1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.195 2006/05/08 22:07:31 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:
47: sub discussion_open {
48: my ($status,$symb)=@_;
49: if ($env{'request.role.adv'}) { return 1; }
50: if (defined($status) &&
51: !($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
52: || $status eq 'OPEN')) {
53: return 0;
54: }
55: my $close=&Apache::lonnet::EXT('resource.0.discussend',$symb);
56: if (defined($close) && $close ne '' && $close < time) {
57: return 0;
58: }
59: return 1;
60: }
61:
62: sub discussion_visible {
63: my ($status)=@_;
64: if (not &discussion_open($status)) {
65: my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
66: if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden)) {
67: if (!$env{'request.role.adv'}) { return 0; }
68: }
69: }
70: return 1;
71: }
72:
73: sub list_discussion {
74: my ($mode,$status,$ressymb,$imsextras)=@_;
75: my $outputtarget=$env{'form.grade_target'};
76: if (defined($env{'form.export'})) {
77: if($env{'form.export'}) {
78: $outputtarget = 'export';
79: }
80: }
81: if (defined($imsextras)) {
82: if ($$imsextras{'caller'} eq 'imsexport') {
83: $outputtarget = 'export';
84: }
85: }
86: if (not &discussion_visible($status)) { return ''; }
87: my @bgcols = ("#cccccc","#eeeeee");
88: my $discussiononly=0;
89: if ($mode eq 'board') { $discussiononly=1; }
90: unless ($env{'request.course.id'}) { return ''; }
91: my $crs='/'.$env{'request.course.id'};
92: my $cid=$env{'request.course.id'};
93: if ($env{'request.course.sec'}) {
94: $crs.='_'.$env{'request.course.sec'};
95: }
96: $crs=~s/\_/\//g;
97: unless ($ressymb) { $ressymb=&Apache::lonnet::symbread(); }
98: unless ($ressymb) { return ''; }
99: $ressymb=&wrap_symb($ressymb);
100: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
101: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
102: && ($ressymb=~/\.(problem|exam|quiz|assess|survey|form|task)$/));
103:
104: my %usernamesort = ();
105: my %namesort =();
106: my %subjectsort = ();
107:
108: # Get discussion display settings for this discussion
109: my $lastkey = $ressymb.'_lastread';
110: my $showkey = $ressymb.'_showonlyunread';
111: my $markkey = $ressymb.'_showonlyunmark',
112: my $visitkey = $ressymb.'_visit';
113: my $ondispkey = $ressymb.'_markondisp';
114: my $userpickkey = $ressymb.'_userpick';
115: my $toggkey = $ressymb.'_readtoggle';
116: my $readkey = $ressymb.'_read';
117: $ressymb=$encsymb;
118: my %dischash = &Apache::lonnet::get('nohist_'.$cid.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$env{'user.domain'},$env{'user.name'});
119: my %discinfo = ();
120: my $showonlyunread = 0;
121: my $showunmark = 0;
122: my $markondisp = 0;
123: my $prevread = 0;
124: my $previous = 0;
125: my $visit = 0;
126: my $newpostsflag = 0;
127: my @posters = split/\&/,$dischash{$userpickkey};
128:
129: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
130: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','totposters']);
131: my $sortposts = $env{'form.sortposts'};
132: my $statusfilter = $env{'form.statusfilter'};
133: my @sectionpick = ();
134: if ($env{'form.sectionpick'} =~ /,/) {
135: @sectionpick = split/,/,$env{'form.sectionpick'};
136: } else {
137: $sectionpick[0] = $env{'form.sectionpick'};
138: }
139: my @rolefilter = ();
140: if ($env{'form.rolefilter'} =~ /,/) {
141: @rolefilter = split/,/,$env{'form.rolefilter'};
142: } else {
143: $rolefilter[0] = $env{'form.rolefilter'};
144: }
145: my $totposters = $env{'form.totposters'};
146: $previous = $env{'form.previous'};
147: if ($previous > 0) {
148: $prevread = $previous;
149: } elsif (defined($dischash{$lastkey})) {
150: unless ($dischash{$lastkey} eq '') {
151: $prevread = $dischash{$lastkey};
152: }
153: }
154:
155: # Get information about students and non-students in course for filtering display of posts
156: my %roleshash = ();
157: my %roleinfo = ();
158: if ($env{'form.rolefilter'}) {
159: %roleshash = &Apache::lonnet::dump('nohist_userroles',
160: $env{'course.'.$cid.'.domain'},
161: $env{'course.'.$cid.'.num'});
162: foreach (keys %roleshash) {
163: my ($role,$uname,$udom,$sec) = split/:/,$_;
164: if ($role =~ /^cr/) {
165: $role = 'cr';
166: }
167: my ($end,$start) = split/:/,$roleshash{$_};
168: my $now = time;
169: my $status = 'Active';
170: if (($now < $start) || ($end > 0 && $now > $end)) {
171: $status = 'Expired';
172: }
173: if ($uname && $udom) {
174: push @{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status;
175: }
176: }
177: my ($classlist) = &Apache::loncoursedata::get_classlist(
178: $env{'course.'.$cid.'.domain'},
179: $env{'course.'.$cid.'.num'});
180: my $sec_index = &Apache::loncoursedata::CL_SECTION();
181: my $status_index = &Apache::loncoursedata::CL_STATUS();
182: while (my ($student,$data) = each %$classlist) {
183: my ($section,$status) = ($data->[$sec_index],
184: $data->[$status_index]);
185: push @{$roleinfo{$student}}, 'st:'.$section.':'.$status;
186: }
187: }
188:
189: # Get discussion display default settings for user
190: if ($env{'environment.discdisplay'} eq 'unread') {
191: $showonlyunread = 1;
192: }
193: if ($env{'environment.discmarkread'} eq 'ondisp') {
194: $markondisp = 1;
195: }
196:
197: # Override user's default if user specified display setting for this discussion
198: if (defined($dischash{$ondispkey})) {
199: unless ($dischash{$ondispkey} eq '') {
200: $markondisp = $dischash{$ondispkey};
201: }
202: }
203: if ($markondisp) {
204: $discinfo{$lastkey} = time;
205: }
206:
207: if (defined($dischash{$showkey})) {
208: unless ($dischash{$showkey} eq '') {
209: $showonlyunread = $dischash{$showkey};
210: }
211: }
212:
213: if (defined($dischash{$markkey})) {
214: unless ($dischash{$markkey} eq '') {
215: $showunmark = $dischash{$markkey};
216: }
217: }
218:
219: if (defined($dischash{$visitkey})) {
220: unless ($dischash{$visitkey} eq '') {
221: $visit = $dischash{$visitkey};
222: }
223: }
224: $visit ++;
225:
226: my $seeid=&Apache::lonnet::allowed('rin',$crs);
227: my @discussionitems=();
228: my %shown = ();
229: my @posteridentity=();
230:
231: my $current=0;
232: my $visible=0;
233: my @depth=();
234: my @replies = ();
235: my %alldiscussion=();
236: my %imsitems=();
237: my %imsfiles=();
238: my %notshown = ();
239: my %newitem = ();
240: my $maxdepth=0;
241: my %anonhash=();
242: my $anoncnt=0;
243: my $target='';
244: unless ($env{'browser.interface'} eq 'textual' ||
245: $env{'environment.remote'} eq 'off' ) {
246: $target='target="LONcom"';
247: }
248:
249: my $now = time;
250: $discinfo{$visitkey} = $visit;
251:
252: &Apache::lonnet::put('nohist_'.$cid.'_discuss',\%discinfo,$env{'user.domain'},$env{'user.name'});
253: &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);
254:
255: my $discussion='';
256: my $manifestfile;
257: my $manifestok=0;
258: my $tempexport;
259: my $imsresources;
260: my $copyresult;
261:
262: my $function = &Apache::loncommon::get_users_function();
263: my $color = &Apache::loncommon::designparm($function.'.tabbg',
264: $env{'user.domain'});
265: my %lt = &Apache::lonlocal::texthash(
266: 'cuse' => 'Current discussion settings',
267: 'allposts' => 'All posts',
268: 'unread' => 'New posts only',
269: 'unmark' => 'Unread only',
270: 'ondisp' => 'Once displayed',
271: 'onmark' => 'Once marked not NEW',
272: 'toggoff' => 'Off',
273: 'toggon' => 'On',
274: 'disa' => 'Posts to be displayed',
275: 'npce' => 'Posts cease to be marked "NEW"',
276: 'epcb' => 'Each post can be toggled read/unread',
277: 'chgt' => 'Change',
278: 'disp' => 'Display',
279: 'nolo' => 'Not new',
280: 'togg' => 'Toggle read/unread',
281: );
282:
283: my $currdisp = $lt{'allposts'};
284: my $currmark = $lt{'onmark'};
285: my $currtogg = $lt{'toggoff'};
286: my $dispchange = $lt{'unread'};
287: my $markchange = $lt{'ondisp'};
288: my $toggchange = $lt{'toggon'};
289: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
290: my $displinkA = 'onlyunread';
291: my $displinkB = 'onlyunmark';
292: my $marklink = 'markondisp';
293: my $togglink = 'toggon';
294:
295: if ($markondisp) {
296: $currmark = $lt{'ondisp'};
297: $markchange = $lt{'onmark'};
298: $marklink = 'markonread';
299: }
300:
301: if ($showonlyunread) {
302: $currdisp = $lt{'unread'};
303: $dispchange = $lt{'allposts'};
304: $displinkA = 'allposts';
305: }
306:
307: if ($showunmark) {
308: $currdisp = $lt{'unmark'};
309: $dispchange = $lt{'unmark'};
310: $displinkA='allposts';
311: $displinkB='onlyunread';
312: $showonlyunread = 0;
313: }
314:
315: if ($dischash{$toggkey}) {
316: $currtogg = $lt{'toggon'};
317: $toggchange = $lt{'toggoff'};
318: $togglink = 'toggoff';
319: }
320:
321: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
322:
323: if ($newpostsflag) {
324: $chglink .= '&previous='.$prevread;
325: }
326:
327: if ($visible) {
328: # Print the discusssion
329: if ($outputtarget eq 'tex') {
330: $discussion.='<tex>{\tiny \vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
331: '\textbf{DISCUSSIONS}\makebox[2 cm][b]{\hrulefill}'.
332: '\vskip 0 mm\noindent\textbf{'.$lt{'cuse'}.'}:\vskip 0 mm'.
333: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
334: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}}</tex>';
335: } elsif ($outputtarget eq 'export') {
336: # Create temporary directory if this is an export
337: my $now = time;
338: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
339: $tempexport = $$imsextras{'tempexport'};
340: if (!-e $tempexport) {
341: mkdir($tempexport,0700);
342: }
343: $tempexport .= '/'.$$imsextras{'count'};
344: if (!-e $tempexport) {
345: mkdir($tempexport,0700);
346: }
347: } else {
348: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
349: if (!-e $tempexport) {
350: mkdir($tempexport,0700);
351: }
352: $tempexport .= '/'.$now;
353: if (!-e $tempexport) {
354: mkdir($tempexport,0700);
355: }
356: $tempexport .= '/'.$env{'user.domain'}.'_'.$env{'user.name'};
357: }
358: if (!-e $tempexport) {
359: mkdir($tempexport,0700);
360: }
361: # open manifest file
362: my $manifest = '/imsmanifest.xml';
363: my $manifestfilename = $tempexport.$manifest;
364: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
365: $manifestok=1;
366: print $manifestfile qq|
367: <?xml version="1.0" encoding="UTF-8"?>
368: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
369: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
370: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
371: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
372: <organizations default="$ressymb">
373: <organization identifier="$ressymb">
374: <title>Discussion for $ressymb</title>\n|;
375: } else {
376: $discussion .= 'An error occurred opening the manifest file.<br />';
377: }
378: } else {
379: my $colspan=$maxdepth+1;
380: $discussion.= qq|
381: <script>
382: function studentdelete (symb,idx,newflag,previous) {
383: var symbparm = symb+':::'+idx
384: var prevparm = ""
385: if (newflag == 1) {
386: prevparm = "&previous="+previous
387: }
388: 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")) {
389: document.location.href = "/adm/feedback?hide="+symbparm+prevparm
390: }
391: }
392: </script>
393: |;
394: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" ><table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
395: $discussion .='<tr><td bgcolor="#DDDDBB" colspan="'.$colspan.'">'.
396: '<table border="0" width="100%" bgcolor="#DDDDBB"><tr>';
397: my $escsymb=&Apache::lonnet::escape($ressymb);
398: if ($visible>2) {
399: $discussion.='<td align="left">'.
400: '<a href="/adm/feedback?cmd=threadedon&symb='.$escsymb;
401: if ($newpostsflag) {
402: $discussion .= '&previous='.$prevread;
403: }
404: $discussion .='">'.&mt('Threaded View').'</a> '.
405: '<a href="/adm/feedback?cmd=threadedoff&symb='.$escsymb;
406: if ($newpostsflag) {
407: $discussion .= '&previous='.$prevread;
408: }
409: $discussion .='">'.&mt('Chronological View').'</a>
410: <a href= "/adm/feedback?cmd=sortfilter&symb='.$escsymb;
411: if ($newpostsflag) {
412: $discussion .= '&previous='.$prevread;
413: }
414: $discussion .='">'.&mt('Sorting/Filtering options').'</a>  ';
415: } else {
416: $discussion .= '<td align="left">';
417: }
418: $discussion .='<a href= "/adm/feedback?export='.$escsymb;
419: if ($newpostsflag) {
420: $discussion .= '&previous='.$prevread;
421: }
422: $discussion .= '">'.&mt('Export').'?</a> </td>';
423: if ($newpostsflag) {
424: if (!$markondisp) {
425: $discussion .='<td align="right"><a href="/adm/preferences?action=changediscussions">'.
426: &mt('Preferences on what is marked as NEW').
427: '</a><br /><a href="/adm/feedback?markread=1&symb='.$escsymb.'">'.&mt('Mark NEW posts no longer new').'</a>';
428: } else {
429: $discussion .= '<td> </td>';
430: }
431: } else {
432: $discussion .= '<td> </td>';
433: }
434: $discussion .= '</tr></table></td></tr>';
435:
436: my $numhidden = keys %notshown;
437: if ($numhidden > 0) {
438: my $colspan = $maxdepth+1;
439: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
440: '<a href="/adm/feedback?allposts=1&symb='.$escsymb;
441: if ($newpostsflag) {
442: $discussion .= '&previous='.$prevread;
443: }
444: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
445: $numhidden.' ';
446: if ($showunmark) {
447: $discussion .= &mt('posts previously marked read');
448: } else {
449: $discussion .= &mt('previously viewed posts');
450: }
451: $discussion .= '<br/></td></tr>';
452: }
453: }
454:
455: # Choose sort mechanism
456: my @showposts = ();
457: if ($sortposts eq 'descdate') {
458: @showposts = (sort { $b <=> $a } keys %alldiscussion);
459: } elsif ($sortposts eq 'thread') {
460: @showposts = (sort { $a <=> $b } keys %alldiscussion);
461: } elsif ($sortposts eq 'subject') {
462: foreach (sort keys %subjectsort) {
463: push @showposts, @{$subjectsort{$_}};
464: }
465: } elsif ($sortposts eq 'username') {
466: foreach my $domain (sort keys %usernamesort) {
467: foreach (sort keys %{$usernamesort{$domain}}) {
468: push @showposts, @{$usernamesort{$domain}{$_}};
469: }
470: }
471: } elsif ($sortposts eq 'lastfirst') {
472: foreach my $last (sort keys %namesort) {
473: foreach (sort keys %{$namesort{$last}}) {
474: push @showposts, @{$namesort{$last}{$_}};
475: }
476: }
477: } else {
478: @showposts = (sort { $a <=> $b } keys %alldiscussion);
479: }
480: my $currdepth = 0;
481: my $firstidx = $alldiscussion{$showposts[0]};
482: foreach (@showposts) {
483: unless (($sortposts eq 'thread') || (($sortposts eq '') && ($env{'environment.threadeddiscussion'})) || ($outputtarget eq 'export')) {
484: $alldiscussion{$_} = $_;
485: }
486: unless ( ($notshown{$alldiscussion{$_}} eq '1') || ($shown{$alldiscussion{$_}} == 0) ) {
487: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
488: $discussion.="\n<tr>";
489: }
490: my $thisdepth=$depth[$alldiscussion{$_}];
491: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
492: for (1..$thisdepth) {
493: $discussion.='<td> </td>';
494: }
495: }
496: my $colspan=$maxdepth-$thisdepth+1;
497: if ($outputtarget eq 'tex') {
498: #cleanup block
499: $discussionitems[$alldiscussion{$_}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
500: $discussionitems[$alldiscussion{$_}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
501: my $threadinsert='';
502: if ($thisdepth > 0) {
503: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
504: }
505: $discussionitems[$alldiscussion{$_}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
506: $discussionitems[$alldiscussion{$_}]=~s/<a([^>]+)>(Edit|Hide|Delete|Reply|Submissions)<\/a>//g;
507: $discussionitems[$alldiscussion{$_}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
508:
509: $discussionitems[$alldiscussion{$_}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$_}];
510: $discussion.=$discussionitems[$alldiscussion{$_}];
511: } elsif ($outputtarget eq 'export') {
512: my $postfilename = $alldiscussion{$_}.'-'.$imsitems{$alldiscussion{$_}}{'timestamp'}.'.html';
513: if ($manifestok) {
514: if (($depth[$alldiscussion{$_}] <= $currdepth) && ($alldiscussion{$_} != $firstidx)) {
515: print $manifestfile ' </item>'."\n";
516: }
517: $currdepth = $depth[$alldiscussion{$_}];
518: print $manifestfile "\n".
519: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$_}.'" isvisible="'.
520: $imsitems{$alldiscussion{$_}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$_}.'">'.
521: '<title>'.$imsitems{$alldiscussion{$_}}{'title'}.'</title>';
522: $imsresources .= "\n".
523: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$_}.'" type="webcontent" href="'.$postfilename.'">'."\n".
524: '<file href="'.$postfilename.'">'."\n".
525: $imsfiles{$alldiscussion{$_}}{$imsitems{$alldiscussion{$_}}{'currversion'}}."\n".
526: '</resource>';
527: }
528: my $postingfile;
529: my $postingfilename = $tempexport.'/'.$postfilename;
530: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
531: print $postingfile '<html><head><title>Discussion Post</title></head><body>'.
532: $imsitems{$alldiscussion{$_}}{'title'}.' '.
533: $imsitems{$alldiscussion{$_}}{'sender'}.
534: $imsitems{$alldiscussion{$_}}{'timestamp'}.'<br /><br />'.
535: $imsitems{$alldiscussion{$_}}{'message'}.'<br />'.
536: $imsitems{$alldiscussion{$_}}{'attach'}.'</body></html>'."\n";
537: close($postingfile);
538: } else {
539: $discussion .= 'An error occurred opening the export file for posting '.$alldiscussion{$_}.'<br />';
540: }
541: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$_}}{'allattachments'},$tempexport);
542: } else {
543: $discussion.='<td bgcolor="'.$bgcols[$newitem{$alldiscussion{$_}}].
544: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$_}].
545: '</td></tr>';
546: }
547: }
548: }
549: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
550: my $colspan=$maxdepth+1;
551: $discussion .= <<END;
552: <tr bgcolor="#FFFFFF">
553: <td colspan="$colspan" valign="top">
554: <table border="0" bgcolor="#FFFFFF" width="100%" cellspacing="2" cellpadding="2">
555: <tr>
556: <td align="left">
557: <table border="0" cellpadding="0" cellspacing="4">
558: <tr>
559: <td>
560: <font size="-1"><b>$lt{'cuse'}</b>:</td>
561: <td> </td>
562: <td><font size="-1">
563: END
564: if ($newpostsflag) {
565: $discussion .=
566: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
567: if ($dischash{$toggkey}) {
568: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
569: }
570: } else {
571: if ($dischash{$toggkey}) {
572: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
573: } else {
574: $discussion .=
575: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
576: }
577: }
578: $discussion .= <<END;
579: </font></td>
580: <td> </td>
581: <td align="left">
582: <font size="-1"><b><a href="$chglink">$lt{'chgt'}</a>?</font></b>
583: </td>
584: </tr>
585: </table>
586: </td>
587: END
588: if ($sortposts) {
589: my %sort_types = ();
590: my %role_types = ();
591: my %status_types = ();
592: &sort_filter_names(\%sort_types,\%role_types,\%status_types);
593:
594: $discussion .= '<td><font size="-1"><b>'.&mt('Sorted by').'</b>: '.$sort_types{$sortposts}.'<br />';
595: if (defined($env{'form.totposters'})) {
596: $discussion .= &mt('Posts by').':';
597: if ($totposters > 0) {
598: foreach my $poster (@posters) {
599: $poster =~ s/:/\@/;
600: $discussion .= ' '.$poster.',';
601: }
602: $discussion =~ s/,$//;
603: } else {
604: $discussion .= &mt('None selected');
605: }
606: } else {
607: my $filterchoice ='';
608: if (@sectionpick > 0) {
609: $filterchoice = '<i>'.&mt('sections').'</i>- '.$env{'form.sectionpick'};
610: $filterchoice .= ' ';
611: }
612: if (@rolefilter > 0) {
613: $filterchoice .= '<i>'.&mt('roles').'</i>-';
614: foreach (@rolefilter) {
615: $filterchoice .= ' '.$role_types{$_}.',';
616: }
617: $filterchoice =~ s/,$//;
618: $filterchoice .= '<br />     ';
619: }
620: if ($statusfilter) {
621: $filterchoice .= '<i>'.&mt('status').'</i>- '.$status_types{$statusfilter};
622: }
623: if ($filterchoice) {
624: $discussion .= '<b>'.&mt('Filters').'</b>: '.$filterchoice;
625: }
626: $discussion .= '</font></td>';
627: }
628: }
629: if ($dischash{$toggkey}) {
630: my $storebutton = &mt('Store read/unread changes');
631: $discussion.='<td align="right">'.
632: '<input type="hidden" name="discsymb" value="'.$ressymb.'">'."\n".
633: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
634: ' onClick="this.form.submit();">'."\n".
635: '</td>';
636: }
637: $discussion .= (<<END);
638: </tr>
639: </table>
640: </td>
641: </tr>
642: </table>
643: <br /><br /></form>
644: END
645: }
646: if ($outputtarget eq 'export') {
647: if ($manifestok) {
648: while ($currdepth > 0) {
649: print $manifestfile " </item>\n";
650: $currdepth --;
651: }
652: print $manifestfile qq|
653: </organization>
654: </organizations>
655: <resources>
656: $imsresources
657: </resources>
658: </manifest>
659: |;
660: close($manifestfile);
661: if ((defined($imsextras)) && ($$imsextras{'caller'} eq 'imsexport')) {
662: $discussion = $copyresult;
663: } else {
664:
665: #Create zip file in prtspool
666:
667: my $imszipfile = '/prtspool/'.
668: $env{'user.name'}.'_'.$env{'user.domain'}.'_'.
669: time.'_'.rand(1000000000).'.zip';
670: my $cwd = &getcwd();
671: my $imszip = '/home/httpd/'.$imszipfile;
672: chdir $tempexport;
673: open(OUTPUT, "zip -r $imszip * 2> /dev/null |");
674: close(OUTPUT);
675: chdir $cwd;
676: $discussion .= 'Download the zip file from <a href="'.$imszipfile.'">Discussion Posting Archive</a><br />';
677: if ($copyresult) {
678: $discussion .= 'The following errors occurred during export - <br />'.$copyresult;
679: }
680: }
681: } else {
682: $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 />';
683: }
684: return $discussion;
685: }
686: }
687: if ($discussiononly) {
688: my $now = time;
689: my $attachnum = 0;
690: my $newattachmsg = '';
691: my @currnewattach = ();
692: my @currdelold = ();
693: my $comment = '';
694: my $subject = '';
695: if ($env{'form.origpage'}) {
696: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
697: $subject = &Apache::lonnet::unescape($env{'form.subject'});
698: $comment = &Apache::lonnet::unescape($env{'form.comment'});
699: my @keepold = ();
700: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
701: if (@currnewattach > 0) {
702: $attachnum += @currnewattach;
703: }
704: }
705: if (&discussion_open($status)) {
706: $discussion.=(<<ENDDISCUSS);
707: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
708: <input type="submit" name="discuss" value="Post Discussion" />
709: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
710: <input type="hidden" name="symb" value="$ressymb" />
711: <input type="hidden" name="sendit" value="true" />
712: <input type="hidden" name="timestamp" value="$now" />
713: <br /><a name="newpost"></a>
714: <font size="1">Note: in anonymous discussion, your name is visible only
715: to course faculty</font><br />
716: <b>Title:</b> <input type="text" name="subject" value="$subject" size="30" /><br /><br />
717: <textarea name="comment" cols="80" rows="14" wrap="hard">$comment</textarea>
718: ENDDISCUSS
719: if ($env{'form.origpage'}) {
720: $discussion.='<input type="hidden" name="origpage" value="'.$env{'form.origpage'}.'" />'."\n";
721: foreach (@currnewattach) {
722: $discussion.='<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n";
723: }
724: }
725: $discussion.="</form>\n";
726: if ($outputtarget ne 'tex') {
727: $discussion.=&generate_attachments_button('',$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,'',$mode);
728: if (@currnewattach > 0) {
729: $newattachmsg .= '<b>New attachments</b><br />';
730: if (@currnewattach > 1) {
731: $newattachmsg .= '<ol>';
732: foreach my $item (@currnewattach) {
733: $item =~ m#.*/([^/]+)$#;
734: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
735: }
736: $newattachmsg .= '</ol>'."\n";
737: } else {
738: $currnewattach[0] =~ m#.*/([^/]+)$#;
739: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
740: }
741: }
742: $discussion.=$newattachmsg;
743: $discussion.=&generate_preview_button();
744: }
745: }
746: } else {
747: $discussion.='<table bgcolor="#BBBBBB"><tr><td>';
748: if (&discussion_open($status) &&
749: &Apache::lonnet::allowed('pch',
750: $env{'request.course.id'}.
751: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
752: if ($outputtarget ne 'tex') {
753: $discussion.='<a href="/adm/feedback?replydisc='.
754: &Apache::lonnet::escape($ressymb).':::" '.$target.'>'.
755: '<img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" border="0" />'.
756: &mt('Post Discussion').'</a><br />';
757: }
758: }
759: $discussion.='<a href="/adm/feedback?sendmessageonly=1&symb='.
760: &Apache::lonnet::escape($ressymb).
761: '"><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/feedback.gif').'" border="0" />'.
762: &mt('Send Message').'</td></tr></table>';
763: }
764: return $discussion;
765: }
766:
767: sub build_posting_display {
768: 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) = @_;
769: my @original=();
770: my @index=();
771: my $symb=&Apache::lonenc::check_decrypt($ressymb);
772: my $escsymb=&Apache::lonnet::escape($ressymb);
773: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
774: $env{'course.'.$env{'request.course.id'}.'.domain'},
775: $env{'course.'.$env{'request.course.id'}.'.num'});
776:
777: if ($contrib{'version'}) {
778: my $oldest = $contrib{'1:timestamp'};
779: if ($prevread eq '0') {
780: $prevread = $oldest-1;
781: }
782: my ($skiptest,$rolematch,$roleregexp,$secregexp,$statusregexp);
783: if ($sortposts) {
784: ($skiptest,$roleregexp,$secregexp,$statusregexp) = &filter_regexp($rolefilter,$sectionpick,$statusfilter);
785: $rolematch = $roleregexp.':'.$secregexp.':'.$statusregexp;
786: }
787: for (my $id=1;$id<=$contrib{'version'};$id++) {
788: my $idx=$id;
789: my $posttime = $contrib{$idx.':timestamp'};
790: if ($prevread <= $posttime) {
791: $$newpostsflag = 1;
792: }
793: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
794: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
795: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
796: my $origindex='0.';
797: my $numoldver=0;
798: if ($contrib{$idx.':replyto'}) {
799: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
800: # this is a follow-up message
801: $original[$idx]=$original[$contrib{$idx.':replyto'}];
802: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
803: $origindex=$index[$contrib{$idx.':replyto'}];
804: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
805: } else {
806: $original[$idx]=0;
807: $$depth[$idx]=0;
808: }
809: } else {
810: # this is an original message
811: $original[$idx]=0;
812: $$depth[$idx]=0;
813: }
814: if ($$replies[$$depth[$idx]]) {
815: $$replies[$$depth[$idx]]++;
816: } else {
817: $$replies[$$depth[$idx]]=1;
818: }
819: unless ((($hidden) && (!$seeid)) || ($deleted)) {
820: $$visible++;
821: if ($contrib{$idx.':history'}) {
822: if ($contrib{$idx.':history'} =~ /:/) {
823: my @oldversions = split/:/,$contrib{$idx.':history'};
824: $numoldver = @oldversions;
825: } else {
826: $numoldver = 1;
827: }
828: }
829: $$current = $numoldver;
830: my %messages = ();
831: my %subjects = ();
832: my %attachtxt = ();
833: my %allattachments = ();
834: my ($screenname,$plainname);
835: my $sender = &mt('Anonymous');
836: # Anonymous users getting number within a discussion
837: # Since idx is in static order, this should give the same sequence every time.
838: my $key=$contrib{$idx.':sendername'}.'@'.$contrib{$idx.':senderdomain'};
839: unless ($$anonhash{$key}) {
840: $anoncnt++;
841: $$anonhash{$key}=&mt('Anonymous').' '.$anoncnt;
842: }
843: my ($message,$subject,$vgrlink,$ctlink);
844: &get_post_contents(\%contrib,$idx,$seeid,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,$numoldver);
845:
846:
847: # Set up for sorting by subject
848: unless ($outputtarget eq 'export') {
849: $message=$messages{$numoldver};
850: $message.=$attachtxt{$numoldver};
851: $subject=$subjects{$numoldver};
852: if ($message) {
853: if ($hidden) {
854: $message='<font color="#888888">'.$message.'</font>';
855: if ($studenthidden) {
856: $message .='<br /><br />Deleted by poster (student).';
857: }
858: }
859:
860: if ($subject eq '') {
861: if (defined($$subjectsort{'__No subject'})) {
862: push @{$$subjectsort{'__No subject'}}, $idx;
863: } else {
864: @{$$subjectsort{'__No subject'}} = ("$idx");
865: }
866: } else {
867: if (defined($$subjectsort{$subject})) {
868: push @{$$subjectsort{$subject}}, $idx;
869: } else {
870: @{$$subjectsort{$subject}} = ("$idx");
871: }
872: }
873: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
874: $sender=&Apache::loncommon::aboutmewrapper(
875: $plainname,
876: $contrib{$idx.':sendername'},
877: $contrib{$idx.':senderdomain'}).' ('.
878: $contrib{$idx.':sendername'}.' at '.
879: $contrib{$idx.':senderdomain'}.')';
880: if ($contrib{$idx.':anonymous'}) {
881: $sender.=' <font color="red"><b>['.$$anonhash{$key}.']</b></font> '.
882: $screenname;
883: }
884:
885: # Set up for sorting by domain, then username
886: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
887: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
888: }
889: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
890: push @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx;
891: } else {
892: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
893: }
894: # Set up for sorting by last name, then first name
895: my %names = &Apache::lonnet::get('environment',
896: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
897: ,$contrib{$idx.':sendername'});
898: my $lastname = $names{'lastname'};
899: my $firstname = $names{'firstname'};
900: if ($lastname eq '') {
901: $lastname = '_';
902: }
903: if ($firstname eq '') {
904: $firstname = '_';
905: }
906: unless (defined($$namesort{$lastname})) {
907: %{$$namesort{$lastname}} = ();
908: }
909: if (defined($$namesort{$lastname}{$firstname})) {
910: push @{$$namesort{$lastname}{$firstname}}, $idx;
911: } else {
912: @{$$namesort{$lastname}{$firstname}} = ("$idx");
913: }
914: if (&editing_allowed()) {
915: if (($env{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($env{'user.name'} eq $contrib{$idx.':sendername'})) {
916: $sender.=' <a href="/adm/feedback?editdisc='.
917: $escsymb.':::'.$idx;
918: if ($$newpostsflag) {
919: $sender .= '&previous='.$prevread;
920: }
921: $sender .= '" '.$target.'>'.&mt('Edit').'</a>';
922: unless ($seeid) {
923: $sender.=" <a href=\"javascript:studentdelete('$escsymb','$idx','$$newpostsflag','$prevread')";
924: $sender .= '">'.&mt('Delete').'</a>';
925: }
926: }
927: }
928: if ($seeid) {
929: if ($hidden) {
930: unless ($studenthidden) {
931: $sender.=' <a href="/adm/feedback?unhide='.
932: $escsymb.':::'.$idx;
933: if ($$newpostsflag) {
934: $sender .= '&previous='.$prevread;
935: }
936: $sender .= '">'.&mt('Make Visible').'</a>';
937: }
938: } else {
939: $sender.=' <a href="/adm/feedback?hide='.
940: $escsymb.':::'.$idx;
941: if ($$newpostsflag) {
942: $sender .= '&previous='.$prevread;
943: }
944: $sender .= '">'.&mt('Hide').'</a>';
945: }
946: $sender.=' <a href="/adm/feedback?deldisc='.
947: $escsymb.':::'.$idx;
948: if ($$newpostsflag) {
949: $sender .= '&previous='.$prevread;
950: }
951: $sender .= '">'.&mt('Delete').'</a>';
952: }
953: } else {
954: if ($screenname) {
955: $sender='<i>'.$screenname.'</i>';
956: } else {
957: $sender='<i>'.$$anonhash{$key}.'</i>';
958: }
959: # Set up for sorting by domain, then username for anonymous
960: unless (defined($$usernamesort{'__anon'})) {
961: %{$$usernamesort{'__anon'}} = ();
962: }
963: if (defined($$usernamesort{'__anon'}{'__anon'})) {
964: push @{$$usernamesort{'__anon'}{'__anon'}}, $idx;
965: } else {
966: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
967: }
968: # Set up for sorting by last name, then first name for anonymous
969: unless (defined($$namesort{'__anon'})) {
970: %{$$namesort{'__anon'}} = ();
971: }
972: if (defined($$namesort{'__anon'}{'__anon'})) {
973: push @{$$namesort{'__anon'}{'__anon'}}, $idx;
974: } else {
975: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
976: }
977: }
978: if (&discussion_open($status) &&
979: &Apache::lonnet::allowed('pch',
980: $env{'request.course.id'}.
981: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
982: $sender.=' <a href="/adm/feedback?replydisc='.
983: $escsymb.':::'.$idx;
984: if ($$newpostsflag) {
985: $sender .= '&previous='.$prevread;
986: }
987: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
988: }
989: if ($viewgrades) {
990: $vgrlink=&Apache::loncommon::submlink('Submissions',
991: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
992: }
993: if ($$dischash{$readkey}=~/\.$idx\./) {
994: $ctlink = '<label><b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" /></label>';
995: } else {
996: $ctlink = '<label><b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" /></label>';
997: }
998: }
999: #figure out at what position this needs to print
1000: }
1001: if ($outputtarget eq 'export' || $message) {
1002: my $thisindex=$idx;
1003: if ( (($env{'environment.threadeddiscussion'}) && ($sortposts eq '')) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
1004: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
1005: }
1006: $$alldiscussion{$thisindex}=$idx;
1007: $$shown{$idx} = 0;
1008: $index[$idx]=$thisindex;
1009: }
1010: if ($outputtarget eq 'export') {
1011: %{$$imsitems{$idx}} = ();
1012: $$imsitems{$idx}{'isvisible'}='true';
1013: if ($hidden) {
1014: $$imsitems{$idx}{'isvisible'}='false';
1015: }
1016: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
1017: $$imsitems{$idx}{'message'}=$messages{$numoldver};
1018: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
1019: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
1020: $$imsitems{$idx}{'sender'}=$plainname.' ('.
1021: $contrib{$idx.':sendername'}.' at '.
1022: $contrib{$idx.':senderdomain'}.')';
1023: $$imsitems{$idx}{'isanonymous'}='false';
1024: if ($contrib{$idx.':anonymous'}) {
1025: $$imsitems{$idx}{'isanonymous'}='true';
1026: }
1027: $$imsitems{$idx}{'currversion'}=$numoldver;
1028: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
1029: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
1030: $$shown{$idx} = 1;
1031: }
1032: } else {
1033: if ($message) {
1034: my $spansize = 2;
1035: if ($showonlyunread && $prevread > $posttime) {
1036: $$notshown{$idx} = 1;
1037: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
1038: $$notshown{$idx} = 1;
1039: } else {
1040: # apply filters
1041: my $uname = $contrib{$idx.':sendername'};
1042: my $udom = $contrib{$idx.':senderdomain'};
1043: my $poster = $uname.':'.$udom;
1044: if (defined($env{'form.totposters'})) {
1045: if ($totposters == 0) {
1046: $$shown{$idx} = 0;
1047: } elsif ($totposters > 0) {
1048: if (grep/^$poster$/,@{$posters}) {
1049: $$shown{$idx} = 1;
1050: }
1051: }
1052: } elsif ($sortposts) {
1053: if ($skiptest) {
1054: $$shown{$idx} = 1;
1055: } else {
1056: foreach my $role (@{$$roleinfo{$poster}}) {
1057: if ($role =~ /^cc:/) {
1058: my $cc_regexp = $roleregexp.':[^:]*:'.$statusregexp;
1059: if ($role =~ /$cc_regexp/) {
1060: $$shown{$idx} = 1;
1061: last;
1062: }
1063: } elsif ($role =~ /^$rolematch$/) {
1064: $$shown{$idx} = 1;
1065: last;
1066: }
1067: }
1068: }
1069: } else {
1070: $$shown{$idx} = 1;
1071: }
1072: }
1073: unless ($$notshown{$idx} == 1) {
1074: if ($prevread > 0 && $prevread <= $posttime) {
1075: $$newitem{$idx} = 1;
1076: $$discussionitems[$idx] .= '
1077: <p><table border="0" width="100%">
1078: <tr><td align="left"><font color="#FF0000"><b>NEW</b></font></td>';
1079: } else {
1080: $$newitem{$idx} = 0;
1081: $$discussionitems[$idx] .= '
1082: <p><table border="0" width="100%">
1083: <tr><td align="left"> </td>';
1084: }
1085: $$discussionitems[$idx] .= '<td align ="left"> '.
1086: '<b>'.$subject.'</b> '.
1087: $sender.'</b> '.$vgrlink.' ('.
1088: &Apache::lonlocal::locallocaltime($posttime).')</td>';
1089: if ($$dischash{$toggkey}) {
1090: $$discussionitems[$idx].='<td align="right"> '.
1091: $ctlink.'</td>';
1092: }
1093: $$discussionitems[$idx].= '</tr></table><blockquote>'.
1094: $message.'</blockquote></p>';
1095: if ($contrib{$idx.':history'}) {
1096: my @postversions = ();
1097: $$discussionitems[$idx] .= &mt('This post has been edited by the author.');
1098: if ($seeid) {
1099: $$discussionitems[$idx] .= ' <a href="/adm/feedback?allversions='.$escsymb.':::'.$idx.'">'.&mt('Display all versions').'</a>';
1100: }
1101: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1102: if ($contrib{$idx.':history'} =~ m/:/) {
1103: @postversions = split/:/,$contrib{$idx.':history'};
1104: } else {
1105: @postversions = ("$contrib{$idx.':history'}");
1106: }
1107: for (my $i=0; $i<@postversions; $i++) {
1108: my $version = $i+1;
1109: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1110: }
1111: }
1112: }
1113: }
1114: }
1115: }
1116: }
1117: }
1118: }
1119:
1120: sub filter_regexp {
1121: my ($rolefilter,$sectionpick,$statusfilter) = @_;
1122: my ($roleregexp,$secregexp,$statusregexp);
1123: my $skiptest = 1;
1124: if (@{$rolefilter} > 0) {
1125: my @okrolefilter = ();
1126: foreach (@{$rolefilter}) {
1127: unless ($_ eq '') {
1128: push @okrolefilter, $_;
1129: }
1130: }
1131: if (@okrolefilter > 0) {
1132: if (grep/^all$/,@okrolefilter) {
1133: $roleregexp='[^:]+';
1134: } else {
1135: if (@okrolefilter == 1) {
1136: $roleregexp=$okrolefilter[0];
1137: } else {
1138: $roleregexp='('.join('|',@okrolefilter).')';
1139: }
1140: $skiptest = 0;
1141: }
1142: }
1143: }
1144: if (@{$sectionpick} > 0) {
1145: my @oksectionpick = ();
1146: foreach (@{$sectionpick}) {
1147: unless ($_ eq '') {
1148: push @oksectionpick, $_;
1149: }
1150: }
1151: if ((@oksectionpick > 0) && (!grep/^all$/,@oksectionpick)) {
1152: if (@oksectionpick == 1) {
1153: $secregexp = $oksectionpick[0];
1154: } else {
1155: $secregexp .= '('.join('|',@oksectionpick).')';
1156: }
1157: $skiptest = 0;
1158: } else {
1159: $secregexp .= '[^:]*';
1160: }
1161: }
1162: if (defined($statusfilter) && $statusfilter ne '') {
1163: if ($statusfilter eq 'all') {
1164: $statusregexp = '[^:]+';
1165: } else {
1166: $statusregexp = $statusfilter;
1167: $skiptest = 0;
1168: }
1169: }
1170: return ($skiptest,$roleregexp,$secregexp,$statusregexp);
1171: }
1172:
1173:
1174: sub get_post_contents {
1175: my ($contrib,$idx,$seeid,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$numver) = @_;
1176: my $discussion = '';
1177: my $start=$numver;
1178: my $end=$numver + 1;
1179: %{$$imsfiles{$idx}}=();
1180: if ($type eq 'allversions') {
1181: unless($seeid) {
1182: $discussion=&mt('You do not have privileges to view all versions of posts.').&mt('Please select a different role');
1183: return $discussion;
1184: }
1185: }
1186: # $$screenname=&Apache::loncommon::screenname(
1187: # $$contrib{$idx.':sendername'},
1188: # $$contrib{$idx.':senderdomain'});
1189: $$plainname=&Apache::loncommon::nickname(
1190: $$contrib{$idx.':sendername'},
1191: $$contrib{$idx.':senderdomain'});
1192: $$screenname=$$contrib{$idx.':screenname'};
1193:
1194: my $sender=&Apache::loncommon::aboutmewrapper(
1195: $$plainname,
1196: $$contrib{$idx.':sendername'},
1197: $$contrib{$idx.':senderdomain'}).' ('.
1198: $$contrib{$idx.':sendername'}.' at '.
1199: $$contrib{$idx.':senderdomain'}.')';
1200: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1201: my @postversions = ();
1202: if ($type eq 'allversions' || $type eq 'export') {
1203: $start = 0;
1204: if ($$contrib{$idx.':history'}) {
1205: @postversions = split(/:/,$$contrib{$idx.':history'});
1206: }
1207: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1208: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1209: push @postversions,$$contrib{$idx.':timestamp'};
1210: $end = @postversions;
1211: } else {
1212: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1213: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1214: }
1215:
1216: if ($$contrib{$idx.':anonymous'}) {
1217: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1218: }
1219: if ($type eq 'allversions') {
1220: $discussion=('<b>'.$sender.'</b><br /><ul>');
1221: }
1222: for (my $i=$start; $i<$end; $i++) {
1223: my ($timesent,$attachmsg);
1224: my %currattach = ();
1225: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1226: &newline_to_br(\$messages->{$i});
1227: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1228: $$subjects{$i}=~s/\n/\<br \/\>/g;
1229: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1230: if ($attachmenturls) {
1231: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1232: }
1233: if ($type eq 'export') {
1234: $$imsfiles{$idx}{$i} = '';
1235: if ($attachmsg) {
1236: $$attachtxt{$i} = '<br />Attachments:<br />';
1237: foreach (sort keys %currattach) {
1238: if ($$allattachments{$_}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1239: my $fname = $1.$3.'/'.$4;
1240: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'">'."\n";
1241: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1242: }
1243: }
1244: }
1245: } else {
1246: if ($attachmsg) {
1247: $$attachtxt{$i} = '<br />Attachments:'.$attachmsg.'<br />';
1248: } else {
1249: $$attachtxt{$i} = '';
1250: }
1251: }
1252: if ($type eq 'allversions') {
1253: $discussion.= <<"END";
1254: <li><b>$$subjects{$i}</b>, $timesent<br />
1255: $$messages{$i}<br />
1256: $$attachtxt{$i}</li>
1257: END
1258: }
1259: }
1260: if ($type eq 'allversions') {
1261: $discussion.='</ul>';
1262: return $discussion;
1263: } else {
1264: return;
1265: }
1266: }
1267:
1268: sub replicate_attachments {
1269: my ($attachrefs,$tempexport) = @_;
1270: my $response;
1271: foreach my $id (keys %{$attachrefs}) {
1272: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1273: my $path = $tempexport;
1274: my $tail = $1.'/'.$2.$4;
1275: my @extras = split/\//,$tail;
1276: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1277: if (!-e $destination) {
1278: my $i= 0;
1279: while ($i<@extras) {
1280: $path .= '/'.$extras[$i];
1281: if (!-e $path) {
1282: mkdir($path,0700);
1283: }
1284: $i ++;
1285: }
1286: my ($content,$rtncode);
1287: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1288: if ($uploadreply eq 'ok') {
1289: my $attachcopy;
1290: if ($attachcopy = Apache::File->new('>'.$destination)) {
1291: print $attachcopy $content;
1292: close($attachcopy);
1293: } else {
1294: $response .= 'Error copying file attachment - '.$5.' to IMS package: '.$!.'<br />'."\n";
1295: }
1296: } else {
1297: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1298: $response .= 'Error copying file attachment - '.$5.' to IMS package: '.$rtncode.'<br />'."\n";
1299: }
1300: }
1301: }
1302: }
1303: return $response;
1304: }
1305:
1306: sub mail_screen {
1307: my ($r,$feedurl,$options) = @_;
1308: if (exists($env{'form.origpage'})) {
1309: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss','blog']);
1310: }
1311:
1312: my $title=&Apache::lonnet::gettitle($feedurl);
1313: if (!$title) { $title = $feedurl; }
1314: my $quote='';
1315: my $subject = '';
1316: my $comment = '';
1317: my $prevtag = '';
1318: my $parentmsg = '';
1319: my ($symb,$idx,$attachmenturls);
1320: my $numoldver = 0;
1321: my $attachmsg = '';
1322: my $newattachmsg = '';
1323: my @currnewattach = ();
1324: my @currdelold = ();
1325: my @keepold = ();
1326: my %attachments = ();
1327: my %currattach = ();
1328: my $attachnum = 0;
1329: my $anonchk = (<<END);
1330: function anonchk() {
1331: if (document.mailform.anondiscuss.checked == true) {
1332: document.attachment.anondiscuss.value = '1'
1333: }
1334: if (document.mailform.discuss.checked == true) {
1335: document.attachment.discuss.value = '1'
1336: }
1337: return
1338: }
1339: END
1340: my $anonscript;
1341: if (exists($env{'form.origpage'})) {
1342: $anonscript = (<<END);
1343: function setposttype() {
1344: var anondisc = $env{'form.anondiscuss'};
1345: var disc = $env{'form.discuss'};
1346: if (anondisc == 1) {
1347: document.mailform.anondiscuss.checked = true
1348: }
1349: if (disc == 1) {
1350: document.mailform.discuss.checked = true
1351: }
1352: return
1353: }
1354: END
1355: } else {
1356: $anonscript = (<<END);
1357: function setposttype() {
1358: return
1359: }
1360: END
1361: }
1362: if (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
1363: if ($env{'form.replydisc'}) {
1364: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
1365: } else {
1366: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
1367: }
1368: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1369: $env{'course.'.$env{'request.course.id'}.'.domain'},
1370: $env{'course.'.$env{'request.course.id'}.'.num'});
1371: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1372: if ($contrib{$idx.':history'}) {
1373: if ($contrib{$idx.':history'} =~ /:/) {
1374: my @oldversions = split/:/,$contrib{$idx.':history'};
1375: $numoldver = @oldversions;
1376: } else {
1377: $numoldver = 1;
1378: }
1379: }
1380: if ($env{'form.replydisc'}) {
1381: if ($contrib{$idx.':history'}) {
1382: if ($contrib{$idx.':history'} =~ /:/) {
1383: my @oldversions = split/:/,$contrib{$idx.':history'};
1384: $numoldver = @oldversions;
1385: } else {
1386: $numoldver = 1;
1387: }
1388: }
1389: my $message;
1390: if ($idx > 0) {
1391: my %msgversions = ();
1392: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1393: $message = $msgversions{$numoldver};
1394: }
1395: &newline_to_br(\$message);
1396: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
1397: if ($idx > 0) {
1398: my %subversions = ();
1399: &get_post_versions(\%subversions,$contrib{$idx.':subject'},1,$numoldver);
1400: $subject = 'Re: '.$subversions{$numoldver};
1401: }
1402: $subject = &HTML::Entities::encode($subject,'<>&"');
1403: } else {
1404: $attachmenturls = $contrib{$idx.':attachmenturl'};
1405: if ($idx > 0) {
1406: my %msgversions = ();
1407: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1408: $comment = $msgversions{$numoldver};
1409: my %subversions = ();
1410: &get_post_versions(\%subversions,$contrib{$idx.':subject'},0,$numoldver);
1411: $subject = $subversions{$numoldver};
1412: }
1413: if (defined($contrib{$idx.':replyto'})) {
1414: $parentmsg = $contrib{$idx.':replyto'};
1415: }
1416: unless (exists($env{'form.origpage'})) {
1417: my $anonflag = 0;
1418: if ($contrib{$idx.':anonymous'}) {
1419: $anonflag = 1;
1420: }
1421: $anonscript = (<<END);
1422: function setposttype () {
1423: var currtype = $anonflag
1424: if (currtype == 1) {
1425: document.mailform.elements.discuss.checked = false
1426: document.mailform.elements.anondiscuss.checked = true
1427: }
1428: if (currtype == 0) {
1429: document.mailform.elements.anondiscuss.checked = false
1430: document.mailform.elements.discuss.checked = true
1431: }
1432: return
1433: }
1434: END
1435: }
1436: }
1437: }
1438: if ($env{'form.previous'}) {
1439: $prevtag = '<input type="hidden" name="previous" value="'.$env{'form.previous'}.'" />';
1440: }
1441: }
1442:
1443: if ($env{'form.origpage'}) {
1444: $subject = &Apache::lonnet::unescape($env{'form.subject'});
1445: $comment = &Apache::lonnet::unescape($env{'form.comment'});
1446: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1447: }
1448: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet();
1449: my $send=&mt('Send');
1450: my $js= <<END;
1451: <script type="text/javascript">
1452: //<!--
1453: function gosubmit() {
1454: var rec=0;
1455: if (typeof(document.mailform.elements.author)!="undefined") {
1456: if (document.mailform.elements.author.checked) {
1457: rec=1;
1458: }
1459: }
1460: if (typeof(document.mailform.elements.question)!="undefined") {
1461: if (document.mailform.elements.question.checked) {
1462: rec=1;
1463: }
1464: }
1465: if (typeof(document.mailform.elements.course)!="undefined") {
1466: if (document.mailform.elements.course.checked) {
1467: rec=1;
1468: }
1469: }
1470: if (typeof(document.mailform.elements.policy)!="undefined") {
1471: if (document.mailform.elements.policy.checked) {
1472: rec=1;
1473: }
1474: }
1475: if (typeof(document.mailform.elements.discuss)!="undefined") {
1476: if (document.mailform.elements.discuss.checked) {
1477: rec=1;
1478: }
1479: }
1480: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
1481: if (document.mailform.elements.anondiscuss.checked) {
1482: rec=1;
1483: }
1484: }
1485: if (typeof(document.mailform.elements.blog)!="undefined") {
1486: if (document.mailform.elements.blog.checked) {
1487: rec=1;
1488: }
1489: }
1490:
1491: if (rec) {
1492: if (typeof(document.mailform.onsubmit)=='function') {
1493: document.mailform.onsubmit();
1494: }
1495: document.mailform.submit();
1496: } else {
1497: alert('Please check a feedback type.');
1498: }
1499: }
1500: $anonchk
1501: $anonscript
1502: //-->
1503: </script>
1504: END
1505:
1506: my %onload = ('onload' => 'window.focus();setposttype();');
1507: my $start_page=
1508: &Apache::loncommon::start_page('Resource Feedback and Discussion',$js,
1509: {'add_entries' => \%onload});
1510:
1511: $r->print(<<END);
1512: $start_page
1513: <h2><tt>$title</tt></h2>
1514: <form action="/adm/feedback" method="post" name="mailform"
1515: enctype="multipart/form-data">
1516: $prevtag
1517: <input type="hidden" name="postdata" value="$feedurl" />
1518: END
1519: if ($env{'form.replydisc'}) {
1520: $r->print(<<END);
1521: <input type="hidden" name="replydisc" value="$env{'form.replydisc'}" />
1522: END
1523: } elsif ($env{'form.editdisc'}) {
1524: $r->print(<<END);
1525: <input type="hidden" name="editdisc" value ="$env{'form.editdisc'}" />
1526: <input type="hidden" name="parentmsg" value ="$parentmsg" />
1527: END
1528: }
1529: $r->print(<<END);
1530: Please check at least one of the following feedback types:
1531: $options<hr />
1532: $quote
1533: <p>My question/comment/feedback:</p>
1534: <p>
1535: $latexHelp
1536: Title: <input type="text" name="subject" size="30" value="$subject" /></p>
1537: <p>
1538: <textarea name="comment" id="comment" cols="60" rows="10" wrap="hard">$comment
1539: </textarea></p>
1540: <p>
1541: END
1542: if ( ($env{'form.editdisc'}) || ($env{'form.replydisc'}) ) {
1543: if ($env{'form.origpage'}) {
1544: foreach (@currnewattach) {
1545: $r->print('<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n");
1546: }
1547: foreach (@currdelold) {
1548: $r->print('<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n");
1549: }
1550: }
1551: if ($env{'form.editdisc'}) {
1552: if ($attachmenturls) {
1553: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
1554: $attachnum = scalar(keys %currattach);
1555: foreach (keys %currattach) {
1556: $r->print('<input type="hidden" name="keepold" value="'.$_.'" />'."\n");
1557: }
1558: }
1559: }
1560: } else {
1561: $r->print(<<END);
1562: Attachment (128 KB max size): <input type="file" name="attachment" />
1563: </p>
1564: END
1565: }
1566: $r->print(<<END);
1567: <p>
1568: <input type="hidden" name="sendit" value="1" />
1569: <input type="button" value="$send" onClick='gosubmit();' />
1570: </p>
1571: </form>
1572: END
1573: if ($env{'form.editdisc'} || $env{'form.replydisc'}) {
1574: my $now = time;
1575: my $ressymb = $symb;
1576: my $postidx = '';
1577: if ($env{'form.editdisc'}) {
1578: $postidx = $idx;
1579: }
1580: if (@currnewattach > 0) {
1581: $attachnum += @currnewattach;
1582: }
1583: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver));
1584: if ($attachnum > 0) {
1585: if (@currnewattach > 0) {
1586: $newattachmsg .= '<b>New attachments</b><br />';
1587: if (@currnewattach > 1) {
1588: $newattachmsg .= '<ol>';
1589: foreach my $item (@currnewattach) {
1590: $item =~ m#.*/([^/]+)$#;
1591: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
1592: }
1593: $newattachmsg .= '</ol>'."\n";
1594: } else {
1595: $currnewattach[0] =~ m#.*/([^/]+)$#;
1596: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
1597: }
1598: }
1599: if ($attachmsg) {
1600: $r->print("<b>Retained attachments</b>:$attachmsg<br />\n");
1601: }
1602: if ($newattachmsg) {
1603: $r->print("$newattachmsg<br />");
1604: }
1605: }
1606: }
1607: $r->print(&generate_preview_button().
1608: &Apache::lonhtmlcommon::htmlareaselectactive('comment').
1609: &Apache::loncommon::end_page());
1610:
1611: }
1612:
1613: sub print_display_options {
1614: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
1615: &Apache::loncommon::content_type($r,'text/html');
1616: $r->send_http_header;
1617:
1618: my $function = &Apache::loncommon::get_users_function();
1619: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
1620: $env{'user.domain'});
1621:
1622: my %lt = &Apache::lonlocal::texthash(
1623: 'pref' => 'Display Preference',
1624: 'curr' => 'Current setting ',
1625: 'actn' => 'Action',
1626: 'deff' => 'Default for all discussions',
1627: 'prca' => 'Preferences can be set for this discussion that determine ....',
1628: 'whpo' => 'Which posts are displayed when you display this bulletin board or resource, and',
1629: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
1630: 'wipa' => 'Whether individual posts can be marked as read/unread',
1631: 'allposts' => 'All posts',
1632: 'unread' => 'New posts only',
1633: 'unmark' => 'Posts not marked read',
1634: 'ondisp' => 'Once displayed',
1635: 'onmark' => 'Once marked not NEW ',
1636: 'toggon' => 'Shown',
1637: 'toggoff' => 'Not shown',
1638: 'disa' => 'Posts displayed?',
1639: 'npmr' => 'New posts cease to be identified as "NEW"?',
1640: 'dotm' => 'Option to mark each post as read/unread?',
1641: 'chgt' => 'Change to ',
1642: 'mkdf' => 'Set to ',
1643: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
1644: 'ywbr' => 'You will be returned to the previous page if you click OK.'
1645: );
1646:
1647: my $dispchangeA = $lt{'unread'};
1648: my $dispchangeB = $lt{'unmark'};
1649: my $markchange = $lt{'ondisp'};
1650: my $toggchange = $lt{'toggon'};
1651: my $currdisp = $lt{'allposts'};
1652: my $currmark = $lt{'onmark'};
1653: my $discdisp = 'allposts';
1654: my $discmark = 'onmark';
1655: my $currtogg = $lt{'toggoff'};
1656: my $disctogg = 'toggoff';
1657:
1658: if ($dispchgA eq 'allposts') {
1659: $dispchangeA = $lt{'allposts'};
1660: $currdisp = $lt{'unread'};
1661: $discdisp = 'unread';
1662: }
1663:
1664: if ($markchg eq 'markonread') {
1665: $markchange = $lt{'onmark'};
1666: $currmark = $lt{'ondisp'};
1667: $discmark = 'ondisp';
1668: }
1669:
1670: if ($dispchgB eq 'onlyunread') {
1671: $dispchangeB = $lt{'unread'};
1672: $currdisp = $lt{'unmark'};
1673: $discdisp = 'unmark';
1674: }
1675: if ($toggchg eq 'toggoff') {
1676: $toggchange = $lt{'toggoff'};
1677: $currtogg = $lt{'toggon'};
1678: $disctogg = 'toggon';
1679: }
1680:
1681: my $js = <<END;
1682: <script type="text/javascript">
1683: function discdispChk(caller) {
1684: var disctogg = '$toggchg'
1685: if (caller == 0) {
1686: if (document.modifydisp.discdisp[0].checked == true) {
1687: if (document.modifydisp.discdisp[1].checked == true) {
1688: document.modifydisp.discdisp[1].checked = false
1689: }
1690: }
1691: }
1692: if (caller == 1) {
1693: if (document.modifydisp.discdisp[1].checked == true) {
1694: if (document.modifydisp.discdisp[0].checked == true) {
1695: document.modifydisp.discdisp[0].checked = false
1696: }
1697: if (disctogg == 'toggon') {
1698: document.modifydisp.disctogg.checked = true
1699: }
1700: if (disctogg == 'toggoff') {
1701: document.modifydisp.disctogg.checked = false
1702: }
1703: }
1704: }
1705: if (caller == 2) {
1706: var dispchgB = '$dispchgB'
1707: if (disctogg == 'toggoff') {
1708: if (document.modifydisp.disctogg.checked == true) {
1709: if (dispchgB == 'onlyunmark') {
1710: document.modifydisp.discdisp[1].checked = false
1711: }
1712: }
1713: }
1714: }
1715: }
1716:
1717: function setDisp() {
1718: var prev = "$previous"
1719: var chktotal = 0
1720: if (document.modifydisp.discdisp[0].checked == true) {
1721: document.modifydisp.$dispchgA.value = "$symb"
1722: chktotal ++
1723: }
1724: if (document.modifydisp.discdisp[1].checked == true) {
1725: document.modifydisp.$dispchgB.value = "$symb"
1726: chktotal ++
1727: }
1728: if (document.modifydisp.discmark.checked == true) {
1729: document.modifydisp.$markchg.value = "$symb"
1730: chktotal ++
1731: }
1732: if (document.modifydisp.disctogg.checked == true) {
1733: document.modifydisp.$toggchg.value = "$symb"
1734: chktotal ++
1735: }
1736: if (chktotal > 0) {
1737: document.modifydisp.submit()
1738: } else {
1739: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
1740: if (prev > 0) {
1741: location.href = "$feedurl?previous=$previous"
1742: } else {
1743: location.href = "$feedurl"
1744: }
1745: }
1746: }
1747: }
1748: </script>
1749: END
1750:
1751:
1752: my $start_page =
1753: &Apache::loncommon::start_page('Discussion display options',$js);
1754: my $end_page =
1755: &Apache::loncommon::end_page();
1756: $r->print(<<END);
1757: $start_page
1758: <form name="modifydisp" method="POST" action="/adm/feedback">
1759: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
1760: <br />
1761: END
1762: $r->print(&Apache::loncommon::start_data_table());
1763: $r->print(<<END);
1764: <tr>
1765: <th>$lt{'pref'}</td>
1766: <th>$lt{'curr'}</td>
1767: <th>$lt{'actn'}?</td>
1768: </tr>
1769: END
1770: $r->print(&Apache::loncommon::start_data_table_row());
1771: $r->print(<<END);
1772: <td>$lt{'disa'}</td>
1773: <td>$lt{$discdisp}</td>
1774: <td><label><input type="checkbox" name="discdisp" onClick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"</label>
1775: <br />
1776: <label><input type="checkbox" name="discdisp" onClick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"</label>
1777: </td>
1778: END
1779: $r->print(&Apache::loncommon::end_data_table_row());
1780: $r->print(&Apache::loncommon::start_data_table_row());
1781: $r->print(<<END);
1782: <td>$lt{'npmr'}</td>
1783: <td>$lt{$discmark}</td>
1784: <td><label><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</label></td>
1785: END
1786: $r->print(&Apache::loncommon::end_data_table_row());
1787: $r->print(&Apache::loncommon::start_data_table_row());
1788: $r->print(<<END);
1789: <td>$lt{'dotm'}</td>
1790: <td>$lt{$disctogg}</td>
1791: <td><label><input type="checkbox" name="disctogg" onClick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</label></td>
1792: END
1793: $r->print(&Apache::loncommon::end_data_table_row());
1794: $r->print(&Apache::loncommon::end_data_table());
1795: $r->print(<<END);
1796: <br />
1797: <br />
1798: <input type="hidden" name="symb" value="$symb" />
1799: <input type="hidden" name="previous" value="$previous" />
1800: <input type="hidden" name="$dispchgA" value=""/>
1801: <input type="hidden" name="$dispchgB" value=""/>
1802: <input type="hidden" name="$markchg" value=""/>
1803: <input type="hidden" name="$toggchg" value="" />
1804: <input type="button" name="sub" value="Store Changes" onClick="javascript:setDisp()" />
1805: <br />
1806: <br />
1807: </form>
1808: $end_page
1809: END
1810: return;
1811: }
1812:
1813: sub print_sortfilter_options {
1814: my ($r,$symb,$previous,$feedurl) = @_;
1815:
1816: &Apache::loncommon::content_type($r,'text/html');
1817: $r->send_http_header;
1818:
1819: &Apache::lonenc::check_encrypt(\$symb);
1820: my @sections = ();
1821: my $section_sel = '';
1822: my $numsections = 0;
1823: my $numvisible = 5;
1824: my %sectioncount = ();
1825:
1826: $numsections = &Apache::loncommon::get_sections($env{'course.'.$env{'request.course.id'}.'.domain'},$env{'course.'.$env{'request.course.id'}.'.num'},\%sectioncount);
1827:
1828: if ($env{'request.course.sec'} !~ /^\s*$/) { #Restrict section choice to current section
1829: @sections = ('all',$env{'request.course.sec'});
1830: $numvisible = 2;
1831: } else {
1832: @sections = sort {$a cmp $b} keys(%sectioncount);
1833: unshift(@sections,'all'); # Put 'all' at the front of the list
1834: if ($numsections < 4) {
1835: $numvisible = $numsections + 1;
1836: }
1837: }
1838: foreach (@sections) {
1839: $section_sel .= " <option value=\"$_\" />$_\n";
1840: }
1841:
1842: my $function = &Apache::loncommon::get_users_function();
1843: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
1844: $env{'user.domain'});
1845: my %lt = &Apache::lonlocal::texthash(
1846: 'diop' => 'Display Options',
1847: 'curr' => 'Current setting ',
1848: 'actn' => 'Action',
1849: 'prca' => 'Set options that control the sort order of posts, and/or which posts are displayed.',
1850: 'soor' => 'Sort order',
1851: 'spur' => 'Specific user roles',
1852: 'sprs' => 'Specific role status',
1853: 'spse' => 'Specific sections',
1854: 'psub' => 'Pick specific users (by name)',
1855: 'shal' => 'Show a list of current posters'
1856: );
1857:
1858: my %sort_types = ();
1859: my %role_types = ();
1860: my %status_types = ();
1861: &sort_filter_names(\%sort_types,\%role_types,\%status_types);
1862:
1863: my $js = <<END;
1864: <script type="text/javascript">
1865: function verifyFilter() {
1866: var rolenum = 0
1867: for (var i=0; i<document.modifyshown.rolefilter.length; i++) {
1868: if (document.modifyshown.rolefilter.options[i].selected == true) {
1869: rolenum ++
1870: }
1871: }
1872: if (rolenum == 0) {
1873: document.modifyshown.rolefilter.options[0].selected = true
1874: }
1875:
1876: var secnum = 0
1877: for (var i=0; i<document.modifyshown.sectionpick.length; i++) {
1878: if (document.modifyshown.sectionpick.options[i].selected == true) {
1879: secnum ++
1880: }
1881: }
1882: if (secnum == 0) {
1883: document.modifyshown.sectionpick.options[0].selected = true
1884: }
1885: document.modifyshown.submit();
1886: }
1887: </script>
1888: END
1889:
1890: my $start_page=
1891: &Apache::loncommon::start_page('Discussion options',$js);
1892: my $end_page=
1893: &Apache::loncommon::end_page();
1894:
1895: $r->print(<<END);
1896: $start_page
1897: <form name="modifyshown" method="POST" action="/adm/feedback">
1898: <b>$lt{'diso'}</b><br/> $lt{'prca'}
1899: <br /><br />
1900: <table border="0">
1901: <tr>
1902: <td><b>$lt{'soor'}</b></td>
1903: <td> </td>
1904: <td><b>$lt{'sprs'}</b></td>
1905: <td> </td>
1906: <td><b>$lt{'spur'}</b></td>
1907: <td> </td>
1908: <td><b>$lt{'spse'}</b></td>
1909: <td> </td>
1910: <td><b>$lt{'psub'}</b></td>
1911: </tr>
1912: <tr>
1913: <td align="center">
1914: <select name="sortposts">
1915: <option value="ascdate" selected="selected" />$sort_types{'ascdate'}
1916: <option value="descdate" />$sort_types{'descdate'}
1917: <option value="thread" />$sort_types{'thread'}
1918: <option value="subject" />$sort_types{'subject'}
1919: <option value="username" />$sort_types{'username'}
1920: <option value="lastfirst" />$sort_types{'lastfirst'}
1921: </select>
1922: </td>
1923: <td> </td>
1924: <td align="center">
1925: <select name="statusfilter">
1926: <option value="all" selected="selected" />$status_types{'all'}
1927: <option value="Active" />$status_types{'Active'}
1928: <option value="Expired" />$status_types{'Expired'}
1929: </select>
1930: </td>
1931: <td> </td>
1932: <td align="center">
1933: <select name="rolefilter" multiple="true" size="5">
1934: <option value="all" />$role_types{'all'}
1935: <option value="st" />$role_types{'st'}
1936: <option value="cc" />$role_types{'cc'}
1937: <option value="in" />$role_types{'in'}
1938: <option value="ta" />$role_types{'ta'}
1939: <option value="ep" />$role_types{'ep'}
1940: <option value="ad" />$role_types{'ad'}
1941: <option value="cr" />$role_types{'cr'}
1942: </select>
1943: </td>
1944: <td> </td>
1945: <td align="center">
1946: <select name="sectionpick" multiple="true" size="$numvisible">
1947: $section_sel
1948: </select>
1949: </td>
1950: <td> </td>
1951: <td><label><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</label></td>
1952: </tr>
1953: </table>
1954: <br />
1955: <br />
1956: <input type="hidden" name="previous" value="$previous" />
1957: <input type="hidden" name="applysort" value="$symb" />
1958: <input type="button" name="sub" value="Store Changes" onClick="verifyFilter()" />
1959: <br />
1960: <br />
1961: </form>
1962: $end_page
1963: END
1964: }
1965:
1966: sub print_showposters {
1967: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
1968:
1969: &Apache::loncommon::content_type($r,'text/html');
1970: $r->send_http_header;
1971:
1972: &Apache::lonenc::check_encrypt(\$symb);
1973: my $crs='/'.$env{'request.course.id'};
1974: if ($env{'request.course.sec'}) {
1975: $crs.='_'.$env{'request.course.sec'};
1976: }
1977: $crs=~s/\_/\//g;
1978: my $seeid=&Apache::lonnet::allowed('rin',$crs);
1979: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
1980: $env{'course.'.$env{'request.course.id'}.'.domain'},
1981: $env{'course.'.$env{'request.course.id'}.'.num'});
1982: my %namesort = ();
1983: my %postcounts = ();
1984:
1985: if ($contrib{'version'}) {
1986: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
1987: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
1988: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
1989: unless ((($hidden) && (!$seeid)) || ($deleted)) {
1990: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
1991: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1992: my $lastname = $names{'lastname'};
1993: my $firstname = $names{'firstname'};
1994: if ($lastname eq '') {
1995: $lastname = '_';
1996: }
1997: if ($firstname eq '') {
1998: $firstname = '_';
1999: }
2000: unless (defined($namesort{$lastname})) {
2001: %{$namesort{$lastname}} = ();
2002: }
2003: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
2004: $postcounts{$poster} ++;
2005: if (defined($namesort{$lastname}{$firstname})) {
2006: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
2007: push @{$namesort{$lastname}{$firstname}}, $poster;
2008: }
2009: } else {
2010: @{$namesort{$lastname}{$firstname}} = ("$poster");
2011: }
2012: }
2013: }
2014: }
2015: }
2016:
2017: my $start_page = &Apache::loncommon::start_page('Discussion options');
2018:
2019: $r->print(<<END);
2020: $start_page
2021: <form name="pickpostersform" method="post">
2022: <table border="0">
2023: <tr>
2024: <td bgcolor="#777777">
2025: <table border="0" cellpadding="3">
2026: <tr bgcolor="#e6ffff">
2027: <td><b>No.</b></td>
2028: <td><b>Select</b></td>
2029: <td><b>Fullname</b><font color="#999999">(Username/domain)</font></td>
2030: <td><b>Posts</td>
2031: </tr>
2032: END
2033: my $count = 0;
2034: foreach my $last (sort keys %namesort) {
2035: foreach my $first (sort keys %{$namesort{$last}}) {
2036: foreach (sort @{$namesort{$last}{$first}}) {
2037: my ($uname,$udom) = split/:/,$_;
2038: if (!$uname || !$udom) {
2039: next;
2040: } else {
2041: $count ++;
2042: $r->print('<tr bgcolor="#ffffe6"><td align="right">'.$count.'</td><td align="center"><label><input name="stuinfo" type="checkbox" value="'.$_.'" /></td><td>'.$last.', '.$first.' ('.$uname.','.$udom.')</label></td><td>'.$postcounts{$_}.'</td></tr>');
2043: }
2044: }
2045: }
2046: }
2047:
2048: my $end_page = &Apache::loncommon::end_page();
2049: $r->print(<<END);
2050: </table>
2051: </td>
2052: </tr>
2053: </table>
2054: <br />
2055: <input type="hidden" name="sortposts" value="$sortposts" />
2056: <input type="hidden" name="userpick" value="$symb" />
2057: <input type="button" name="store" value="Display posts" onClick="javascript:document.pickpostersform.submit()" />
2058: </form>
2059: $end_page
2060: END
2061: }
2062:
2063: sub get_post_versions {
2064: my ($versions,$incoming,$htmldecode,$numver) = @_;
2065: if ($incoming =~ /^<version num="0">/) {
2066: my $p = HTML::LCParser->new(\$incoming);
2067: my $done = 0;
2068:
2069: while ( (my $token = $p->get_tag("version")) && (!$done)) {
2070: my $num = $token->[1]{num};
2071: my $text = $p->get_text("/version");
2072: if (defined($numver)) {
2073: if ($num == $numver) {
2074: if ($htmldecode) {
2075: $text = &HTML::Entities::decode($text);
2076: }
2077: $$versions{$numver}=$text;
2078: $done = 1;
2079: }
2080: } else {
2081: if ($htmldecode) {
2082: $text = &HTML::Entities::decode($text);
2083: }
2084: $$versions{$num}=$text;
2085: }
2086: }
2087: } else {
2088: if (!defined($numver)) {
2089: $numver = 0;
2090: }
2091: if ($htmldecode) {
2092: $$versions{$numver} = $incoming;
2093: } else {
2094: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
2095: }
2096: }
2097: return;
2098: }
2099:
2100: sub get_post_attachments {
2101: my ($attachments,$attachmenturls) = @_;
2102: my $num;
2103: if ($attachmenturls =~ m/^<attachment id="0">/) {
2104: my $p = HTML::LCParser->new(\$attachmenturls);
2105: while (my $token = $p->get_tag("attachment","filename","post")) {
2106: if ($token->[0] eq "attachment") {
2107: $num = $token->[1]{id};
2108: %{$$attachments{$num}} =();
2109: } elsif ($token->[0] eq "filename") {
2110: $$attachments{$num}{'filename'} = $p->get_text("/filename");
2111: } elsif ($token->[0] eq "post") {
2112: my $id = $token->[1]{id};
2113: $$attachments{$num}{$id} = $p->get_text("/post");
2114: }
2115: }
2116: } else {
2117: %{$$attachments{'0'}} = ();
2118: $$attachments{'0'}{'filename'} = $attachmenturls;
2119: $$attachments{'0'}{'0'} = 'n';
2120: }
2121:
2122: return;
2123: }
2124:
2125: sub fail_redirect {
2126: my ($r,$feedurl) = @_;
2127: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2128: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2129: $r->print(&Apache::loncommon::start_page('Feedback not sent',undef,
2130: {'redirect' => [2,$feedurl],
2131: 'only_body' => 1,}));
2132: $r->print(<<ENDFAILREDIR);
2133: <img align="right" src="$logo" />
2134: <b>Sorry, no recipients ...</b>
2135: ENDFAILREDIR
2136: $r->print(&Apache::loncommon::end_page());
2137: }
2138:
2139: sub redirect_back {
2140: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$blog,$status,$previous,$sort,$rolefilter,$statusfilter,$sectionpick,$numpicks) = @_;
2141: my $sorttag = '';
2142: my $roletag = '';
2143: my $statustag = '';
2144: my $sectag = '';
2145: my $userpicktag = '';
2146: my $qrystr = '';
2147: my $prevtag = '';
2148:
2149: &Apache::loncommon::content_type($r,'text/html');
2150: $r->send_http_header;
2151:
2152: &dewrapper(\$feedurl);
2153: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2154: if ($previous > 0) {
2155: $qrystr = 'previous='.$previous;
2156: if ($feedurl =~ /\?register=1/) {
2157: $feedurl .= '&'.$qrystr;
2158: } else {
2159: $feedurl .= '?'.$qrystr;
2160: }
2161: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2162: }
2163: if (defined($sort)) {
2164: my $sortqry = 'sortposts='.$sort;
2165: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2166: $feedurl .= '&'.$sortqry;
2167: } else {
2168: $feedurl .= '?'.$sortqry;
2169: }
2170: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2171: if (defined($numpicks)) {
2172: my $userpickqry = 'totposters='.$numpicks;
2173: $feedurl .= '&'.$userpickqry;
2174: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2175: } else {
2176: if (ref($sectionpick) eq 'ARRAY') {
2177: $feedurl .= '§ionpick=';
2178: $sectag .= '<input type="hidden" name="sectionpick" value="';
2179: foreach (@{$sectionpick}) {
2180: $feedurl .= $_.',';
2181: $sectag .= $_.',';
2182: }
2183: $feedurl =~ s/,$//;
2184: $sectag =~ s/,$//;
2185: $sectag .= '" />';
2186: } else {
2187: $feedurl .= '§ionpick='.$sectionpick;
2188: $sectag = '<input type="hidden" name="sectionpick" value="'.$sectionpick.'" />';
2189: }
2190: if (ref($rolefilter) eq 'ARRAY') {
2191: $feedurl .= '&rolefilter=';
2192: $roletag .= '<input type="hidden" name="rolefilter" value="';
2193: foreach (@{$rolefilter}) {
2194: $feedurl .= $_.',';
2195: $roletag .= $_.',';
2196: }
2197: $feedurl =~ s/,$//;
2198: $roletag =~ s/,$//;
2199: $roletag .= '" />';
2200: } else {
2201: $feedurl .= '&rolefilter='.$rolefilter;
2202: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2203: }
2204: $feedurl .= '&statusfilter='.$statusfilter;
2205: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2206: }
2207: }
2208: $feedurl=&Apache::lonenc::check_encrypt($feedurl);
2209: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2210: my %onload = ('onload' => "if (window.name!='loncapaclient') { this.document.reldt.submit(); self.window.close(); }");
2211: my $start_page=
2212: &Apache::loncommon::start_page('New posts marked as read',undef,
2213: {'redirect' => [2,$feedurl],
2214: 'only_body' => 1,
2215: 'add_entries' => \%onload});
2216: my $end_page = &Apache::loncommon::end_page();
2217:
2218: $r->print(<<ENDREDIR);
2219: $start_page
2220: <img align="right" src="$logo" />
2221: $typestyle
2222: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2223: $blog
2224: <font color="red">$status</font>
2225: <form name="reldt" action="$feedurl" target="loncapaclient">
2226: $prevtag
2227: $sorttag
2228: $statustag
2229: $roletag
2230: $sectag
2231: $userpicktag
2232: </form>
2233: $end_page
2234: ENDREDIR
2235: }
2236:
2237: sub no_redirect_back {
2238: my ($r,$feedurl) = @_;
2239: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2240:
2241: my %body_options = ('only_body' => 1,
2242: 'bgcolor' => '#FFFFFF',
2243: 'add_entries' => {'onload' => "if (window.name!='loncapaclient') { self.window.close(); }"});
2244:
2245: if ($feedurl !~ m{^/adm/feedback}) {
2246: $body_options{'rediect'} = [2,$feedurl];
2247: }
2248: my $start_page=
2249: &Apache::loncommon::start_page('Feedback not sent',undef,
2250: \%body_options);
2251:
2252: my $end_page = &Apache::loncommon::end_page();
2253:
2254: $feedurl=&Apache::lonenc::check_encrypt($feedurl);
2255: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
2256: $r->print (<<ENDNOREDIRTWO);
2257: $start_page
2258: <img align="right" src="$logo" />
2259: <b>$nofeed</b>
2260: <br />
2261: $end_page
2262: ENDNOREDIRTWO
2263: }
2264:
2265: sub screen_header {
2266: my ($feedurl,$symb) = @_;
2267: my $msgoptions='';
2268: my $discussoptions='';
2269: unless (($env{'form.replydisc'}) || ($env{'form.editdisc'})) {
2270: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/) && ($env{'user.adv'})) {
2271: $msgoptions=
2272: '<p><label><input type="checkbox" name="author" /> '.
2273: &mt('Feedback to resource author').'</label></p>';
2274: }
2275: if (&feedback_available(1)) {
2276: $msgoptions.=
2277: '<p><label><input type="checkbox" name="question" /> '.
2278: &mt('Question about resource content').'</label></p>';
2279: }
2280: if (&feedback_available(0,1)) {
2281: $msgoptions.=
2282: '<p><label><input type="checkbox" name="course" /> '.
2283: &mt('Question/Comment/Feedback about course content').
2284: '</label></p>';
2285: }
2286: if (&feedback_available(0,0,1)) {
2287: $msgoptions.=
2288: '<p><label><input type="checkbox" name="policy" /> '.
2289: &mt('Question/Comment/Feedback about course policy').
2290: '</label></p>';
2291: }
2292: }
2293: if (($env{'request.course.id'}) && (!$env{'form.sendmessageonly'})) {
2294: if (&discussion_open(undef,$symb) &&
2295: &Apache::lonnet::allowed('pch',
2296: $env{'request.course.id'}.
2297: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
2298: $discussoptions='<label><input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
2299: ($env{'form.replydisc'}?' checked="1"':'').' /> '.
2300: &mt('Contribution to course discussion of resource');
2301: $discussoptions.='</label><br /><label><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '.
2302: &mt('Anonymous contribution to course discussion of resource').
2303: ' <i>('.&mt('name only visible to course faculty').')</i></label> '.
2304: '<a href="/adm/preferences?action=changescreenname">'.&mt('Change Screenname').'</a>';
2305: }
2306: $discussoptions.='<br /><label><input type="checkbox" name="blog" /> '.
2307: &mt('Add to my public course blog').'</label>';
2308: }
2309: if ($msgoptions) { $msgoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/feedback.gif').'" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
2310: if ($discussoptions) {
2311: $discussoptions='<h2><img src="'.&Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').'" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
2312: return $msgoptions.$discussoptions;
2313: }
2314:
2315: sub resource_output {
2316: my ($feedurl) = @_;
2317: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2318: $usersaw=~s/\<body[^\>]*\>//gi;
2319: $usersaw=~s/\<\/body\>//gi;
2320: $usersaw=~s/\<html\>//gi;
2321: $usersaw=~s/\<\/html\>//gi;
2322: $usersaw=~s/\<head\>//gi;
2323: $usersaw=~s/\<\/head\>//gi;
2324: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2325: return $usersaw;
2326: }
2327:
2328: sub clear_out_html {
2329: my ($message,$override,$ignore_htmlarea)=@_;
2330: if (!$ignore_htmlarea
2331: && !&Apache::lonhtmlcommon::htmlareablocked()) { return $message; }
2332: # Always allow the <m>-tag
2333: my %html=(M=>1);
2334: # Check if more is allowed
2335: my $cid=$env{'request.course.id'};
2336: if (($env{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2337: ($override)) {
2338: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2339: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2340: # <SUP>
2341: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2342: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
2343: M=>1, ALGEBRA=>1, SUB=>1, SUP=>1, SPAN=>1,
2344: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1);
2345: }
2346: # Do the substitution of everything that is not explicitly allowed
2347: $message =~ s/\<(\/?\s*(\w*)[^\>\<]*)/
2348: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2349: $message =~ s/(\<?\s*(\w*)[^\<\>]*)\>/
2350: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2351: return $message;
2352: }
2353:
2354: sub assemble_email {
2355: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
2356: my $email=<<"ENDEMAIL";
2357: $message
2358: ENDEMAIL
2359: my $citations=<<"ENDCITE";
2360: <h2>Previous attempts of student (if applicable)</h2>
2361: $prevattempts
2362: <br /><hr />
2363: <h2>Original screen output (if applicable)</h2>
2364: $usersaw
2365: <h2>Correct Answer(s) (if applicable)</h2>
2366: $useranswer
2367: ENDCITE
2368: return ($email,$citations);
2369: }
2370:
2371: sub secapply {
2372: my $rec=shift;
2373: my $defaultflag=shift;
2374: $rec=~s/\s+//g;
2375: $rec=~s/\@/\:/g;
2376: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
2377: if ($sections) {
2378: foreach (split(/\;/,$sections)) {
2379: if (($_ eq $env{'request.course.sec'}) ||
2380: ($defaultflag && ($_ eq '*'))) {
2381: return $adr;
2382: }
2383: }
2384: } else {
2385: return $rec;
2386: }
2387: return '';
2388: }
2389:
2390: =pod
2391:
2392: =over 4
2393:
2394: =item *
2395:
2396: decide_receiver($feedurl,$author,$question,$course,$policy,$defaultflag);
2397:
2398: Arguments
2399: $feedurl - /res/ url of resource (only need if $author is true)
2400: $author,$question,$course,$policy - all true/false parameters
2401: if true will attempt to find the addresses of user that should receive
2402: this type of feedback (author - feedback to author of resource $feedurl,
2403: $question 'Resource Content Questions', $course 'Course Content Question',
2404: $policy 'Course Policy')
2405: (Additionally it also checks $env for whether the corresponding form.<name>
2406: element exists, for ease of use in a html response context)
2407:
2408: $defaultflag - (internal should be left blank) if true gather addresses
2409: that aren't for a section even if I have a section
2410: (used for reccursion internally, first we look for
2411: addresses for our specific section then we recurse
2412: and look for non section addresses)
2413:
2414: Returns
2415: $typestyle - string of html text, describing what addresses were found
2416: %to - a hash, which keys are addresses of users to send messages to
2417: the keys will look like name:domain
2418:
2419: =cut
2420:
2421: sub decide_receiver {
2422: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
2423: my $typestyle='';
2424: my %to=();
2425: if ($env{'form.author'}||$author) {
2426: $typestyle.='Submitting as Author Feedback<br />';
2427: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
2428: $to{$2.':'.$1}=1;
2429: }
2430: if ($env{'form.question'}||$question) {
2431: $typestyle.='Submitting as Question<br />';
2432: foreach (split(/\,/,
2433: $env{'course.'.$env{'request.course.id'}.'.question.email'})
2434: ) {
2435: my $rec=&secapply($_,$defaultflag);
2436: if ($rec) { $to{$rec}=1; }
2437: }
2438: }
2439: if ($env{'form.course'}||$course) {
2440: $typestyle.='Submitting as Comment<br />';
2441: foreach (split(/\,/,
2442: $env{'course.'.$env{'request.course.id'}.'.comment.email'})
2443: ) {
2444: my $rec=&secapply($_,$defaultflag);
2445: if ($rec) { $to{$rec}=1; }
2446: }
2447: }
2448: if ($env{'form.policy'}||$policy) {
2449: $typestyle.='Submitting as Policy Feedback<br />';
2450: foreach (split(/\,/,
2451: $env{'course.'.$env{'request.course.id'}.'.policy.email'})
2452: ) {
2453: my $rec=&secapply($_,$defaultflag);
2454: if ($rec) { $to{$rec}=1; }
2455: }
2456: }
2457: if ((scalar(%to) eq '0') && (!$defaultflag)) {
2458: ($typestyle,%to)=
2459: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
2460: }
2461: return ($typestyle,%to);
2462: }
2463:
2464: sub feedback_available {
2465: my ($question,$course,$policy)=@_;
2466: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
2467: return scalar(%to);
2468: }
2469:
2470: sub send_msg {
2471: my ($title,$feedurl,$email,$citations,$attachmenturl,%to)=@_;
2472: my $status='';
2473: my $sendsomething=0;
2474: if ($title=~/^Error/) { $title=&mt('Feedback').': '.$title; }
2475: unless ($title=~/\w/) { $title=&mt('Feedback'); }
2476: foreach (keys %to) {
2477: if ($_) {
2478: my $declutter=&Apache::lonnet::declutter($feedurl);
2479: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
2480: $title.' ['.$declutter.']',$email,$citations,$feedurl,
2481: $attachmenturl)=~/ok/) {
2482: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
2483: } else {
2484: $sendsomething++;
2485: }
2486: }
2487: }
2488:
2489: my %record=&Apache::lonnet::restore('_feedback');
2490: my ($temp)=keys %record;
2491: unless ($temp=~/^error\:/) {
2492: my %newrecord=();
2493: $newrecord{'resource'}=$feedurl;
2494: $newrecord{'subnumber'}=$record{'subnumber'}+1;
2495: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
2496: $status.='<br />'.&mt('Not registered').'<br />';
2497: }
2498: }
2499:
2500: return ($status,$sendsomething);
2501: }
2502:
2503: sub adddiscuss {
2504: my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
2505: my $status='';
2506: my $realsymb;
2507: if ($symb=~/^bulletin___/) {
2508: my $filename=(&Apache::lonnet::decode_symb($symb))[2];
2509: $filename=~s|^adm/wrapper/||;
2510: $realsymb=&Apache::lonnet::symbread($filename);
2511: }
2512: if (&discussion_open(undef,$realsymb) &&
2513: &Apache::lonnet::allowed('pch',$env{'request.course.id'}.
2514: ($env{'request.course.sec'}?'/'.$env{'request.course.sec'}:''))) {
2515:
2516: my %contrib=('message' => $email,
2517: 'sendername' => $env{'user.name'},
2518: 'senderdomain' => $env{'user.domain'},
2519: 'screenname' => $env{'environment.screenname'},
2520: 'plainname' => $env{'environment.firstname'}.' '.
2521: $env{'environment.middlename'}.' '.
2522: $env{'environment.lastname'}.' '.
2523: $env{'enrironment.generation'},
2524: 'attachmenturl'=> $attachmenturl,
2525: 'subject' => $subject);
2526: if ($env{'form.replydisc'}) {
2527: $contrib{'replyto'}=(split(/\:\:\:/,$env{'form.replydisc'}))[1];
2528: }
2529: if ($anon) {
2530: $contrib{'anonymous'}='true';
2531: }
2532: if (($symb) && ($email)) {
2533: if ($env{'form.editdisc'}) {
2534: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
2535: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
2536: $contrib{'timestamp'} = time;
2537: $contrib{'history'} = '';
2538: my $numoldver = 0;
2539: my ($oldsymb,$oldidx)=split(/\:\:\:/,$env{'form.editdisc'});
2540: &Apache::lonenc::check_decrypt(\$oldsymb);
2541: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
2542: # get timestamp for last post and history
2543: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$env{'request.course.id'},
2544: $env{'course.'.$env{'request.course.id'}.'.domain'},
2545: $env{'course.'.$env{'request.course.id'}.'.num'});
2546: if (defined($oldcontrib{$oldidx.':replyto'})) {
2547: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
2548: }
2549: if (defined($oldcontrib{$oldidx.':history'})) {
2550: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
2551: my @oldversions = split/:/,$oldcontrib{$oldidx.':history'};
2552: $numoldver = @oldversions;
2553: } else {
2554: $numoldver = 1;
2555: }
2556: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
2557: }
2558: my $numnewver = $numoldver + 1;
2559: if (defined($oldcontrib{$oldidx.':subject'})) {
2560: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
2561: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
2562: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
2563: } else {
2564: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
2565: }
2566: }
2567: if (defined($oldcontrib{$oldidx.':message'})) {
2568: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
2569: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
2570: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
2571: } else {
2572: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
2573: }
2574: }
2575: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
2576: my $put_reply = &Apache::lonnet::putstore($env{'request.course.id'},
2577: $oldsymb,$oldidx,\%contrib,
2578: $env{'course.'.$env{'request.course.id'}.'.domain'},
2579: $env{'course.'.$env{'request.course.id'}.'.num'});
2580: $status='Editing class discussion'.($anon?' (anonymous)':'');
2581: } else {
2582: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
2583: &Apache::lonnet::store(\%contrib,$symb,$env{'request.course.id'},
2584: $env{'course.'.$env{'request.course.id'}.'.domain'},
2585: $env{'course.'.$env{'request.course.id'}.'.num'});
2586: }
2587: my %storenewentry=($symb => time);
2588: $status.='<br />'.&mt('Updating discussion time').': '.
2589: &Apache::lonnet::put('discussiontimes',\%storenewentry,
2590: $env{'course.'.$env{'request.course.id'}.'.domain'},
2591: $env{'course.'.$env{'request.course.id'}.'.num'});
2592: }
2593: my %record=&Apache::lonnet::restore('_discussion');
2594: my ($temp)=keys %record;
2595: unless ($temp=~/^error\:/) {
2596: my %newrecord=();
2597: $newrecord{'resource'}=$symb;
2598: $newrecord{'subnumber'}=$record{'subnumber'}+1;
2599: $status.='<br />'.&mt('Registering').': '.
2600: &Apache::lonnet::cstore(\%newrecord,'_discussion');
2601: }
2602: } else {
2603: $status.='Failed.';
2604: }
2605: return $status.'<br />';
2606: }
2607:
2608: # ----------------------------------------------------------- Preview function
2609:
2610: sub show_preview {
2611: my ($r) = @_;
2612: &Apache::loncommon::content_type($r,'text/html');
2613: $r->send_http_header;
2614: my $message=&clear_out_html($env{'form.comment'});
2615: &newline_to_br(\$message);
2616: $message=&Apache::lonspeller::markeduptext($message);
2617: $message=&Apache::lontexconvert::msgtexconverted($message);
2618: my $subject=&clear_out_html($env{'form.subject'},undef,1);
2619: $subject=~s/\n/\<br \/\>/g;
2620: $subject=&Apache::lontexconvert::msgtexconverted($subject);
2621: my $start_page=
2622: &Apache::loncommon::start_page('Preview',undef,
2623: {'only_body' => 1,});
2624:
2625: my $end_page = &Apache::loncommon::end_page();
2626:
2627: $r->print($start_page.'<table border="2"><tr><td>'.
2628: '<b>Subject:</b> '.$subject.'<br /><br />'.
2629: $message.'</td></tr></table>'.$end_page);
2630: }
2631:
2632:
2633: sub newline_to_br {
2634: my ($message)=@_;
2635: my $newmessage;
2636: my $parser=HTML::LCParser->new($message);
2637: while (my $token=$parser->get_token()) {
2638: if ($token->[0] eq 'T') {
2639: my $text=$token->[1];
2640: $text=~s/\n/\<br \/\>/g;
2641: $newmessage.=$text;
2642: } elsif ($token->[0] eq 'D' || $token->[0] eq 'C') {
2643: $newmessage.=$token->[1];
2644: } elsif ($token->[0] eq 'PI' || $token->[0] eq 'E') {
2645: $newmessage.=$token->[2];
2646: } elsif ($token->[0] eq 'S') {
2647: $newmessage.=$token->[4];
2648: }
2649:
2650: }
2651: $$message=$newmessage;
2652: }
2653:
2654: sub generate_preview_button {
2655: my ($formname,$fieldname)=@_;
2656: unless ($formname) { $formname='mailform'; }
2657: unless ($fieldname) { $fieldname='comment'; }
2658: my $pre=&mt("Show Preview and Check Spelling");
2659: return(<<ENDPREVIEW);
2660: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
2661: <input type="hidden" name="subject">
2662: <input type="hidden" name="comment" />
2663: <input type="button" value="$pre"
2664: 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();" />
2665: </form>
2666: ENDPREVIEW
2667: }
2668:
2669: sub modify_attachments {
2670: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls)=@_;
2671: my $orig_subject = &Apache::lonnet::unescape($env{'form.subject'});
2672: my $subject=&clear_out_html($orig_subject,undef,1);
2673: $subject=~s/\n/\<br \/\>/g;
2674: $subject=&Apache::lontexconvert::msgtexconverted($subject);
2675: my $timestamp=$env{'form.timestamp'};
2676: my $numoldver=$env{'form.numoldver'};
2677:
2678: my $msg = '';
2679: my %attachments = ();
2680: my %currattach = ();
2681: if ($idx) {
2682: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
2683: }
2684: &Apache::lonenc::check_encrypt(\$symb);
2685: my $js = <<END;
2686: <script type="text/javascript">
2687: function setAction () {
2688: document.modattachments.action = document.modattachments.origpage.value;
2689: document.modattachments.submit();
2690: }
2691: </script>
2692: END
2693:
2694: my $start_page =
2695: &Apache::loncommon::start_page('Discussion Post Attachments',$js);
2696: my $end_page =
2697: &Apache::loncommon::end_page();
2698:
2699: $r->print(<<END);
2700: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
2701: <table border="2">
2702: <tr>
2703: <td>
2704: <b>Subject:</b> $subject</b><br /><br />
2705: END
2706: if ($idx) {
2707: if ($attachmenturls) {
2708: my @currold = keys %currattach;
2709: if (@currold > 0) {
2710: $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");
2711: foreach my $id (@currold) {
2712: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
2713: $attachurl =~ m#/([^/]+)$#;
2714: $r->print('<label><input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'</label><br />'."\n");
2715: }
2716: $r->print("<br />");
2717: }
2718: }
2719: }
2720: if (@{$currnewattach} > 0) {
2721: $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");
2722: foreach (@{$currnewattach}) {
2723: $_ =~ m#/([^/]+)$#;
2724: $r->print('<label><input type="checkbox" name="delnewattach" value="'.$_.'" /> '.$1.'</label><br />'."\n");
2725: }
2726: $r->print("<br />");
2727: }
2728: $r->print(<<END);
2729: Add a new attachment to this post. <input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onClick="this.form.submit()" />
2730: </td>
2731: </tr>
2732: </table>
2733: <input type="hidden" name="subject" value="$env{'form.subject'}" />
2734: <input type="hidden" name="comment" value="$env{'form.comment'}" />
2735: <input type="hidden" name="timestamp" value="$env{'form.timestamp'}" />
2736: <input type="hidden" name="idx" value="$env{'form.idx'}" />
2737: <input type="hidden" name="numoldver" value="$env{'form.numoldver'}" />
2738: <input type="hidden" name="origpage" value="$env{'form.origpage'}" />
2739: <input type="hidden" name="anondiscuss" value="$env{'form.anondiscuss'}" />
2740: <input type="hidden" name="blog" value="$env{'form.blog'}" />
2741: <input type="hidden" name="discuss" value="$env{'form.discuss'}" />
2742: END
2743: foreach (@{$currnewattach}) {
2744: $r->print('<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n");
2745: }
2746: foreach (@{$currdelold}) {
2747: $r->print('<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n");
2748: }
2749: $r->print(<<END);
2750: <input type="button" name="rtntoedit" value="Store Changes" onClick="setAction()"/>
2751: </form>
2752: $end_page
2753: END
2754: return;
2755: }
2756:
2757: sub process_attachments {
2758: my ($currnewattach,$currdelold,$keepold) = @_;
2759:
2760: @{$currnewattach}=
2761: &Apache::loncommon::get_env_multiple('form.currnewattach');
2762: @{$currdelold}=
2763: &Apache::loncommon::get_env_multiple('form.deloldattach');
2764: if (exists($env{'form.delnewattach'})) {
2765: my @currdelnew =
2766: &Apache::loncommon::get_env_multiple('form.delnewattach');
2767: my @currnew = ();
2768: foreach my $newone (@{$currnewattach}) {
2769: my $delflag = 0;
2770: foreach (@currdelnew) {
2771: if ($newone eq $_) {
2772: $delflag = 1;
2773: last;
2774: }
2775: }
2776: unless ($delflag) {
2777: push @currnew, $newone;
2778: }
2779: }
2780: @{$currnewattach} = @currnew;
2781: }
2782: @{$keepold} = &Apache::loncommon::get_env_multiple('form.keepold');
2783: }
2784:
2785: sub generate_attachments_button {
2786: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,$numoldver,$mode) = @_;
2787: my $origpage = $ENV{'REQUEST_URI'};
2788: my $att=$attachnum.' '.&mt("attachments");
2789: my $response = (<<END);
2790: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
2791: Click to add/remove attachments: <input type="button" value="$att"
2792: 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);
2793: END
2794: unless ($mode eq 'board') {
2795: $response .= 'javascript:anonchk();';
2796: }
2797: $response .= (<<ENDATTACH);
2798: this.form.submit();" />
2799: <input type="hidden" name="origpage" value="$origpage" />
2800: <input type="hidden" name="idx" value="$idx" />
2801: <input type="hidden" name="timestamp" value="$now" />
2802: <input type="hidden" name="subject" />
2803: <input type="hidden" name="comment" />
2804: <input type="hidden" name="blog" value = "0" />
2805: <input type="hidden" name="anondiscuss" value = "0" />
2806: <input type="hidden" name="discuss" value = "0" />
2807: <input type="hidden" name="numoldver" value="$numoldver" />
2808: ENDATTACH
2809: if (defined($deloldattach)) {
2810: if (@{$deloldattach} > 0) {
2811: foreach (@{$deloldattach}) {
2812: $response .= '<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n";
2813: }
2814: }
2815: }
2816: if (defined($currnewattach)) {
2817: if (@{$currnewattach} > 0) {
2818: foreach (@{$currnewattach}) {
2819: $response .= '<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n";
2820: }
2821: }
2822: }
2823: $response .= '</form>';
2824: return $response;
2825: }
2826:
2827: sub extract_attachments {
2828: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
2829: %{$attachments}=();
2830: &get_post_attachments($attachments,$attachmenturls);
2831: foreach my $id (sort keys %{$attachments}) {
2832: if (exists($$attachments{$id}{$numoldver})) {
2833: if (defined($currdelold)) {
2834: if (@{$currdelold} > 0) {
2835: unless (grep/^$id$/,@{$currdelold}) {
2836: $$currattach{$id} = $$attachments{$id}{$numoldver};
2837: }
2838: } else {
2839: $$currattach{$id} = $$attachments{$id}{$numoldver};
2840: }
2841: } else {
2842: $$currattach{$id} = $$attachments{$id}{$numoldver};
2843: }
2844: }
2845: }
2846: my @attached = (sort { $a <=> $b } keys %{$currattach});
2847: if (@attached == 1) {
2848: my $id = $attached[0];
2849: my $attachurl;
2850: if ($attachmenturls =~ m/^<attachment id="0">/) {
2851: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
2852: } else {
2853: $attachurl = $$attachments{$id}{'filename'};
2854: }
2855: $attachurl=~m|/([^/]+)$|;
2856: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
2857: $1.'</tt></a><br />';
2858: &Apache::lonnet::allowuploaded('/adm/feedback',
2859: $attachurl);
2860: } elsif (@attached > 1) {
2861: $$message.='<ol>';
2862: foreach (@attached) {
2863: my $id = $_;
2864: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
2865: my ($fname)
2866: =($attachurl=~m|/([^/]+)$|);
2867: $$message .= '<li><a href="'.$attachurl.
2868: '"><tt>'.
2869: $fname.'</tt></a></li>';
2870: &Apache::lonnet::allowuploaded('/adm/feedback',
2871: $attachurl);
2872: }
2873: $$message .= '</ol>';
2874: }
2875: }
2876:
2877: sub construct_attachmenturl {
2878: my ($currnewattach,$keepold,$symb,$idx)=@_;
2879: my $oldattachmenturl;
2880: my $newattachmenturl;
2881: my $startnum = 0;
2882: my $currver = 0;
2883: if (($env{'form.editdisc'}) && ($idx)) {
2884: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
2885: $env{'course.'.$env{'request.course.id'}.'.domain'},
2886: $env{'course.'.$env{'request.course.id'}.'.num'});
2887: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
2888: if ($contrib{$idx.':history'}) {
2889: if ($contrib{$idx.':history'} =~ /:/) {
2890: my @oldversions = split/:/,$contrib{$idx.':history'};
2891: $currver = 1 + scalar(@oldversions);
2892: } else {
2893: $currver = 2;
2894: }
2895: } else {
2896: $currver = 1;
2897: }
2898: if ($oldattachmenturl) {
2899: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
2900: my %attachments = ();
2901: my $prevver = $currver-1;
2902: &get_post_attachments(\%attachments,$oldattachmenturl);
2903: my $numattach = scalar(keys %attachments);
2904: $startnum += $numattach;
2905: foreach my $num (sort {$a <=> $b} keys %attachments) {
2906: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
2907: foreach $_ (sort {$a <=> $b} keys %{$attachments{$num}}) {
2908: unless ($_ eq 'filename') {
2909: $newattachmenturl .= '<post id="'.$_.'">'.$attachments{$num}{$_}.'</post>';
2910: }
2911: }
2912: if (grep/^$num$/,@{$keepold}) {
2913: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
2914: }
2915: $newattachmenturl .= '</attachment>';
2916: }
2917: } else {
2918: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
2919: unless (grep/^0$/,@{$keepold}) {
2920: $newattachmenturl .= '<post id="1">n</post>';
2921: }
2922: $newattachmenturl .= '</attachment>';
2923: $startnum ++;
2924: }
2925: }
2926: }
2927: for (my $i=0; $i<@{$currnewattach}; $i++) {
2928: my $attachnum = $startnum + $i;
2929: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
2930: }
2931: return $newattachmenturl;
2932: }
2933:
2934: sub has_discussion {
2935: my $resourcesref = shift;
2936: my $navmap = Apache::lonnavmaps::navmap->new();
2937: my @allres=$navmap->retrieveResources();
2938: foreach my $resource (@allres) {
2939: if ($resource->hasDiscussion()) {
2940: my $ressymb = $resource->wrap_symb();
2941: push @{$resourcesref}, $ressymb;
2942: }
2943: }
2944: return;
2945: }
2946:
2947: sub sort_filter_names {
2948: my ($sort_types,$role_types,$status_types) = @_;
2949: %{$sort_types} = (
2950: ascdate => 'Date order - oldest first',
2951: descdate => 'Date order - newest first',
2952: thread => 'Threaded',
2953: subject => 'By subject',
2954: username => 'By domain and username',
2955: lastfirst => 'By last name, first name'
2956: );
2957: %{$role_types} = (
2958: all => 'All roles',
2959: st => 'Students',
2960: cc => 'Course Coordinators',
2961: in => 'Instructors',
2962: ta => 'TAs',
2963: ep => 'Exam proctors',
2964: ad => 'Administrators',
2965: cr => 'Custom roles'
2966: );
2967: %{$status_types} = (
2968: all => 'Roles of any status',
2969: Active => 'Only active roles',
2970: Expired => 'Only inactive roles'
2971: );
2972: }
2973:
2974: sub handler {
2975: my $r = shift;
2976: if ($r->header_only) {
2977: &Apache::loncommon::content_type($r,'text/html');
2978: $r->send_http_header;
2979: return OK;
2980: }
2981:
2982: # --------------------------- Get query string for limited number of parameters
2983:
2984: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2985: ['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']);
2986: if ($env{'form.editdisc'}) {
2987: if (!(&editing_allowed())) {
2988: my $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
2989: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
2990: my $feedurl=&Apache::lonnet::clutter($url);
2991: &redirect_back($r,$feedurl,&mt('Editing not permitted').'<br />', '0','0','','',$env{'form.previous'},'','','',);
2992: return OK;
2993: }
2994: }
2995: if ($env{'form.discsymb'}) {
2996: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.discsymb'});
2997: my $readkey = $symb.'_read';
2998: my $chgcount = 0;
2999: my %readinghash = &Apache::lonnet::get('nohist_'.$env{'request.course.id'}.'_discuss',[$readkey],$env{'user.domain'},$env{'user.name'});
3000: foreach my $key (keys %env) {
3001: if ($key =~ m/^form\.postunread_(\d+)/) {
3002: if ($readinghash{$readkey} =~ /\.$1\./) {
3003: $readinghash{$readkey} =~ s/\.$1\.//;
3004: $chgcount ++;
3005: }
3006: } elsif ($key =~ m/^form\.postread_(\d+)/) {
3007: unless ($readinghash{$readkey} =~ /\.$1\./) {
3008: $readinghash{$readkey} .= '.'.$1.'.';
3009: $chgcount ++;
3010: }
3011: }
3012: }
3013: if ($chgcount > 0) {
3014: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3015: \%readinghash,$env{'user.domain'},$env{'user.name'});
3016: }
3017: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
3018: '0','0','','',$env{'form.previous'},'','','',);
3019: return OK;
3020: }
3021: if ($env{'form.allversions'}) {
3022: &Apache::loncommon::content_type($r,'text/html');
3023: &Apache::loncommon::no_cache($r);
3024: $r->send_http_header;
3025:
3026: $r->print(&Apache::loncommon::start_page('Discussion Post Versions'));
3027:
3028: my $crs='/'.$env{'request.course.id'};
3029: if ($env{'request.course.sec'}) {
3030: $crs.='_'.$env{'request.course.sec'};
3031: }
3032: $crs=~s|_|/|g;
3033: my $seeid=&Apache::lonnet::allowed('rin',$crs);
3034: my ($symb,$idx)=split(/\:\:\:/,$env{'form.allversions'});
3035: ($symb)=&get_feedurl_and_clean_symb($symb);
3036: if ($idx > 0) {
3037: my %messages = ();
3038: my %subjects = ();
3039: my %attachmsgs = ();
3040: my %allattachments = ();
3041: my %imsfiles = ();
3042: my ($screenname,$plainname);
3043: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3044: $env{'course.'.$env{'request.course.id'}.'.domain'},
3045: $env{'course.'.$env{'request.course.id'}.'.num'});
3046: $r->print(&get_post_contents(\%contrib,$idx,$seeid,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname));
3047: }
3048: $r->print(&Apache::loncommon::end_page());
3049: return OK;
3050: }
3051: if ($env{'form.posterlist'}) {
3052: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3053: &print_showposters($r,$symb,$env{'form.previous'},$feedurl,
3054: $env{'form.sortposts'});
3055: return OK;
3056: }
3057: if ($env{'form.userpick'}) {
3058: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
3059: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.userpick'});
3060: my $numpicks = @posters;
3061: my %discinfo;
3062: $discinfo{$symb.'_userpick'} = join('&',@posters);
3063: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3064: \%discinfo,$env{'user.domain'},$env{'user.name'});
3065: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3066: '',$env{'form.previous'},$env{'form.sortposts'},'','','',
3067: $numpicks);
3068: return OK;
3069: }
3070: if ($env{'form.applysort'}) {
3071: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.applysort'});
3072: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0','',
3073: '',$env{'form.previous'},$env{'form.sortposts'},
3074: $env{'form.rolefilter'},$env{'form.statusfilter'},
3075: $env{'form.sectionpick'});
3076: return OK;
3077: } elsif ($env{'form.cmd'} eq 'sortfilter') {
3078: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3079: &print_sortfilter_options($r,$symb,$env{'form.previous'},$feedurl);
3080: return OK;
3081: } elsif ($env{'form.navtime'}) {
3082: my %discinfo = ();
3083: my @resources = ();
3084: if (defined($env{'form.navmaps'})) {
3085: if ($env{'form.navmaps'} =~ /:/) {
3086: @resources = split/:/,$env{'form.navmaps'};
3087: } else {
3088: @resources = ("$env{'form.navmaps'}");
3089: }
3090: } else {
3091: &has_discussion(\@resources);
3092: }
3093: my $numitems = @resources;
3094: my $feedurl = '/adm/navmaps';
3095: if ($env{'form.navurl'}) { $feedurl .= '?'.$env{'form.navurl'}; }
3096: my %lt = &Apache::lonlocal::texthash(
3097: 'mnpa' => 'Marked "New" posts as read in a total of',
3098: 'robb' => 'resources/bulletin boards.',
3099: 'twnp' => 'There are currently no resources or bulletin boards with unread discussion postings.'
3100: );
3101: foreach (@resources) {
3102: my $ressymb=$_;
3103: &Apache::lonenc::check_decrypt(\$ressymb);
3104: my $lastkey = $ressymb.'_lastread';
3105: $discinfo{$lastkey} = $env{'form.navtime'};
3106: }
3107: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
3108: if ($numitems > 0) {
3109: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3110: \%discinfo,$env{'user.domain'},$env{'user.name'});
3111: } else {
3112: $textline = "<b>$lt{'twnp'}</b>";
3113: }
3114: &Apache::loncommon::content_type($r,'text/html');
3115: $r->send_http_header;
3116: my $logo=&Apache::loncommon::lonhttpdurl('/adm/lonIcons/lonlogos.gif');
3117: my %onload = ('onload' => "if (window.name!='loncapaclient') { this.document.reldt.submit(); self.window.close(); }");
3118: my $start_page=
3119: &Apache::loncommon::start_page('New posts marked as read',undef,
3120: {'redirect' => [2,$feedurl],
3121: 'only_body' => 1,
3122: 'add_entries' => \%onload});
3123: my $end_page = &Apache::loncommon::end_page();
3124: $r->print (<<ENDREDIR);
3125: $start_page
3126: <img align="right" src="$logo" />
3127: $textline
3128: <form name="reldt" action="$feedurl" target="loncapaclient">
3129: </form>
3130: <br />
3131: $end_page
3132: ENDREDIR
3133: return OK;
3134: } elsif ($env{'form.modifydisp'}) {
3135: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.modifydisp'});
3136: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
3137: split(/_/,$env{'form.changes'});
3138: &print_display_options($r,$symb,$env{'form.previous'},$dispchgA,
3139: $dispchgB,$markchg,$toggchg,$feedurl);
3140: return OK;
3141: } elsif ($env{'form.markondisp'} || $env{'form.markonread'} ||
3142: $env{'form.allposts'} || $env{'form.onlyunread'} ||
3143: $env{'form.onlyunmark'} || $env{'form.toggoff'} ||
3144: $env{'form.toggon'} || $env{'form.markread'}) {
3145: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3146: my %discinfo;
3147: # ------------------------ Modify setting for read/unread toggle for each post
3148: if ($env{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
3149: if ($env{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
3150: # --------- Modify setting for identification of 'NEW' posts in this discussion
3151: if ($env{'form.markondisp'}) {
3152: $discinfo{$symb.'_lastread'} = time;
3153: $discinfo{$symb.'_markondisp'} = 1;
3154: }
3155: if ($env{'form.markonread'}) {
3156: if ( $env{'form.previous'} > 0 ) {
3157: $discinfo{$symb.'_lastread'} = $env{'form.previous'};
3158: }
3159: $discinfo{$symb.'_markondisp'} = 0;
3160: }
3161: # --------------------------------- Modify display setting for this discussion
3162: if ($env{'form.allposts'}) {
3163: $discinfo{$symb.'_showonlyunread'} = 0;
3164: $discinfo{$symb.'_showonlyunmark'} = 0;
3165: }
3166: if ($env{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
3167: if ($env{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
3168: # ----------------------------------------------------- Mark new posts not NEW
3169: if ($env{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
3170: &Apache::lonnet::put('nohist_'.$env{'request.course.id'}.'_discuss',
3171: \%discinfo,$env{'user.domain'},$env{'user.name'});
3172: my $previous=$env{'form.previous'};
3173: if ($env{'form.markondisp'}) { $previous=undef; }
3174: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
3175: '0','0','','',$previous);
3176: return OK;
3177: } elsif (($env{'form.hide'}) || ($env{'form.unhide'})) {
3178: # ----------------------------------------------------------------- Hide/unhide
3179: my $entry=$env{'form.hide'}?$env{'form.hide'}:$env{'form.unhide'};
3180: my ($symb,$idx)=split(/\:\:\:/,$entry);
3181: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
3182:
3183: my $crs='/'.$env{'request.course.id'};
3184: if ($env{'request.course.sec'}) {
3185: $crs.='_'.$env{'request.course.sec'};
3186: }
3187: $crs=~s/\_/\//g;
3188: my $seeid=&Apache::lonnet::allowed('rin',$crs);
3189:
3190: if ($env{'form.hide'} && !$seeid && !(&editing_allowed())) {
3191: &redirect_back($r,$feedurl,&mt('Deletion not permitted').'<br />', '0','0','','',$env{'form.previous'},'','','',);
3192: return OK;
3193: }
3194:
3195: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3196: $env{'course.'.$env{'request.course.id'}.'.domain'},
3197: $env{'course.'.$env{'request.course.id'}.'.num'});
3198:
3199: my $currenthidden=$contrib{'hidden'};
3200: my $currentstudenthidden=$contrib{'studenthidden'};
3201:
3202: if ($env{'form.hide'}) {
3203: $currenthidden.='.'.$idx.'.';
3204: unless ($seeid) {
3205: $currentstudenthidden.='.'.$idx.'.';
3206: }
3207: } else {
3208: $currenthidden=~s/\.$idx\.//g;
3209: }
3210: my %newhash=('hidden' => $currenthidden);
3211: if ( ($env{'form.hide'}) && (!$seeid) ) {
3212: $newhash{'studenthidden'} = $currentstudenthidden;
3213: }
3214:
3215: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
3216: $env{'course.'.$env{'request.course.id'}.'.domain'},
3217: $env{'course.'.$env{'request.course.id'}.'.num'});
3218:
3219: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
3220: '0','0','','',$env{'form.previous'});
3221: return OK;
3222: } elsif ($env{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
3223: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($env{'form.symb'});
3224: if ($env{'form.cmd'} eq 'threadedon') {
3225: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
3226: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
3227: } else {
3228: &Apache::lonnet::del('environment',['threadeddiscussion']);
3229: &Apache::lonnet::delenv('environment\.threadeddiscussion');
3230: }
3231: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
3232: '0','0','','',$env{'form.previous'});
3233: return OK;
3234: } elsif ($env{'form.deldisc'}) {
3235: # --------------------------------------------------------------- Hide for good
3236: my ($symb,$idx)=split(/\:\:\:/,$env{'form.deldisc'});
3237: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
3238: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3239: $env{'course.'.$env{'request.course.id'}.'.domain'},
3240: $env{'course.'.$env{'request.course.id'}.'.num'});
3241: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
3242: &Apache::lonnet::store(\%newhash,$symb,$env{'request.course.id'},
3243: $env{'course.'.$env{'request.course.id'}.'.domain'},
3244: $env{'course.'.$env{'request.course.id'}.'.num'});
3245: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
3246: '0','0','','',$env{'form.previous'});
3247: return OK;
3248: } elsif ($env{'form.preview'}) {
3249: # -------------------------------------------------------- User wants a preview
3250: &show_preview($r);
3251: return OK;
3252: } elsif ($env{'form.attach'}) {
3253: # -------------------------------------------------------- Work on attachments
3254: &Apache::loncommon::content_type($r,'text/html');
3255: $r->send_http_header;
3256: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','anondiscuss','discuss','blog']);
3257: my (@currnewattach,@currdelold,@keepold);
3258: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
3259: if (exists($env{'form.addnewattach.filename'})) {
3260: unless (length($env{'form.addnewattach'})>131072) {
3261: my $subdir = 'feedback/'.$env{'form.timestamp'};
3262: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
3263: push @currnewattach, $newattachment;
3264: }
3265: }
3266: my $attachmenturls;
3267: my ($symb) = &get_feedurl_and_clean_symb($env{'form.attach'});
3268: my $idx = $env{'form.idx'};
3269: if ($idx) {
3270: my %contrib=&Apache::lonnet::restore($symb,$env{'request.course.id'},
3271: $env{'course.'.$env{'request.course.id'}.'.domain'},
3272: $env{'course.'.$env{'request.course.id'}.'.num'});
3273: $attachmenturls = $contrib{$idx.':attachmenturl'};
3274: }
3275: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
3276: $attachmenturls);
3277: return OK;
3278: } elsif ($env{'form.export'}) {
3279: &Apache::loncommon::content_type($r,'text/html');
3280: $r->send_http_header;
3281: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($env{'form.export'});
3282: my $mode='board';
3283: my $status='OPEN';
3284: my $previous=$env{'form.previous'};
3285: if ($feedurl =~ /\.(problem|exam|quiz|assess|survey|form|library|task)$/) {
3286: $mode='problem';
3287: $status=$Apache::inputtags::status[-1];
3288: }
3289: my $discussion = &list_discussion($mode,$status,$symb);
3290: my $start_page =
3291: &Apache::loncommon::start_page('Resource Feedback and Discussion');
3292: my $end_page =
3293: &Apache::loncommon::end_page();
3294: $r->print($start_page.$discussion.$end_page);
3295: return OK;
3296: } else {
3297: # ------------------------------------------------------------- Normal feedback
3298: my $feedurl=$env{'form.postdata'};
3299: $feedurl=~s/^http\:\/\///;
3300: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
3301: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
3302: $feedurl=~s/\?.+$//;
3303:
3304: my $symb;
3305: if ($env{'form.replydisc'}) {
3306: $symb=(split(/\:\:\:/,$env{'form.replydisc'}))[0];
3307: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3308: $feedurl=&Apache::lonnet::clutter($url);
3309: } elsif ($env{'form.editdisc'}) {
3310: $symb=(split(/\:\:\:/,$env{'form.editdisc'}))[0];
3311: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3312: $feedurl=&Apache::lonnet::clutter($url);
3313: } elsif ($env{'form.origpage'}) {
3314: $symb="";
3315: } else {
3316: $symb=&Apache::lonnet::symbread($feedurl);
3317: }
3318: unless ($symb) {
3319: $symb=$env{'form.symb'};
3320: if ($symb) {
3321: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3322: $feedurl=&Apache::lonnet::clutter($url);
3323: }
3324: }
3325: &Apache::lonenc::check_decrypt(\$symb);
3326: my $goahead=1;
3327: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form|task)$/) {
3328: unless ($symb) { $goahead=0; }
3329: }
3330: # backward compatibility (bulletin boards used to be 'wrapped')
3331: &dewrapper(\$feedurl);
3332: if (!$goahead) {
3333: # Ambiguous Problem Resource
3334: $r->internal_redirect('/adm/ambiguous');
3335: return OK;
3336: }
3337: # Go ahead with feedback, no ambiguous reference
3338: unless (
3339: (
3340: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
3341: )
3342: ||
3343: ($env{'request.course.id'} && ($feedurl!~m:^/adm:))
3344: ||
3345: ($env{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
3346: ) {
3347: &Apache::loncommon::content_type($r,'text/html');
3348: $r->send_http_header;
3349: # Unable to give feedback
3350: &no_redirect_back($r,$feedurl);
3351: return OK;
3352: }
3353: # --------------------------------------------------- Print login screen header
3354: unless ($env{'form.sendit'}) {
3355: &Apache::loncommon::content_type($r,'text/html');
3356: $r->send_http_header;
3357: my $options=&screen_header($feedurl,$symb);
3358: if ($options) {
3359: &mail_screen($r,$feedurl,$options);
3360: } else {
3361: &fail_redirect($r,$feedurl);
3362: }
3363: return OK;
3364: }
3365:
3366: # Get previous user input
3367: my $prevattempts=&Apache::loncommon::get_previous_attempt(
3368: $symb,$env{'user.name'},$env{'user.domain'},
3369: $env{'request.course.id'});
3370:
3371: # Get output from resource
3372: my $usersaw=&resource_output($feedurl);
3373:
3374: # Get resource answer (need to allow student to view grades for this to work)
3375: &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
3376: my $useranswer=&Apache::loncommon::get_student_answers(
3377: $symb,$env{'user.name'},$env{'user.domain'},
3378: $env{'request.course.id'});
3379: &Apache::lonnet::delenv('allowed.vgr');
3380: # Get attachments, if any, and not too large
3381: my $attachmenturl='';
3382: if (($env{'form.origpage'}) || ($env{'form.editdisc'}) ||
3383: ($env{'form.replydisc'})) {
3384: my ($symb,$idx);
3385: if ($env{'form.replydisc'}) {
3386: ($symb,$idx)=split(/\:\:\:/,$env{'form.replydisc'});
3387: } elsif ($env{'form.editdisc'}) {
3388: ($symb,$idx)=split(/\:\:\:/,$env{'form.editdisc'});
3389: } elsif ($env{'form.origpage'}) {
3390: $symb = $env{'form.symb'};
3391: }
3392: &Apache::lonenc::check_decrypt(\$symb);
3393: my @currnewattach = ();
3394: my @deloldattach = ();
3395: my @keepold = ();
3396: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
3397: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3398: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
3399: } elsif ($env{'form.attachment.filename'}) {
3400: unless (length($env{'form.attachment'})>131072) {
3401: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback');
3402: }
3403: }
3404: # Filter HTML out of message (could be nasty)
3405: my $message=&clear_out_html($env{'form.comment'});
3406:
3407: # Assemble email
3408: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
3409: $usersaw,$useranswer);
3410:
3411: # Who gets this?
3412: my ($typestyle,%to) = &decide_receiver($feedurl);
3413:
3414: # Actually send mail
3415: my ($status,$numsent)=&send_msg(&clear_out_html($env{'form.subject'},
3416: undef,1),
3417: $feedurl,$email,$citations,
3418: $attachmenturl,%to);
3419:
3420: # Discussion? Store that.
3421:
3422: my $numpost=0;
3423: if ($env{'form.discuss'} || $env{'form.anondiscuss'}) {
3424: my $subject = &clear_out_html($env{'form.subject'},undef,1);
3425: my $anonmode=(defined($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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