resources or bulletin boards with unread discussion postings.'
3094: );
3095: foreach (@resources) {
3096: my $ressymb=$_;
3097: &Apache::lonenc::check_decrypt(\$ressymb);
3098: my $lastkey = $ressymb.'_lastread';
3099: $discinfo{$lastkey} = $env{'form.navtime'};
3100: }
3101: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
3102: if ($numitems > 0) {
3103: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3104: \%discinfo,$env{'user.domain'},$env{'user.name'});
3105: } else {
3106: $textline = "<b>$lt{'twnp'}</b>";
3107: }
3108: &Apache::loncommon::content_type($r,'text/html');
3109: $r->send_http_header;
3110: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
3111: my %onload;
3112: if ($env{'environment.remote'} ne 'off') {
3113: $onload{'onload'} =
3114: "if (window.name!='loncapaclient') { this.document.reldt.submit(); self.window.close(); }";
3115: }
3116:
3117: my $start_page=
3118: &Apache::loncommon::start_page('New posts marked as read',undef,
3119: {'redirect' => [2,$feedurl],
3120: 'only_body' => 1,
3121: 'add_entries' => \%onload});
3122: my $end_page = &Apache::loncommon::end_page();
3123: $r->print (<<ENDREDIR);
3124: $start_page
3125: <img align="right" src="$logo" />
3126: $textline
3127: <form name="reldt" action="$feedurl" target="loncapaclient">
3128: </form>
3129: <br />
3130: $end_page
3131: ENDREDIR
3132: return OK;
3133: } elsif ($env{'form.modifydisp'}) {
3134: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
3135: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
3136: split(/_/,$env{'form.changes'});
3137: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
3138: $dispchgB,$markchg,$toggchg,$feedurl);
3139: return OK;
3140: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
3141: $env{'form.allposts'} || $env{'form.onlyunread'} ||
3142: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
3143: $env{'form.toggon'} || $env{'form.markread'}) {
3144: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3145: my %discinfo;
3146: # ------------------------ Modify setting for read/unread toggle for each post
3147: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
3148: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
3149: # --------- Modify setting for identification of 'NEW' posts in this discussion
3150: if ($env{'form.markondisp'}) {
3151: $discinfo{$symb.'_lastread'} = time;
3152: $discinfo{$symb.'_markondisp'} = 1;
3153: }
3154: if ($env{'form.markonread'}) {
3155: if ( $env{'form.previous'} > 0 ) {
3156: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
3157: }
3158: $discinfo{$symb.'_markondisp'} = 0;
3159: }
3160: # --------------------------------- Modify display setting for this discussion
3161: if ($env{'form.allposts'}) {
3162: $discinfo{$symb.'_showonlyunread'} = 0;
3163: $discinfo{$symb.'_showonlyunmark'} = 0;
3164: }
3165: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
3166: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
3167: # ----------------------------------------------------- Mark new posts not NEW
3168: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
3169: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3170: \%discinfo,$env{'user.domain'},$env{'user.name'});
3171: my $previous=$env{'form.previous'};
3172: if ($env{'form.markondisp'}) { $previous=undef; }
3173: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
3174: '0','0','','',$previous);
3175: return OK;
3176: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
3177: # ----------------------------------------------------------------- Hide/unhide
3178: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
3179: my ($symb,$idx)=split(/\:\:\:/,$entry);
3180: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
3181:
3182: my $crs='/'.$env{'request.course.id'};
3183: if ($env{'request.course.sec'}) {
3184: $crs.='_'.$env{'request.course.sec'};
3185: }
3186: $crs=~s/\_/\//g;
3187: my $seeid=&Apache::lonnet::allowed('rin',$crs);
3188:
3189: if ($env{'form.hide'} && !$seeid && !(&editing_allowed())) {
3190: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />', '0','0','','',$env{'form.previous'},'','','',);
3191: return OK;
3192: }
3193:
3194: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3195: $env{'course.'.$env{'request.course.id'}.'.domain'},
3196: $env{'course.'.$env{'request.course.id'}.'.num'});
3197:
3198: my $currenthidden=$contrib{'hidden'};
3199: my $currentstudenthidden=$contrib{'studenthidden'};
3200:
3201: if ($env{'form.hide'}) {
3202: $currenthidden.='.'.$idx.'.';
3203: unless ($seeid) {
3204: $currentstudenthidden.='.'.$idx.'.';
3205: }
3206: } else {
3207: $currenthidden=~s/\.$idx\.//g;
3208: }
3209: my %newhash=('hidden' => $currenthidden);
3210: if ( ($env{'form.hide'}) && (!$seeid) ) {
3211: $newhash{'studenthidden'} = $currentstudenthidden;
3212: }
3213:
3214: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
3215: $env{'course.'.$env{'request.course.id'}.'.domain'},
3216: $env{'course.'.$env{'request.course.id'}.'.num'});
3217:
3218: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
3219: '0','0','','',$env{'form.previous'});
3220: return OK;
3221: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
3222: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3223: if ($env{'form.cmd'} eq 'threadedon') {
3224: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
3225: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
3226: } else {
3227: &Apache::lonnet::del('environment',['threadeddiscussion']);
3228: &Apache::lonnet::delenv('environment\.threadeddiscussion');
3229: }
3230: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
3231: '0','0','','',$env{'form.previous'});
3232: return OK;
3233: } elsif ($env{'form.deldisc'}) {
3234: # --------------------------------------------------------------- Hide for good
3235: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
3236: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
3237: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3238: $env{'course.'.$env{'request.course.id'}.'.domain'},
3239: $env{'course.'.$env{'request.course.id'}.'.num'});
3240: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
3241: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
3242: $env{'course.'.$env{'request.course.id'}.'.domain'},
3243: $env{'course.'.$env{'request.course.id'}.'.num'});
3244: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
3245: '0','0','','',$env{'form.previous'});
3246: return OK;
3247: } elsif ($env{'form.preview'}) {
3248: # -------------------------------------------------------- User wants a preview
3249: &show_preview($r);
3250: return OK;
3251: } elsif ($env{'form.attach'}) {
3252: # -------------------------------------------------------- Work on attachments
3253: &Apache::loncommon::content_type($r,'text/html');
3254: $r->send_http_header;
3255: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','discuss','blog']);
3256: my (@currnewattach,@currdelold,@keepold);
3257: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
3258: if (exists($env{'form.addnewattach.filename'})) {
3259: unless (length($env{'form.addnewattach'})>131072) {
3260: my $subdir = 'feedback/'.$env{'form.timestamp'};
3261: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
3262: push @currnewattach, $newattachment;
3263: }
3264: }
3265: my $attachmenturls;
3266: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
3267: my $idx = $env{'form.idx'};
3268: if ($idx) {
3269: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3270: $env{'course.'.$env{'request.course.id'}.'.domain'},
3271: $env{'course.'.$env{'request.course.id'}.'.num'});
3272: $attachmenturls = $contrib{$idx.':attachmenturl'};
3273: }
3274: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
3275: $attachmenturls);
3276: return OK;
3277: } elsif ($env{'form.export'}) {
3278: &Apache::loncommon::content_type($r,'text/html');
3279: $r->send_http_header;
3280: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
3281: my $mode='board';
3282: my $status='OPEN';
3283: my $previous=$env{'form.previous'};
3284: if ($feedurl =~ /\.(problem|exam|quiz|assess|survey|form|library|task)$/) {
3285: $mode='problem';
3286: $status=$Apache::inputtags::status[-1];
3287: }
3288: my $discussion = &list_discussion($mode,$status,$symb);
3289: my $start_page =
3290: &Apache::loncommon::start_page('Resource Feedback and Discussion');
3291: my $end_page =
3292: &Apache::loncommon::end_page();
3293: $r->print($start_page.$discussion.$end_page);
3294: return OK;
3295: } else {
3296: # ------------------------------------------------------------- Normal feedback
3297: my $feedurl=$env{'form.postdata'};
3298: $feedurl=~s/^http\:\/\///;
3299: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
3300: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
3301: $feedurl=~s/\?.+$//;
3302:
3303: my $symb;
3304: if ($env{'form.replydisc'}) {
3305: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
3306: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3307: $feedurl=&Apache::lonnet::clutter($url);
3308: } elsif ($env{'form.editdisc'}) {
3309: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3310: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3311: $feedurl=&Apache::lonnet::clutter($url);
3312: } elsif ($env{'form.origpage'}) {
3313: $symb="";
3314: } else {
3315: $symb=&Apache::lonnet::symbread($feedurl);
3316: }
3317: unless ($symb) {
3318: $symb=$env{'form.symb'};
3319: if ($symb) {
3320: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3321: $feedurl=&Apache::lonnet::clutter($url);
3322: }
3323: }
3324: &Apache::lonenc::check_decrypt(\$symb);
3325: my $goahead=1;
3326: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form|task)$/) {
3327: unless ($symb) { $goahead=0; }
3328: }
3329: # backward compatibility (bulletin boards used to be 'wrapped')
3330: &dewrapper(\$feedurl);
3331: if (!$goahead) {
3332: # Ambiguous Problem Resource
3333: $r->internal_redirect('/adm/ambiguous');
3334: return OK;
3335: }
3336: # Go ahead with feedback, no ambiguous reference
3337: unless (
3338: (
3339: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
3340: )
3341: ||
3342: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
3343: ||
3344: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
3345: ) {
3346: &Apache::loncommon::content_type($r,'text/html');
3347: $r->send_http_header;
3348: # Unable to give feedback
3349: &no_redirect_back($r,$feedurl);
3350: return OK;
3351: }
3352: # --------------------------------------------------- Print login screen header
3353: unless ($env{'form.sendit'}) {
3354: &Apache::loncommon::content_type($r,'text/html');
3355: $r->send_http_header;
3356: my $options=&screen_header($feedurl,$symb);
3357: if ($options) {
3358: &mail_screen($r,$feedurl,$options);
3359: } else {
3360: &fail_redirect($r,$feedurl);
3361: }
3362: return OK;
3363: }
3364:
3365: # Get previous user input
3366: my $prevattempts=&Apache::loncommon::get_previous_attempt(
3367: $symb,$env{'user.name'},$env{'user.domain'},
3368: $env{'request.course.id'});
3369:
3370: # Get output from resource
3371: my $usersaw=&resource_output($feedurl);
3372:
3373: # Get resource answer (need to allow student to view grades for this to work)
3374: &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
3375: my $useranswer=&Apache::loncommon::get_student_answers(
3376: $symb,$env{'user.name'},$env{'user.domain'},
3377: $env{'request.course.id'});
3378: &Apache::lonnet::delenv('allowed.vgr');
3379: # Get attachments, if any, and not too large
3380: my $attachmenturl='';
3381: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
3382: ($env{'form.replydisc'})) {
3383: my ($symb,$idx);
3384: if ($env{'form.replydisc'}) {
3385: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
3386: } elsif ($env{'form.editdisc'}) {
3387: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
3388: } elsif ($env{'form.origpage'}) {
3389: $symb = $env{'form.symb'};
3390: }
3391: &Apache::lonenc::check_decrypt(\$symb);
3392: my @currnewattach = ();
3393: my @deloldattach = ();
3394: my @keepold = ();
3395: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
3396: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3397: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
3398: } elsif ($env{'form.attachment.filename'}) {
3399: unless (length($env{'form.attachment'})>131072) {
3400: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback');
3401: }
3402: }
3403: # Filter HTML out of message (could be nasty)
3404: my $message=&clear_out_html($env{'form.comment'});
3405:
3406: # Assemble email
3407: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
3408: $usersaw,$useranswer);
3409:
3410: # Who gets this?
3411: my ($typestyle,%to) = &decide_receiver($feedurl);
3412:
3413: # Actually send mail
3414: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'},
3415: undef,1),
3416: $feedurl,$email,$citations,
3417: $attachmenturl,%to);
3418:
3419: # Discussion? Store that.
3420: my $numpost=0;
3421: if ( ($env{'form.discuss'} ne ''
3422: && $env{'form.discuss'} !~ /^(?:author|question|course|policy)/)
3423: || $env{'form.anondiscuss'} ne '') {
3424: my $subject = &clear_out_html($env{'form.subject'},undef,1);
3425: my $anonmode=($env{'form.discuss'} eq 'anon' || $env{'form.anondiscuss'} );
3426: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
3427: $subject);
3428: $numpost++;
3429: }
3430:
3431: # Add to blog?
3432:
3433: my $blog='';
3434: if ($env{'form.blog'}) {
3435: my $subject = &clear_out_html($env{'form.subject'},undef,1);
3436: $status.=&Apache::lonrss::addentry($env{'user.name'},
3437: $env{'user.domain'},
3438: 'CourseBlog_'.$env{'request.course.id'},
3439: $subject,$message,$feedurl,'public');
3440: $blog='<br />'.&mt('Added to my course blog').'<br />';
3441: }
3442:
3443: # Receipt screen and redirect back to where came from
3444: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$blog,$status,$env{'form.previous'});
3445: }
3446: return OK;
3447: }
3448:
3449: sub wrap_symb {
3450: my ($ressymb)=@_;
3451: if ($ressymb =~ /bulletin___\d+___/) {
3452: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
3453: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
3454: }
3455: }
3456: return $ressymb;
3457: }
3458: sub dewrapper {
3459: my ($feedurl)=@_;
3460: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
3461: $$feedurl=~s|^/adm/wrapper||;
3462: }
3463: }
3464:
3465: sub get_feedurl {
3466: my ($symb)=@_;
3467: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
3468: my $feedurl = &Apache::lonnet::clutter($url);
3469: &dewrapper(\$feedurl);
3470: return $feedurl;
3471: }
3472:
3473: sub get_feedurl_and_clean_symb {
3474: my ($symb)=@_;
3475: &Apache::lonenc::check_decrypt(\$symb);
3476: # backward compatibility (bulletin boards used to be 'wrapped')
3477: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
3478: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
3479: }
3480: my $feedurl = &get_feedurl($symb);
3481: return ($symb,$feedurl);
3482: }
3483:
3484: sub editing_allowed {
3485: my $can_edit = 0;
3486: my $cid = $env{'request.course.id'};
3487: my $role = (split(/\./,$env{'request.role'}))[0];
3488: my $section = $env{'request.course.sec'};
3489: my $allow_editing_config =
3490: $env{'course.'.$cid.'.allow_discussion_post_editing'};
3491: if ($allow_editing_config =~ m/^\s*yes\s*$/i) {
3492: $can_edit = 1;
3493: } else {
3494: foreach my $editor (split(/,/,$allow_editing_config)) {
3495: my ($editor_role,$editor_sec) = split(/:/,$editor);
3496: if ($editor_role eq $role
3497: && defined($editor_sec)
3498: && defined($section)
3499: && $editor_sec eq $section) {
3500: $can_edit = 1;
3501: last;
3502: }
3503: if ($editor_role eq $role
3504: && !defined($editor_sec)) {
3505: $can_edit = 1;
3506: }
3507: }
3508: }
3509: return $can_edit;
3510: }
3511:
3512: 1;
3513: __END__
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