1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.142 2004/11/19 19:43:05 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::lonhtmlcommon();
39: use Apache::lonnavmaps;
40: use Apache::lonenc();
41: use HTML::LCParser();
42: use Apache::lonspeller();
43: use Cwd;
44:
45: sub discussion_open {
46: my ($status,$symb)=@_;
47: if (defined($status) &&
48: !($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
49: || $status eq 'OPEN')) {
50: return 0;
51: }
52: my $close=&Apache::lonnet::EXT('resource.0.discussend',$symb);
53: if (defined($close) && $close ne '' && $close < time) {
54: return 0;
55: }
56: return 1;
57: }
58:
59: sub discussion_visible {
60: my ($status)=@_;
61: if (not &discussion_open($status)) {
62: my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
63: if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden)) {
64: if (!$ENV{'request.role.adv'}) { return 0; }
65: }
66: }
67: return 1;
68: }
69:
70: sub list_discussion {
71: my ($mode,$status,$ressymb)=@_;
72: my $outputtarget=$ENV{'form.grade_target'};
73: if (defined($ENV{'form.export'})) {
74: if($ENV{'form.export'}) {
75: $outputtarget = 'export';
76: }
77: }
78: if (not &discussion_visible($status)) { return ''; }
79: my @bgcols = ("#cccccc","#eeeeee");
80: my $discussiononly=0;
81: if ($mode eq 'board') { $discussiononly=1; }
82: unless ($ENV{'request.course.id'}) { return ''; }
83: my $crs='/'.$ENV{'request.course.id'};
84: my $cid=$ENV{'request.course.id'};
85: if ($ENV{'request.course.sec'}) {
86: $crs.='_'.$ENV{'request.course.sec'};
87: }
88: $crs=~s/\_/\//g;
89: unless ($ressymb) { $ressymb=&Apache::lonnet::symbread(); }
90: unless ($ressymb) { return ''; }
91: $ressymb=&wrap_symb($ressymb);
92: my $encsymb=&Apache::lonenc::check_encrypt($ressymb);
93: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
94: && ($ressymb=~/\.(problem|exam|quiz|assess|survey|form)$/));
95:
96: my %usernamesort = ();
97: my %namesort =();
98: my %subjectsort = ();
99:
100: # Get discussion display settings for this discussion
101: my $lastkey = $ressymb.'_lastread';
102: my $showkey = $ressymb.'_showonlyunread';
103: my $markkey = $ressymb.'_showonlyunmark',
104: my $visitkey = $ressymb.'_visit';
105: my $ondispkey = $ressymb.'_markondisp';
106: my $userpickkey = $ressymb.'_userpick';
107: my $toggkey = $ressymb.'_readtoggle';
108: my $readkey = $ressymb.'_read';
109: $ressymb=$encsymb;
110: my %dischash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$lastkey,$showkey,$markkey,$visitkey,$ondispkey,$userpickkey,$toggkey,$readkey],$ENV{'user.domain'},$ENV{'user.name'});
111: my %discinfo = ();
112: my $showonlyunread = 0;
113: my $showunmark = 0;
114: my $markondisp = 0;
115: my $prevread = 0;
116: my $previous = 0;
117: my $visit = 0;
118: my $newpostsflag = 0;
119: my @posters = split/\&/,$dischash{$userpickkey};
120:
121: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
122: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous','sortposts','rolefilter','statusfilter','sectionpick','totposters']);
123: my $sortposts = $ENV{'form.sortposts'};
124: my $statusfilter = $ENV{'form.statusfilter'};
125: my $sectionpick = $ENV{'form.sectionpick'};
126: my $totposters = $ENV{'form.totposters'};
127: $previous = $ENV{'form.previous'};
128: if ($previous > 0) {
129: $prevread = $previous;
130: } elsif (defined($dischash{$lastkey})) {
131: unless ($dischash{$lastkey} eq '') {
132: $prevread = $dischash{$lastkey};
133: }
134: }
135:
136: # Get information about students and non-students in course for filtering display of posts
137: my %roleshash = ();
138: my %roleinfo = ();
139: if ($ENV{'form.rolefilter'}) {
140: %roleshash = &Apache::lonnet::dump('nohist_userroles',$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
141: foreach (keys %roleshash) {
142: my ($role,$uname,$udom,$sec) = split/:/,$_;
143: my ($end,$start) = split/:/,$roleshash{$_};
144: my $now = time;
145: my $status = 'Active';
146: if (($now < $start) || ($end > 0 && $now > $end)) {
147: $status = 'Expired';
148: }
149: push @{$roleinfo{$uname.':'.$udom}}, $role.':'.$sec.':'.$status;
150: }
151: my ($classlist) = &Apache::loncoursedata::get_classlist(
152: $ENV{'request.course.id'},
153: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
154: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
155: my $sec_index = &Apache::loncoursedata::CL_SECTION();
156: my $status_index = &Apache::loncoursedata::CL_STATUS();
157: while (my ($student,$data) = each %$classlist) {
158: my ($section,$status) = ($data->[$sec_index],
159: $data->[$status_index]);
160: push @{$roleinfo{$student}}, 'st:'.$section.':'.$status;
161: }
162: }
163:
164: # Get discussion display default settings for user
165: if ($ENV{'environment.discdisplay'} eq 'unread') {
166: $showonlyunread = 1;
167: }
168: if ($ENV{'environment.discmarkread'} eq 'ondisp') {
169: $markondisp = 1;
170: }
171:
172: # Override user's default if user specified display setting for this discussion
173: if (defined($dischash{$ondispkey})) {
174: unless ($dischash{$ondispkey} eq '') {
175: $markondisp = $dischash{$ondispkey};
176: }
177: }
178: if ($markondisp) {
179: $discinfo{$lastkey} = time;
180: }
181:
182: if (defined($dischash{$showkey})) {
183: unless ($dischash{$showkey} eq '') {
184: $showonlyunread = $dischash{$showkey};
185: }
186: }
187:
188: if (defined($dischash{$markkey})) {
189: unless ($dischash{$markkey} eq '') {
190: $showunmark = $dischash{$markkey};
191: }
192: }
193:
194: if (defined($dischash{$visitkey})) {
195: unless ($dischash{$visitkey} eq '') {
196: $visit = $dischash{$visitkey};
197: }
198: }
199: $visit ++;
200:
201: my $seeid=&Apache::lonnet::allowed('rin',$crs);
202: my @discussionitems=();
203: my %shown = ();
204: my @posteridentity=();
205:
206: my $current=0;
207: my $visible=0;
208: my @depth=();
209: my @replies = ();
210: my %alldiscussion=();
211: my %imsitems=();
212: my %imsfiles=();
213: my %notshown = ();
214: my %newitem = ();
215: my $maxdepth=0;
216:
217: my $target='';
218: unless ($ENV{'browser.interface'} eq 'textual' ||
219: $ENV{'environment.remote'} eq 'off' ) {
220: $target='target="LONcom"';
221: }
222:
223: my $now = time;
224: $discinfo{$visitkey} = $visit;
225:
226: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
227: &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,$totposters,$ENV{'form.rolefilter'},$sectionpick,$statusfilter,$toggkey,$outputtarget);
228:
229: my $discussion='';
230: my $manifestfile;
231: my $manifestok=0;
232: my $tempexport;
233: my $imsresources;
234: my $copyresult;
235:
236: my $function = &Apache::loncommon::get_users_function();
237: my $color = &Apache::loncommon::designparm($function.'.tabbg',
238: $ENV{'user.domain'});
239: my %lt = &Apache::lonlocal::texthash(
240: 'cuse' => 'Current discussion settings',
241: 'allposts' => 'All posts',
242: 'unread' => 'New posts only',
243: 'unmark' => 'Unread only',
244: 'ondisp' => 'Once displayed',
245: 'onmark' => 'Once marked not NEW',
246: 'toggoff' => 'Off',
247: 'toggon' => 'On',
248: 'disa' => 'Posts to be displayed',
249: 'npce' => 'Posts cease to be marked "NEW"',
250: 'epcb' => 'Each post can be toggled read/unread',
251: 'chgt' => 'Change',
252: 'disp' => 'Display',
253: 'nolo' => 'Not new',
254: 'togg' => 'Toggle read/unread',
255: );
256:
257: my $currdisp = $lt{'allposts'};
258: my $currmark = $lt{'onmark'};
259: my $currtogg = $lt{'toggoff'};
260: my $dispchange = $lt{'unread'};
261: my $markchange = $lt{'ondisp'};
262: my $toggchange = $lt{'toggon'};
263: my $chglink = '/adm/feedback?modifydisp='.$ressymb;
264: my $displinkA = 'onlyunread';
265: my $displinkB = 'onlyunmark';
266: my $marklink = 'markondisp';
267: my $togglink = 'toggon';
268:
269: if ($markondisp) {
270: $currmark = $lt{'ondisp'};
271: $markchange = $lt{'onmark'};
272: $marklink = 'markonread';
273: }
274:
275: if ($showonlyunread) {
276: $currdisp = $lt{'unread'};
277: $dispchange = $lt{'allposts'};
278: $displinkA = 'allposts';
279: }
280:
281: if ($showunmark) {
282: $currdisp = $lt{'unmark'};
283: $dispchange = $lt{'unmark'};
284: $displinkA='allposts';
285: $displinkB='onlyunread';
286: $showonlyunread = 0;
287: }
288:
289: if ($dischash{$toggkey}) {
290: $currtogg = $lt{'toggon'};
291: $toggchange = $lt{'toggoff'};
292: $togglink = 'toggoff';
293: }
294:
295: $chglink .= '&changes='.$displinkA.'_'.$displinkB.'_'.$marklink.'_'.$togglink;
296:
297: if ($newpostsflag) {
298: $chglink .= '&previous='.$prevread;
299: }
300:
301: if ($visible) {
302: # Print the discusssion
303: if ($outputtarget eq 'tex') {
304: $discussion.='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
305: '\textbf{DISCUSSIONS}\makebox[2 cm][b]{\hrulefill}'.
306: '\vskip 0 mm\noindent\textbf{'.$lt{'cuse'}.'}:\vskip 0 mm'.
307: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
308: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}</tex>';
309: } elsif ($outputtarget eq 'export') {
310: # Create temporary directory if this is an export
311: my $now = time;
312: $tempexport = $Apache::lonnet::perlvar{'lonDaemons'}.'/tmp/ims_exports';
313: if (!-e $tempexport) {
314: mkdir($tempexport,0700);
315: }
316: $tempexport .= '/'.$now;
317: if (!-e $tempexport) {
318: mkdir($tempexport,0700);
319: }
320: $tempexport .= '/'.$ENV{'user.domain'}.'_'.$ENV{'user.name'};
321: if (!-e $tempexport) {
322: mkdir($tempexport,0700);
323: }
324: # open manifest file
325: my $manifest = '/imsmanifest.xml';
326: my $manifestfilename = $tempexport.$manifest;
327: if ($manifestfile = Apache::File->new('>'.$manifestfilename)) {
328: $manifestok=1;
329: print $manifestfile qq|
330: <?xml version="1.0" encoding="UTF-8"?>
331: <manifest xmlns="http://www.imsglobal.org/xsd/imscp_v1p1" xmlns:imsmd="http://www.imsglobal.org/xsd/imsmd_v1p2"
332: xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
333: identifier="MANIFEST-$ressymb" xsi:schemaLocation="http://www.imsglobal.org/xsd/imscp_v1p1
334: imscp_v1p1.xsd http://www.imsglobal.org/xsd/imsmd_v1p2 imsmd_v1p2p2.xsd">
335: <organizations default="$ressymb">
336: <organization identifier="$ressymb">
337: <title>Discussion for $ressymb</title>\n|;
338: } else {
339: $discussion .= 'An error occurred opening the manifest file.<br />';
340: }
341: } else {
342: my $colspan=$maxdepth+1;
343: $discussion.= qq|
344: <script>
345: function studentdelete (symb,idx,newflag,previous) {
346: var symbparm = symb+':::'+idx
347: var prevparm = ""
348: if (newflag == 1) {
349: prevparm = "&previous="+previous
350: }
351: 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")) {
352: document.location.href = "/adm/feedback?hide="+symbparm+prevparm
353: }
354: }
355: </script>
356: |;
357: $discussion.='<form name="readchoices" method="post" action="/adm/feedback?chgreads='.$ressymb.'" ><table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
358: $discussion .='<tr><td bgcolor="#DDDDBB" colspan="'.$colspan.'">'.
359: '<table border="0" width="100%" bgcolor="#DDDDBB"><tr>';
360: if ($visible>2) {
361: $discussion.='<td align="left">'.
362: '<a href="/adm/feedback?cmd=threadedon&symb='.$ressymb;
363: if ($newpostsflag) {
364: $discussion .= '&previous='.$prevread;
365: }
366: $discussion .='">'.&mt('Threaded View').'</a> '.
367: '<a href="/adm/feedback?cmd=threadedoff&symb='.$ressymb;
368: if ($newpostsflag) {
369: $discussion .= '&previous='.$prevread;
370: }
371: $discussion .='">'.&mt('Chronological View').'</a>
372: <a href= "/adm/feedback?cmd=sortfilter&symb='.$ressymb;
373: if ($newpostsflag) {
374: $discussion .= '&previous='.$prevread;
375: }
376: $discussion .='">'.&mt('Sorting/Filtering options').'</a>  ';
377: } else {
378: $discussion .= '<td align="left">';
379: }
380: $discussion .='<a href= "/adm/feedback?export='.$ressymb;
381: if ($newpostsflag) {
382: $discussion .= '&previous='.$prevread;
383: }
384: $discussion .= '">'.&mt('Export').'?</a> </td>';
385: if ($newpostsflag) {
386: if (!$markondisp) {
387: $discussion .='<td align="right"><a href="/adm/feedback?markread=1&symb='.$ressymb.'">'.&mt('Mark NEW posts no longer new').'</a> ';
388: } else {
389: $discussion .= '<td> </td>';
390: }
391: } else {
392: $discussion .= '<td> </td>';
393: }
394: $discussion .= '</tr></table></td></tr>';
395:
396: my $numhidden = keys %notshown;
397: if ($numhidden > 0) {
398: my $colspan = $maxdepth+1;
399: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
400: '<a href="/adm/feedback?allposts='.$ressymb;
401: if ($newpostsflag) {
402: $discussion .= '&previous='.$prevread;
403: }
404: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
405: $numhidden.' ';
406: if ($showunmark) {
407: $discussion .= &mt('posts previously marked read');
408: } else {
409: $discussion .= &mt('previously viewed posts');
410: }
411: $discussion .= '<br/></td></tr>';
412: }
413: }
414:
415: # Choose sort mechanism
416: my @showposts = ();
417: if ($sortposts eq 'descdate') {
418: @showposts = (sort { $b <=> $a } keys %alldiscussion);
419: } elsif ($sortposts eq 'thread') {
420: @showposts = (sort { $a <=> $b } keys %alldiscussion);
421: } elsif ($sortposts eq 'subject') {
422: foreach (sort keys %subjectsort) {
423: push @showposts, @{$subjectsort{$_}};
424: }
425: } elsif ($sortposts eq 'username') {
426: foreach my $domain (sort keys %usernamesort) {
427: foreach (sort keys %{$usernamesort{$domain}}) {
428: push @showposts, @{$usernamesort{$domain}{$_}};
429: }
430: }
431: } elsif ($sortposts eq 'lastfirst') {
432: foreach my $last (sort keys %namesort) {
433: foreach (sort keys %{$namesort{$last}}) {
434: push @showposts, @{$namesort{$last}{$_}};
435: }
436: }
437: } else {
438: $sortposts = 'ascdate';
439: @showposts = (sort { $a <=> $b } keys %alldiscussion);
440: }
441: my $currdepth = 0;
442: my $firstidx = $alldiscussion{$showposts[0]};
443: foreach (@showposts) {
444: unless (($sortposts eq 'thread') || ($sortposts eq 'ascdate' && $ENV{'environment.threadeddiscussion'}) || ($outputtarget eq 'export')) {
445: $alldiscussion{$_} = $_;
446: }
447: unless ( ($notshown{$alldiscussion{$_}} eq '1') || ($shown{$alldiscussion{$_}} == 0) ) {
448: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
449: $discussion.="\n<tr>";
450: }
451: my $thisdepth=$depth[$alldiscussion{$_}];
452: if ($outputtarget ne 'tex' && $outputtarget ne 'export') {
453: for (1..$thisdepth) {
454: $discussion.='<td> </td>';
455: }
456: }
457: my $colspan=$maxdepth-$thisdepth+1;
458: if ($outputtarget eq 'tex') {
459: #cleanup block
460: $discussionitems[$alldiscussion{$_}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
461: $discussionitems[$alldiscussion{$_}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
462: my $threadinsert='';
463: if ($thisdepth > 0) {
464: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
465: }
466: $discussionitems[$alldiscussion{$_}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
467: $discussionitems[$alldiscussion{$_}]=~s/<a([^>]+)>(Edit|Hide|Delete|Reply|Submissions)<\/a>//g;
468: $discussionitems[$alldiscussion{$_}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
469:
470: $discussionitems[$alldiscussion{$_}]='<tex>\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}</tex>'.$discussionitems[$alldiscussion{$_}];
471: $discussion.=$discussionitems[$alldiscussion{$_}];
472: } elsif ($outputtarget eq 'export') {
473: my $postfilename = $alldiscussion{$_}.'-'.$imsitems{$alldiscussion{$_}}{'timestamp'}.'.html';
474: if ($manifestok) {
475: if (($depth[$alldiscussion{$_}] <= $currdepth) && ($alldiscussion{$_} != $firstidx)) {
476: print $manifestfile ' </item>'."\n";
477: }
478: $currdepth = $depth[$alldiscussion{$_}];
479: print $manifestfile "\n".
480: '<item identifier="ITEM-'.$ressymb.'-'.$alldiscussion{$_}.'" isvisible="'.
481: $imsitems{$alldiscussion{$_}}{'isvisible'}.'" identifieref="RES-'.$ressymb.'-'.$alldiscussion{$_}.'">'.
482: '<title>'.$imsitems{$alldiscussion{$_}}{'title'}.'</title>';
483: $imsresources .= "\n".
484: '<resource identifier="RES-'.$ressymb.'-'.$alldiscussion{$_}.'" type="webcontent" href="'.$postfilename.'">'.
485: '<file href="'.$alldiscussion{$_}.'.html">'."\n".
486: $imsfiles{$alldiscussion{$_}}{$imsitems{$alldiscussion{$_}}{'currversion'}}."\n".
487: '</resource>';
488: }
489: my $postingfile;
490: my $postingfilename = $tempexport.'/'.$postfilename;
491: if ($postingfile = Apache::File->new('>'.$postingfilename)) {
492: print $postingfile '<html><head><title>Discussion Post</title></head><body>'.
493: $imsitems{$alldiscussion{$_}}{'title'}.' '.
494: $imsitems{$alldiscussion{$_}}{'sender'}.
495: $imsitems{$alldiscussion{$_}}{'timestamp'}.'<br /><br />'.
496: $imsitems{$alldiscussion{$_}}{'message'}.'<br />'.
497: $imsitems{$alldiscussion{$_}}{'attach'}.'</body></html>'."\n";
498: close($postingfile);
499: } else {
500: $discussion .= 'An error occurred opening the export file for posting '.$alldiscussion{$_}.'<br />';
501: }
502: $copyresult.=&replicate_attachments($imsitems{$alldiscussion{$_}}{'allattachments'},$tempexport);
503: } else {
504: $discussion.='<td bgcolor="'.$bgcols[$newitem{$alldiscussion{$_}}].
505: '" colspan="'.$colspan.'">'. $discussionitems[$alldiscussion{$_}].
506: '</td></tr>';
507: }
508: }
509: }
510: unless ($outputtarget eq 'tex' || $outputtarget eq 'export') {
511: my $colspan=$maxdepth+1;
512: $discussion .= <<END;
513: <tr bgcolor="#FFFFFF">
514: <td colspan="$colspan" valign="top">
515: <table border="0" bgcolor="#FFFFFF" width="100%" cellspacing="2" cellpadding="2">
516: <tr>
517: <td align="left">
518: <table border="0" cellpadding="0" cellspacing="4">
519: <tr>
520: <td>
521: <font size="-1"><b>$lt{'cuse'}</b>:</td>
522: <td> </td>
523: <td><font size="-1">
524: END
525: if ($newpostsflag) {
526: $discussion .=
527: '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'nolo'}.' - <i>'.$currmark.'</i>';
528: if ($dischash{$toggkey}) {
529: $discussion .= ' 3. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
530: }
531: } else {
532: if ($dischash{$toggkey}) {
533: $discussion .= '1. '.$lt{'disp'}.' - <i>'.$currdisp.'</i> 2. '.$lt{'togg'}.' - <i>'.$currtogg.'</i>';
534: } else {
535: $discussion .=
536: $lt{'disp'}.' - <i>'.$currdisp.'</i>';
537: }
538: }
539: $discussion .= <<END;
540: </font></td>
541: <td> </td>
542: <td>
543: <font size="-1"><b><a href="$chglink">$lt{'chgt'}</a>?</font></b>
544: </td>
545: </tr>
546: </table>
547: </td>
548: END
549: if ($dischash{$toggkey}) {
550: my $storebutton = &mt('Store read/unread changes');
551: $discussion.='<td align="right">'.
552: '<input type="hidden" name="discsymb" value="'.$ressymb.'">'."\n".
553: '<input type="button" name="readoptions" value="'.$storebutton.'"'.
554: ' onClick="this.form.submit();">'."\n".
555: '</td>';
556: }
557: $discussion .= (<<END);
558: </tr>
559: </table>
560: </td>
561: </tr>
562: </table>
563: <br /><br /></form>
564: END
565: }
566: if ($outputtarget eq 'export') {
567: if ($manifestok) {
568: while ($currdepth > 0) {
569: print $manifestfile " </item>\n";
570: $currdepth --;
571: }
572: print $manifestfile qq|
573: </organization>
574: </organizations>
575: <resources>
576: $imsresources
577: </resources>
578: </manifest>
579: |;
580: close($manifestfile);
581:
582: #Create zip file in prtspool
583:
584: my $imszipfile = '/prtspool/'.
585: $ENV{'user.name'}.'_'.$ENV{'user.domain'}.'_'.
586: time.'_'.rand(1000000000).'.zip';
587: # zip can cause an sh launch which can pass along all of %ENV
588: # which can be too large for /bin/sh to handle
589: my %oldENV=%ENV;
590: undef(%ENV);
591: my $cwd = &getcwd();
592: my $imszip = '/home/httpd/'.$imszipfile;
593: chdir $tempexport;
594: open(OUTPUT, "zip -r $imszip * 2> /dev/null |");
595: close(OUTPUT);
596: chdir $cwd;
597: %ENV=%oldENV;
598: undef(%oldENV);
599: $discussion .= 'Download the zip file from <a href="'.$imszipfile.'">Discussion Posting Archive</a><br />';
600: if ($copyresult) {
601: $discussion .= 'The following errors occurred during export - <br />'.$copyresult;
602: }
603: } else {
604: $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 />';
605: }
606: return $discussion;
607: }
608: }
609: if ($discussiononly) {
610: my $now = time;
611: my $attachnum = 0;
612: my $newattachmsg = '';
613: my @currnewattach = ();
614: my @currdelold = ();
615: my $comment = '';
616: my $subject = '';
617: if ($ENV{'form.origpage'}) {
618: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['addnewattach','deloldattach','delnewattach','timestamp','idx','subject','comment']);
619: $subject = &Apache::lonnet::unescape($ENV{'form.subject'});
620: $comment = &Apache::lonnet::unescape($ENV{'form.comment'});
621: my @keepold = ();
622: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
623: if (@currnewattach > 0) {
624: $attachnum += @currnewattach;
625: }
626: }
627: if (&discussion_open($status)) {
628: $discussion.=(<<ENDDISCUSS);
629: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
630: <input type="submit" name="discuss" value="Post Discussion" />
631: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
632: <input type="hidden" name="symb" value="$ressymb" />
633: <input type="hidden" name="sendit" value="true" />
634: <input type="hidden" name="timestamp" value="$now" />
635: <br /><a name="newpost"></a>
636: <font size="1">Note: in anonymous discussion, your name is visible only
637: to course faculty</font><br />
638: <b>Title:</b> <input type="text" name="subject" value="$subject" size="30" /><br /><br />
639: <textarea name="comment" cols="80" rows="14" wrap="hard">$comment</textarea>
640: ENDDISCUSS
641: if ($ENV{'form.origpage'}) {
642: $discussion.='<input type="hidden" name="origpage" value="'.$ENV{'form.origpage'}.'" />'."\n";
643: foreach (@currnewattach) {
644: $discussion.='<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n";
645: }
646: }
647: $discussion.="</form>\n";
648: if ($outputtarget ne 'tex') {
649: $discussion.=&generate_attachments_button('',$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,'',$mode);
650: if (@currnewattach > 0) {
651: $newattachmsg .= '<b>New attachments</b><br />';
652: if (@currnewattach > 1) {
653: $newattachmsg .= '<ol>';
654: foreach my $item (@currnewattach) {
655: $item =~ m#.*/([^/]+)$#;
656: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
657: }
658: $newattachmsg .= '</ol>'."\n";
659: } else {
660: $currnewattach[0] =~ m#.*/([^/]+)$#;
661: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
662: }
663: }
664: $discussion.=$newattachmsg;
665: $discussion.=&generate_preview_button();
666: }
667: }
668: } else {
669: if (&discussion_open($status) &&
670: &Apache::lonnet::allowed('pch',
671: $ENV{'request.course.id'}.
672: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
673: if ($outputtarget ne 'tex') {
674: $discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='.
675: $ressymb.':::" '.$target.'>'.
676: '<img src="/adm/lonMisc/chat.gif" border="0" />'.
677: &mt('Post Discussion').'</a></td></tr></table>';
678: }
679: }
680: }
681: return $discussion;
682: }
683:
684: sub build_posting_display {
685: my ($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) = @_;
686:
687: my @original=();
688: my @index=();
689: my $symb=&Apache::lonenc::check_decrypt($ressymb);
690: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
691: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
692: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
693:
694: if ($contrib{'version'}) {
695: my $oldest = $contrib{'1:timestamp'};
696: if ($prevread eq '0') {
697: $prevread = $oldest-1;
698: }
699: for (my $id=1;$id<=$contrib{'version'};$id++) {
700: my $idx=$id;
701: my $posttime = $contrib{$idx.':timestamp'};
702: if ($prevread <= $posttime) {
703: $$newpostsflag = 1;
704: }
705: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
706: my $studenthidden=($contrib{'studenthidden'}=~/\.$idx\./);
707: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
708: my $origindex='0.';
709: my $numoldver=0;
710: if ($contrib{$idx.':replyto'}) {
711: if ( (($ENV{'environment.threadeddiscussion'}) && (($sortposts eq '') || ($sortposts eq 'ascdate'))) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
712: # this is a follow-up message
713: $original[$idx]=$original[$contrib{$idx.':replyto'}];
714: $$depth[$idx]=$$depth[$contrib{$idx.':replyto'}]+1;
715: $origindex=$index[$contrib{$idx.':replyto'}];
716: if ($$depth[$idx]>$$maxdepth) { $$maxdepth=$$depth[$idx]; }
717: } else {
718: $original[$idx]=0;
719: $$depth[$idx]=0;
720: }
721: } else {
722: # this is an original message
723: $original[$idx]=0;
724: $$depth[$idx]=0;
725: }
726: if ($$replies[$$depth[$idx]]) {
727: $$replies[$$depth[$idx]]++;
728: } else {
729: $$replies[$$depth[$idx]]=1;
730: }
731: unless ((($hidden) && (!$seeid)) || ($deleted)) {
732: $$visible++;
733: if ($contrib{$idx.':history'}) {
734: if ($contrib{$idx.':history'} =~ /:/) {
735: my @oldversions = split/:/,$contrib{$idx.':history'};
736: $numoldver = @oldversions;
737: } else {
738: $numoldver = 1;
739: }
740: }
741: $$current = $numoldver;
742: my %messages = ();
743: my %subjects = ();
744: my %attachtxt = ();
745: my %allattachments = ();
746: my ($screenname,$plainname);
747: my $sender = &mt('Anonymous');
748: my ($message,$subject,$vgrlink,$ctlink);
749: &get_post_contents(\%contrib,$idx,$seeid,$outputtarget,\%messages,\%subjects,\%allattachments,\%attachtxt,$imsfiles,\$screenname,\$plainname,$numoldver);
750:
751:
752: # Set up for sorting by subject
753: unless ($outputtarget eq 'export') {
754: $message=$messages{$numoldver};
755: $message.=$attachtxt{$numoldver};
756: $subject=$subjects{$numoldver};
757: if ($message) {
758: if ($hidden) {
759: $message='<font color="#888888">'.$message.'</font>';
760: if ($studenthidden) {
761: $message .='<br /><br />Deleted by poster (student).';
762: }
763: }
764:
765: if ($subject eq '') {
766: if (defined($$subjectsort{'__No subject'})) {
767: push @{$$subjectsort{'__No subject'}}, $idx;
768: } else {
769: @{$$subjectsort{'__No subject'}} = ("$idx");
770: }
771: } else {
772: if (defined($$subjectsort{$subject})) {
773: push @{$$subjectsort{$subject}}, $idx;
774: } else {
775: @{$$subjectsort{$subject}} = ("$idx");
776: }
777: }
778: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
779: $sender=&Apache::loncommon::aboutmewrapper(
780: $plainname,
781: $contrib{$idx.':sendername'},
782: $contrib{$idx.':senderdomain'}).' ('.
783: $contrib{$idx.':sendername'}.' at '.
784: $contrib{$idx.':senderdomain'}.')';
785: if ($contrib{$idx.':anonymous'}) {
786: $sender.=' ['.&mt('anonymous').'] '.
787: $screenname;
788: }
789:
790: # Set up for sorting by domain, then username
791: unless (defined($$usernamesort{$contrib{$idx.':senderdomain'}})) {
792: %{$$usernamesort{$contrib{$idx.':senderdomain'}}} = ();
793: }
794: if (defined($$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}})) {
795: push @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}}, $idx;
796: } else {
797: @{$$usernamesort{$contrib{$idx.':senderdomain'}}{$contrib{$idx.':sendername'}}} = ("$idx");
798: }
799: # Set up for sorting by last name, then first name
800: my %names = &Apache::lonnet::get('environment',
801: ['firstname','lastname'],$contrib{$idx.':senderdomain'},
802: ,$contrib{$idx.':sendername'});
803: my $lastname = $names{'lastname'};
804: my $firstname = $names{'firstname'};
805: if ($lastname eq '') {
806: $lastname = '_';
807: }
808: if ($firstname eq '') {
809: $firstname = '_';
810: }
811: unless (defined($$namesort{$lastname})) {
812: %{$$namesort{$lastname}} = ();
813: }
814: if (defined($$namesort{$lastname}{$firstname})) {
815: push @{$$namesort{$lastname}{$firstname}}, $idx;
816: } else {
817: @{$$namesort{$lastname}{$firstname}} = ("$idx");
818: }
819: if ($ENV{'course.'.$ENV{'request.course.id'}.'.allow_discussion_post_editing'} =~ m/yes/i) {
820: if (($ENV{'user.domain'} eq $contrib{$idx.':senderdomain'}) && ($ENV{'user.name'} eq $contrib{$idx.':sendername'})) {
821: $sender.=' <a href="/adm/feedback?editdisc='.
822: $ressymb.':::'.$idx;
823: if ($newpostsflag) {
824: $sender .= '&previous='.$prevread;
825: }
826: $sender .= '" '.$target.'>'.&mt('Edit').'</a>';
827: unless ($seeid) {
828: $sender.=" <a href=\"javascript:studentdelete('$ressymb','$idx','$newpostsflag','$prevread')";
829: $sender .= '">'.&mt('Delete').'</a>';
830: }
831: }
832: }
833: if ($seeid) {
834: if ($hidden) {
835: unless ($studenthidden) {
836: $sender.=' <a href="/adm/feedback?unhide='.
837: $ressymb.':::'.$idx;
838: if ($newpostsflag) {
839: $sender .= '&previous='.$prevread;
840: }
841: $sender .= '">'.&mt('Make Visible').'</a>';
842: }
843: } else {
844: $sender.=' <a href="/adm/feedback?hide='.
845: $ressymb.':::'.$idx;
846: if ($newpostsflag) {
847: $sender .= '&previous='.$prevread;
848: }
849: $sender .= '">'.&mt('Hide').'</a>';
850: }
851: $sender.=' <a href="/adm/feedback?deldisc='.
852: $ressymb.':::'.$idx;
853: if ($newpostsflag) {
854: $sender .= '&previous='.$prevread;
855: }
856: $sender .= '">'.&mt('Delete').'</a>';
857: }
858: } else {
859: if ($screenname) {
860: $sender='<i>'.$screenname.'</i>';
861: }
862: # Set up for sorting by domain, then username for anonymous
863: unless (defined($$usernamesort{'__anon'})) {
864: %{$$usernamesort{'__anon'}} = ();
865: }
866: if (defined($$usernamesort{'__anon'}{'__anon'})) {
867: push @{$$usernamesort{'__anon'}{'__anon'}}, $idx;
868: } else {
869: @{$$usernamesort{'__anon'}{'__anon'}} = ("$idx");
870: }
871: # Set up for sorting by last name, then first name for anonymous
872: unless (defined($$namesort{'__anon'})) {
873: %{$$namesort{'__anon'}} = ();
874: }
875: if (defined($$namesort{'__anon'}{'__anon'})) {
876: push @{$$namesort{'__anon'}{'__anon'}}, $idx;
877: } else {
878: @{$$namesort{'__anon'}{'__anon'}} = ("$idx");
879: }
880: }
881: if (&discussion_open($status) &&
882: &Apache::lonnet::allowed('pch',
883: $ENV{'request.course.id'}.
884: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
885: $sender.=' <a href="/adm/feedback?replydisc='.
886: $ressymb.':::'.$idx;
887: if ($newpostsflag) {
888: $sender .= '&previous='.$prevread;
889: }
890: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
891: }
892: if ($viewgrades) {
893: $vgrlink=&Apache::loncommon::submlink('Submissions',
894: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$ressymb);
895: }
896: if ($$dischash{$readkey}=~/\.$idx\./) {
897: $ctlink = '<b>'.&mt('Mark unread').'?</b> <input type="checkbox" name="postunread_'.$idx.'" />';
898: } else {
899: $ctlink = '<b>'.&mt('Mark read').'?</b> <input type="checkbox" name="postread_'.$idx.'" />';
900: }
901: }
902: #figure out at what position this needs to print
903: }
904: if ($outputtarget eq 'export' || $message) {
905: my $thisindex=$idx;
906: if ( (($ENV{'environment.threadeddiscussion'}) && (($sortposts eq '') || ($sortposts eq 'ascdate'))) || ($sortposts eq 'thread') || ($outputtarget eq 'export')) {
907: $thisindex=$origindex.substr('00'.$$replies[$$depth[$idx]],-2,2);
908: }
909: $$alldiscussion{$thisindex}=$idx;
910: $$shown{$idx} = 0;
911: $index[$idx]=$thisindex;
912: }
913: if ($outputtarget eq 'export') {
914: %{$$imsitems{$idx}} = ();
915: $$imsitems{$idx}{'isvisible'}='true';
916: if ($hidden) {
917: $$imsitems{$idx}{'isvisible'}='false';
918: }
919: $$imsitems{$idx}{'title'}=$subjects{$numoldver};
920: $$imsitems{$idx}{'message'}=$messages{$numoldver};
921: $$imsitems{$idx}{'attach'}=$attachtxt{$numoldver};
922: $$imsitems{$idx}{'timestamp'}=$contrib{$idx.':timestamp'};
923: $$imsitems{$idx}{'sender'}=$plainname.' ('.
924: $contrib{$idx.':sendername'}.' at '.
925: $contrib{$idx.':senderdomain'}.')';
926: $$imsitems{$idx}{'isanonymous'}='false';
927: if ($contrib{$idx.':anonymous'}) {
928: $$imsitems{$idx}{'isanonymous'}='true';
929: }
930: $$imsitems{$idx}{'currversion'}=$numoldver;
931: %{$$imsitems{$idx}{'allattachments'}}=%allattachments;
932: unless ($messages{$numoldver} eq '' && $attachtxt{$numoldver} eq '') {
933: $$shown{$idx} = 1;
934: }
935: } else {
936: if ($message) {
937: my $spansize = 2;
938: if ($showonlyunread && $prevread > $posttime) {
939: $$notshown{$idx} = 1;
940: } elsif ($showunmark && $$dischash{$readkey}=~/\.$idx\./) {
941: $$notshown{$idx} = 1;
942: } else {
943: # apply filters
944: my $uname = $contrib{$idx.':sendername'};
945: my $udom = $contrib{$idx.':senderdomain'};
946: my $poster = $uname.':'.$udom;
947: my $rolematch = '';
948: my $skiptest = 1;
949: if ($totposters > 0) {
950: if (grep/^$poster$/,@{$posters}) {
951: $$shown{$idx} = 1;
952: }
953: } else {
954: if ($rolefilter) {
955: if ($rolefilter eq 'all') {
956: $rolematch = '([^:]+)';
957: } else {
958: $rolematch = $rolefilter;
959: $skiptest = 0;
960: }
961: }
962: if ($sectionpick) {
963: if ($sectionpick eq 'all') {
964: $rolematch .= ':([^:]*)';
965: } else {
966: $rolematch .= ':'.$sectionpick;
967: $skiptest = 0;
968: }
969: }
970: if ($statusfilter) {
971: if ($statusfilter eq 'all') {
972: $rolematch .= ':([^:]+)';
973: } else {
974: $rolematch .= ':'.$statusfilter;
975: $skiptest = 0;
976: }
977: }
978: if ($skiptest) {
979: $$shown{$idx} = 1;
980: } else {
981: foreach my $role (@{$$roleinfo{$poster}}) {
982: if ($role =~ m/^$rolematch$/) {
983: $$shown{$idx} = 1;
984: last;
985: }
986: }
987: }
988: }
989: }
990: unless ($$notshown{$idx} == 1) {
991: if ($prevread > 0 && $prevread <= $posttime) {
992: $$newitem{$idx} = 1;
993: $$discussionitems[$idx] .= '
994: <p><table border="0" width="100%">
995: <tr><td align="left"><font color="#FF0000"><b>NEW</b></font></td>';
996: } else {
997: $$newitem{$idx} = 0;
998: $$discussionitems[$idx] .= '
999: <p><table border="0" width="100%">
1000: <tr><td align="left"> </td>';
1001: }
1002: $$discussionitems[$idx] .= '<td align ="left"> '.
1003: '<b>'.$subject.'</b> '.
1004: $sender.'</b> '.$vgrlink.' ('.
1005: &Apache::lonlocal::locallocaltime($posttime).')</td>';
1006: if ($$dischash{$toggkey}) {
1007: $$discussionitems[$idx].='<td align="right"> '.
1008: $ctlink.'</td>';
1009: }
1010: $$discussionitems[$idx].= '</tr></table><blockquote>'.
1011: $message.'</blockquote></p>';
1012: if ($contrib{$idx.':history'}) {
1013: my @postversions = ();
1014: $$discussionitems[$idx] .= &mt('This post has been edited by the author.');
1015: if ($seeid) {
1016: $$discussionitems[$idx] .= ' <a href="/adm/feedback?allversions='.$ressymb.':::'.$idx.'">'.&mt('Display all versions').'</a>';
1017: }
1018: $$discussionitems[$idx].='<br/>'.&mt('Earlier version(s) were posted on: ');
1019: if ($contrib{$idx.':history'} =~ m/:/) {
1020: @postversions = split/:/,$contrib{$idx.':history'};
1021: } else {
1022: @postversions = ("$contrib{$idx.':history'}");
1023: }
1024: for (my $i=0; $i<@postversions; $i++) {
1025: my $version = $i+1;
1026: $$discussionitems[$idx] .= '<b>'.$version.'.</b> - '.&Apache::lonlocal::locallocaltime($postversions[$i]).' ';
1027: }
1028: }
1029: }
1030: }
1031: }
1032: }
1033: }
1034: }
1035: }
1036:
1037: sub get_post_contents {
1038: my ($contrib,$idx,$seeid,$type,$messages,$subjects,$allattachments,$attachtxt,$imsfiles,$screenname,$plainname,$numver) = @_;
1039: my $discussion = '';
1040: my $start=$numver;
1041: my $end=$numver + 1;
1042: %{$$imsfiles{$idx}}=();
1043: if ($type eq 'allversions') {
1044: unless($seeid) {
1045: $discussion=&mt('You do not have privileges to view all versions of posts.').&mt('Please select a different role');
1046: return $discussion;
1047: }
1048: }
1049: # $$screenname=&Apache::loncommon::screenname(
1050: # $$contrib{$idx.':sendername'},
1051: # $$contrib{$idx.':senderdomain'});
1052: # $$plainname=&Apache::loncommon::nickname(
1053: # $$contrib{$idx.':sendername'},
1054: # $$contrib{$idx.':senderdomain'});
1055: ($$screenname,$$plainname)=($$contrib{$idx.':screenname'},
1056: $$contrib{$idx.':plainname'});
1057: my $sender=&Apache::loncommon::aboutmewrapper(
1058: $$plainname,
1059: $$contrib{$idx.':sendername'},
1060: $$contrib{$idx.':senderdomain'}).' ('.
1061: $$contrib{$idx.':sendername'}.' at '.
1062: $$contrib{$idx.':senderdomain'}.')';
1063: my $attachmenturls = $$contrib{$idx.':attachmenturl'};
1064: my @postversions = ();
1065: if ($type eq 'allversions' || $type eq 'export') {
1066: $start = 0;
1067: if ($$contrib{$idx.':history'}) {
1068: if ($$contrib{$idx.':history'} =~ m/:/) {
1069: @postversions = split/:/,$$contrib{$idx.':history'};
1070: } else {
1071: @postversions = ("$$contrib{$idx.':history'}");
1072: }
1073: }
1074: &get_post_versions($messages,$$contrib{$idx.':message'},1);
1075: &get_post_versions($subjects,$$contrib{$idx.':subject'},1);
1076: push @postversions,$$contrib{$idx.':timestamp'};
1077: $end = @postversions;
1078: } else {
1079: &get_post_versions($messages,$$contrib{$idx.':message'},1,$numver);
1080: &get_post_versions($subjects,$$contrib{$idx.':subject'},1,$numver);
1081: }
1082:
1083: if ($$contrib{$idx.':anonymous'}) {
1084: $sender.=' ['.&mt('anonymous').'] '.$$screenname;
1085: }
1086: if ($type eq 'allversions') {
1087: $discussion=('<b>'.$sender.'</b><br /><ul>');
1088: }
1089: for (my $i=$start; $i<$end; $i++) {
1090: my ($timesent,$attachmsg);
1091: my %currattach = ();
1092: $timesent = &Apache::lonlocal::locallocaltime($postversions[$i]);
1093: $$messages{$i}=~s/\n/\<br \/\>/g;
1094: $$messages{$i}=&Apache::lontexconvert::msgtexconverted($$messages{$i});
1095: $$subjects{$i}=~s/\n/\<br \/\>/g;
1096: $$subjects{$i}=&Apache::lontexconvert::msgtexconverted($$subjects{$i});
1097: if ($attachmenturls) {
1098: &extract_attachments($attachmenturls,$idx,$i,\$attachmsg,$allattachments,\%currattach);
1099: }
1100: if ($type eq 'export') {
1101: $$imsfiles{$idx}{$i} = '';
1102: if ($attachmsg) {
1103: $$attachtxt{$i} = '<br />Attachments:<br />';
1104: foreach (sort keys %currattach) {
1105: if ($$allattachments{$_}{'filename'} =~ m-^/uploaded/([^/]+/[^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1106: my $fname = $1.$3.'/'.$4;
1107: $$imsfiles{$idx}{$i} .= '<file href="'.$fname.'">'."\n";
1108: $$attachtxt{$i}.= '<a href="'.$fname.'">'.$4.'</a><br />';
1109: }
1110: }
1111: }
1112: } else {
1113: if ($attachmsg) {
1114: $$attachtxt{$i} = '<br />Attachments:'.$attachmsg.'<br />';
1115: } else {
1116: $$attachtxt{$i} = '';
1117: }
1118: }
1119: if ($type eq 'allversions') {
1120: $discussion.= <<"END";
1121: <li><b>$$subjects{$i}</b>, $timesent<br />
1122: $$messages{$i}<br />
1123: $$attachtxt{$i}</li>
1124: END
1125: }
1126: }
1127: if ($type eq 'allversions') {
1128: $discussion.=('</ul></body></html>');
1129: return $discussion;
1130: } else {
1131: return;
1132: }
1133: }
1134:
1135: sub replicate_attachments {
1136: my ($attachrefs,$tempexport) = @_;
1137: my $response;
1138: foreach my $id (keys %{$attachrefs}) {
1139: if ($$attachrefs{$id}{'filename'} =~ m-^/uploaded/([^/]+)/([^/]+)(/feedback)?(/?\d*)/([^/]+)$-) {
1140: my $path = $tempexport;
1141: my $tail = $1.'/'.$2.$4;
1142: my @extras = split/\//,$tail;
1143: my $destination = $tempexport.'/'.$1.'/'.$2.$4.'/'.$5;
1144: if (!-e $destination) {
1145: my $i= 0;
1146: while ($i<@extras) {
1147: $path .= '/'.$extras[$i];
1148: if (!-e $path) {
1149: mkdir($path,0700);
1150: }
1151: $i ++;
1152: }
1153: my ($content,$rtncode);
1154: my $uploadreply = &Apache::lonnet::getuploaded('GET',$$attachrefs{$id}{'filename'},$1,$2,$content,$rtncode);
1155: if ($uploadreply eq 'ok') {
1156: my $attachcopy;
1157: if ($attachcopy = Apache::File->new('>'.$destination)) {
1158: print $attachcopy $content;
1159: close($attachcopy);
1160: } else {
1161: $response .= 'Error copying file attachment - '.$5.' to IMS package: '.$!.'<br />'."\n";
1162: }
1163: } else {
1164: &Apache::lonnet::logthis("Replication of attachment failed when building IMS export of discussion posts - domain: $1, course: $2, file: $$attachrefs{$id}{'filename'} -error: $rtncode");
1165: $response .= 'Error copying file attachment - '.$5.' to IMS package: '.$rtncode.'<br />'."\n";
1166: }
1167: }
1168: }
1169: }
1170: return $response;
1171: }
1172:
1173: sub mail_screen {
1174: my ($r,$feedurl,$options) = @_;
1175: if (exists($ENV{'form.origpage'})) {
1176: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','currnewattach','addnewattach','deloldattach','delnewattach','timestamp','idx','anondiscuss','discuss']);
1177: }
1178: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
1179: '','onLoad="window.focus();setposttype();"');
1180: my $title=&Apache::lonnet::gettitle($feedurl);
1181: if (!$title) { $title = $feedurl; }
1182: my $quote='';
1183: my $subject = '';
1184: my $comment = '';
1185: my $prevtag = '';
1186: my $parentmsg = '';
1187: my ($symb,$idx,$attachmenturls);
1188: my $numoldver = 0;
1189: my $attachmsg = '';
1190: my $newattachmsg = '';
1191: my @currnewattach = ();
1192: my @currdelold = ();
1193: my @keepold = ();
1194: my %attachments = ();
1195: my %currattach = ();
1196: my $attachnum = 0;
1197: my $anonchk = (<<END);
1198: function anonchk() {
1199: if (document.mailform.anondiscuss.checked == true) {
1200: document.attachment.anondiscuss.value = '1'
1201: }
1202: if (document.mailform.discuss.checked == true) {
1203: document.attachment.discuss.value = '1'
1204: }
1205: return
1206: }
1207: END
1208: my $anonscript;
1209: if (exists($ENV{'form.origpage'})) {
1210: $anonscript = (<<END);
1211: function setposttype() {
1212: var anondisc = $ENV{'form.anondiscuss'};
1213: var disc = $ENV{'form.discuss'};
1214: if (anondisc == 1) {
1215: document.mailform.anondiscuss.checked = true
1216: }
1217: if (disc == 1) {
1218: document.mailform.discuss.checked = true
1219: }
1220: return
1221: }
1222: END
1223: } else {
1224: $anonscript = (<<END);
1225: function setposttype() {
1226: return
1227: }
1228: END
1229: }
1230: if (($ENV{'form.replydisc'}) || ($ENV{'form.editdisc'})) {
1231: if ($ENV{'form.replydisc'}) {
1232: ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'});
1233: } else {
1234: ($symb,$idx)=split(/\:\:\:/,$ENV{'form.editdisc'});
1235: }
1236: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
1237: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1238: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1239: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1240: if ($contrib{$idx.':history'}) {
1241: if ($contrib{$idx.':history'} =~ /:/) {
1242: my @oldversions = split/:/,$contrib{$idx.':history'};
1243: $numoldver = @oldversions;
1244: } else {
1245: $numoldver = 1;
1246: }
1247: }
1248: if ($ENV{'form.replydisc'}) {
1249: if ($contrib{$idx.':history'}) {
1250: if ($contrib{$idx.':history'} =~ /:/) {
1251: my @oldversions = split/:/,$contrib{$idx.':history'};
1252: $numoldver = @oldversions;
1253: } else {
1254: $numoldver = 1;
1255: }
1256: }
1257: my $message;
1258: if ($idx > 0) {
1259: my %msgversions = ();
1260: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1261: $message = $msgversions{$numoldver};
1262: }
1263: $message=~s/\n/\<br \/\>/g;
1264: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
1265: if ($idx > 0) {
1266: my %subversions = ();
1267: &get_post_versions(\%subversions,$contrib{$idx.':subject'},1,$numoldver);
1268: $subject = 'Re: '.$subversions{$numoldver};
1269: }
1270: $subject = &HTML::Entities::encode($subject,'<>&"');
1271: } else {
1272: $attachmenturls = $contrib{$idx.':attachmenturl'};
1273: if ($idx > 0) {
1274: my %msgversions = ();
1275: &get_post_versions(\%msgversions,$contrib{$idx.':message'},0,$numoldver);
1276: $comment = $msgversions{$numoldver};
1277: my %subversions = ();
1278: &get_post_versions(\%subversions,$contrib{$idx.':subject'},0,$numoldver);
1279: $subject = $subversions{$numoldver};
1280: }
1281: if (defined($contrib{$idx.':replyto'})) {
1282: $parentmsg = $contrib{$idx.':replyto'};
1283: }
1284: unless (exists($ENV{'form.origpage'})) {
1285: my $anonflag = 0;
1286: if ($contrib{$idx.':anonymous'}) {
1287: $anonflag = 1;
1288: }
1289: $anonscript = (<<END);
1290: function setposttype () {
1291: var currtype = $anonflag
1292: if (currtype == 1) {
1293: document.mailform.elements.discuss.checked = false
1294: document.mailform.elements.anondiscuss.checked = true
1295: }
1296: if (currtype == 0) {
1297: document.mailform.elements.anondiscuss.checked = false
1298: document.mailform.elements.discuss.checked = true
1299: }
1300: return
1301: }
1302: END
1303: }
1304: }
1305: }
1306: if ($ENV{'form.previous'}) {
1307: $prevtag = '<input type="hidden" name="previous" value="'.$ENV{'form.previous'}.'" />';
1308: }
1309: }
1310:
1311: if ($ENV{'form.origpage'}) {
1312: $subject = &Apache::lonnet::unescape($ENV{'form.subject'});
1313: $comment = &Apache::lonnet::unescape($ENV{'form.comment'});
1314: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
1315: }
1316: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet();
1317: my $htmlheader=&Apache::lonhtmlcommon::htmlareaheaders();
1318: my $send=&mt('Send');
1319: $r->print(<<END);
1320: <html>
1321: <head>
1322: <title>The LearningOnline Network with CAPA</title>
1323: <meta http-equiv="pragma" content="no-cache"></meta>
1324: $htmlheader
1325: <script type="text/javascript">
1326: //<!--
1327: function gosubmit() {
1328: var rec=0;
1329: if (typeof(document.mailform.elements.author)!="undefined") {
1330: if (document.mailform.elements.author.checked) {
1331: rec=1;
1332: }
1333: }
1334: if (typeof(document.mailform.elements.question)!="undefined") {
1335: if (document.mailform.elements.question.checked) {
1336: rec=1;
1337: }
1338: }
1339: if (typeof(document.mailform.elements.course)!="undefined") {
1340: if (document.mailform.elements.course.checked) {
1341: rec=1;
1342: }
1343: }
1344: if (typeof(document.mailform.elements.policy)!="undefined") {
1345: if (document.mailform.elements.policy.checked) {
1346: rec=1;
1347: }
1348: }
1349: if (typeof(document.mailform.elements.discuss)!="undefined") {
1350: if (document.mailform.elements.discuss.checked) {
1351: rec=1;
1352: }
1353: }
1354: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
1355: if (document.mailform.elements.anondiscuss.checked) {
1356: rec=1;
1357: }
1358: }
1359:
1360: if (rec) {
1361: if (typeof(document.mailform.onsubmit)=='function') {
1362: document.mailform.onsubmit();
1363: }
1364: document.mailform.submit();
1365: } else {
1366: alert('Please check a feedback type.');
1367: }
1368: }
1369: $anonchk
1370: $anonscript
1371: //-->
1372: </script>
1373: </head>
1374: $bodytag
1375: <h2><tt>$title</tt></h2>
1376: <form action="/adm/feedback" method="post" name="mailform"
1377: enctype="multipart/form-data">
1378: $prevtag
1379: <input type="hidden" name="postdata" value="$feedurl" />
1380: END
1381: if ($ENV{'form.replydisc'}) {
1382: $r->print(<<END);
1383: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" />
1384: END
1385: } elsif ($ENV{'form.editdisc'}) {
1386: $r->print(<<END);
1387: <input type="hidden" name="editdisc" value ="$ENV{'form.editdisc'}" />
1388: <input type="hidden" name="parentmsg" value ="$parentmsg" />
1389: END
1390: }
1391: $r->print(<<END);
1392: Please check at least one of the following feedback types:
1393: $options<hr />
1394: $quote
1395: <p>My question/comment/feedback:</p>
1396: <p>
1397: $latexHelp
1398: Title: <input type="text" name="subject" size="30" value="$subject" /></p>
1399: <p>
1400: <textarea name="comment" id="comment" cols="60" rows="10" wrap="hard">$comment
1401: </textarea></p>
1402: <p>
1403: END
1404: if ( ($ENV{'form.editdisc'}) || ($ENV{'form.replydisc'}) ) {
1405: if ($ENV{'form.origpage'}) {
1406: foreach (@currnewattach) {
1407: $r->print('<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n");
1408: }
1409: foreach (@currdelold) {
1410: $r->print('<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n");
1411: }
1412: }
1413: if ($ENV{'form.editdisc'}) {
1414: if ($attachmenturls) {
1415: &extract_attachments($attachmenturls,$idx,$numoldver,\$attachmsg,\%attachments,\%currattach,\@currdelold);
1416: $attachnum = scalar(keys %currattach);
1417: foreach (keys %currattach) {
1418: $r->print('<input type="hidden" name="keepold" value="'.$_.'" />'."\n");
1419: }
1420: }
1421: }
1422: } else {
1423: $r->print(<<END);
1424: Attachment (128 KB max size): <input type="file" name="attachment" />
1425: </p>
1426: END
1427: }
1428: $r->print(<<END);
1429: <p>
1430: <input type="hidden" name="sendit" value="1" />
1431: <input type="button" value="$send" onClick='gosubmit();' />
1432: </p>
1433: </form>
1434: END
1435: if ($ENV{'form.editdisc'} || $ENV{'form.replydisc'}) {
1436: my $now = time;
1437: my $ressymb = $symb;
1438: my $postidx = '';
1439: if ($ENV{'form.editdisc'}) {
1440: $postidx = $idx;
1441: }
1442: if (@currnewattach > 0) {
1443: $attachnum += @currnewattach;
1444: }
1445: $r->print(&generate_attachments_button($postidx,$attachnum,$ressymb,$now,\@currnewattach,\@currdelold,$numoldver));
1446: if ($attachnum > 0) {
1447: if (@currnewattach > 0) {
1448: $newattachmsg .= '<b>New attachments</b><br />';
1449: if (@currnewattach > 1) {
1450: $newattachmsg .= '<ol>';
1451: foreach my $item (@currnewattach) {
1452: $item =~ m#.*/([^/]+)$#;
1453: $newattachmsg .= '<li><a href="'.$item.'">'.$1.'</a></li>'."\n";
1454: }
1455: $newattachmsg .= '</ol>'."\n";
1456: } else {
1457: $currnewattach[0] =~ m#.*/([^/]+)$#;
1458: $newattachmsg .= '<a href="'.$currnewattach[0].'">'.$1.'</a><br />'."\n";
1459: }
1460: }
1461: if ($attachmsg) {
1462: $r->print("<b>Retained attachments</b>:$attachmsg<br />\n");
1463: }
1464: if ($newattachmsg) {
1465: $r->print("$newattachmsg<br />");
1466: }
1467: }
1468: }
1469: $r->print(&generate_preview_button().
1470: &Apache::lonhtmlcommon::htmlareaselectactive('comment').
1471: '</body></html>');
1472: }
1473:
1474: sub print_display_options {
1475: my ($r,$symb,$previous,$dispchgA,$dispchgB,$markchg,$toggchg,$feedurl) = @_;
1476: &Apache::loncommon::content_type($r,'text/html');
1477: $r->send_http_header;
1478:
1479: my $function = &Apache::loncommon::get_users_function();
1480: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
1481: $ENV{'user.domain'});
1482: my $bodytag=&Apache::loncommon::bodytag('Discussion options',
1483: '','');
1484:
1485: my %lt = &Apache::lonlocal::texthash(
1486: 'dido' => 'Discussion display options',
1487: 'pref' => 'Display Preference',
1488: 'curr' => 'Current setting ',
1489: 'actn' => 'Action',
1490: 'deff' => 'Default for all discussions',
1491: 'prca' => 'Preferences can be set for this discussion that determine ....',
1492: 'whpo' => 'Which posts are displayed when you display this bulletin board or resource, and',
1493: 'unwh' => 'Under what circumstances posts are identified as "NEW", and',
1494: 'wipa' => 'Whether individual posts can be marked as read/unread',
1495: 'allposts' => 'All posts',
1496: 'unread' => 'New posts only',
1497: 'unmark' => 'Posts not marked read',
1498: 'ondisp' => 'Once displayed',
1499: 'onmark' => 'Once marked not NEW ',
1500: 'toggon' => 'Shown',
1501: 'toggoff' => 'Not shown',
1502: 'disa' => 'Posts displayed?',
1503: 'npmr' => 'New posts cease to be identified as "NEW"?',
1504: 'dotm' => 'Option to mark each post as read/unread?',
1505: 'chgt' => 'Change to ',
1506: 'mkdf' => 'Set to ',
1507: 'yhni' => 'You have not indicated that you wish to change any of the discussion settings',
1508: 'ywbr' => 'You will be returned to the previous page if you click OK.'
1509: );
1510:
1511: my $dispchangeA = $lt{'unread'};
1512: my $dispchangeB = $lt{'unmark'};
1513: my $markchange = $lt{'ondisp'};
1514: my $toggchange = $lt{'toggon'};
1515: my $currdisp = $lt{'allposts'};
1516: my $currmark = $lt{'onmark'};
1517: my $discdisp = 'allposts';
1518: my $discmark = 'onmark';
1519: my $currtogg = $lt{'toggoff'};
1520: my $disctogg = 'toggoff';
1521:
1522: if ($dispchgA eq 'allposts') {
1523: $dispchangeA = $lt{'allposts'};
1524: $currdisp = $lt{'unread'};
1525: $discdisp = 'unread';
1526: }
1527:
1528: if ($markchg eq 'markonread') {
1529: $markchange = $lt{'onmark'};
1530: $currmark = $lt{'ondisp'};
1531: $discmark = 'ondisp';
1532: }
1533:
1534: if ($dispchgB eq 'onlyunread') {
1535: $dispchangeB = $lt{'unread'};
1536: $currdisp = $lt{'unmark'};
1537: $discdisp = 'unmark';
1538: }
1539: if ($toggchg eq 'toggoff') {
1540: $toggchange = $lt{'toggoff'};
1541: $currtogg = $lt{'toggon'};
1542: $disctogg = 'toggon';
1543: }
1544: $r->print(<<END);
1545: <html>
1546: <head>
1547: <title>$lt{'dido'}</title>
1548: <meta http-equiv="pragma" content="no-cache" />
1549: <script>
1550: function discdispChk(caller) {
1551: var disctogg = '$toggchg'
1552: if (caller == 0) {
1553: if (document.modifydisp.discdisp[0].checked == true) {
1554: if (document.modifydisp.discdisp[1].checked == true) {
1555: document.modifydisp.discdisp[1].checked = false
1556: }
1557: }
1558: }
1559: if (caller == 1) {
1560: if (document.modifydisp.discdisp[1].checked == true) {
1561: if (document.modifydisp.discdisp[0].checked == true) {
1562: document.modifydisp.discdisp[0].checked = false
1563: }
1564: if (disctogg == 'toggon') {
1565: document.modifydisp.disctogg.checked = true
1566: }
1567: if (disctogg == 'toggoff') {
1568: document.modifydisp.disctogg.checked = false
1569: }
1570: }
1571: }
1572: if (caller == 2) {
1573: var dispchgB = '$dispchgB'
1574: if (disctogg == 'toggoff') {
1575: if (document.modifydisp.disctogg.checked == true) {
1576: if (dispchgB == 'onlyunmark') {
1577: document.modifydisp.discdisp[1].checked = false
1578: }
1579: }
1580: }
1581: }
1582: }
1583:
1584: function setDisp() {
1585: var prev = "$previous"
1586: var chktotal = 0
1587: if (document.modifydisp.discdisp[0].checked == true) {
1588: document.modifydisp.$dispchgA.value = "$symb"
1589: chktotal ++
1590: }
1591: if (document.modifydisp.discdisp[1].checked == true) {
1592: document.modifydisp.$dispchgB.value = "$symb"
1593: chktotal ++
1594: }
1595: if (document.modifydisp.discmark.checked == true) {
1596: document.modifydisp.$markchg.value = "$symb"
1597: chktotal ++
1598: }
1599: if (document.modifydisp.disctogg.checked == true) {
1600: document.modifydisp.$toggchg.value = "$symb"
1601: chktotal ++
1602: }
1603: if (chktotal > 0) {
1604: document.modifydisp.submit()
1605: } else {
1606: if(confirm("$lt{'yhni'}. \\n$lt{'ywbr'}")) {
1607: if (prev > 0) {
1608: location.href = "$feedurl?previous=$previous"
1609: } else {
1610: location.href = "$feedurl"
1611: }
1612: }
1613: }
1614: }
1615: </script>
1616: </head>
1617: $bodytag
1618: <form name="modifydisp" method="post" action="/adm/feedback">
1619: $lt{'sdpf'}<br/> $lt{'prca'} <ol><li>$lt{'whpo'}</li><li>$lt{'unwh'}</li><li>$lt{'wipa'}</li></ol>
1620: <br />
1621: <table border="0" cellpadding="0" cellspacing="0">
1622: <tr>
1623: <td width="100%" bgcolor="#000000">
1624: <table width="100%" border="0" cellpadding="1" cellspacing="0">
1625: <tr>
1626: <td width="100%" bgcolor="#000000">
1627: <table border="0" cellpadding="3" cellspacing="1" bgcolor="#FFFFFF">
1628: <tr bgcolor="$tabcolor">
1629: <td><b>$lt{'pref'}</b></td>
1630: <td><b>$lt{'curr'}</b></td>
1631: <td><b>$lt{'actn'}?</b></td>
1632: </tr>
1633: <tr bgcolor="#dddddd">
1634: <td>$lt{'disa'}</td>
1635: <td>$lt{$discdisp}</td>
1636: <td><input type="checkbox" name="discdisp" onClick="discdispChk('0')" /> $lt{'chgt'} "$dispchangeA"
1637: <br />
1638: <input type="checkbox" name="discdisp" onClick="discdispChk('1')" /> $lt{'chgt'} "$dispchangeB"
1639: </td>
1640: </tr><tr bgcolor="#eeeeee">
1641: <td>$lt{'npmr'}</td>
1642: <td>$lt{$discmark}</td>
1643: <td><input type="checkbox" name="discmark" />$lt{'chgt'} "$markchange"</td>
1644: </tr><tr bgcolor="#dddddd">
1645: <td>$lt{'dotm'}</td>
1646: <td>$lt{$disctogg}</td>
1647: <td><input type="checkbox" name="disctogg" onClick="discdispChk('2')" />$lt{'chgt'} "$toggchange"</td>
1648: </tr>
1649: </table>
1650: </td>
1651: </tr>
1652: </table>
1653: </td>
1654: </tr>
1655: </table>
1656: <br />
1657: <br />
1658: <input type="hidden" name="symb" value="$symb" />
1659: <input type="hidden" name="previous" value="$previous" />
1660: <input type="hidden" name="$dispchgA" value=""/>
1661: <input type="hidden" name="$dispchgB" value=""/>
1662: <input type="hidden" name="$markchg" value=""/>
1663: <input type="hidden" name="$toggchg" value="" />
1664: <input type="button" name="sub" value="Store Changes" onClick="javascript:setDisp()" />
1665: <br />
1666: <br />
1667: </form>
1668: </body>
1669: </html>
1670: END
1671: return;
1672: }
1673:
1674: sub print_sortfilter_options {
1675: my ($r,$symb,$previous,$feedurl) = @_;
1676:
1677: &Apache::loncommon::content_type($r,'text/html');
1678: $r->send_http_header;
1679:
1680: &Apache::lonenc::check_encrypt(\$symb);
1681: my @sections = ();
1682: my $section_sel = '';
1683: my $numsections = 0;
1684: my $numvisible = 5;
1685: my ($classlist) = &Apache::loncoursedata::get_classlist(
1686: $ENV{'request.course.id'},
1687: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1688: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1689:
1690: my $sec_index = &Apache::loncoursedata::CL_SECTION();
1691: my $status_index = &Apache::loncoursedata::CL_STATUS();
1692: my %sectioncount = ();
1693: while (my ($student,$data) = each %$classlist) {
1694: my ($section,$status) = ($data->[$sec_index],
1695: $data->[$status_index]);
1696: unless ($section eq '' || $section =~ /^\s*$/) {
1697: if (!defined($sectioncount{$section})) {
1698: $sectioncount{$section} = 1;
1699: $numsections ++;
1700: } else {
1701: $sectioncount{$section} ++;
1702: }
1703: }
1704: }
1705:
1706: if ($ENV{'request.course.sec'} !~ /^\s*$/) {
1707: @sections = ($ENV{'request.course.sec'});
1708: $numvisible = 1;
1709: } else {
1710: @sections = sort {$a cmp $b} keys(%sectioncount);
1711: unshift(@sections,'all'); # Put 'all' at the front of the list
1712: if ($numsections < 4) {
1713: $numvisible = $numsections + 1;
1714: }
1715: }
1716: foreach (@sections) {
1717: $section_sel .= " <option value=\"$_\" />$_\n";
1718: }
1719:
1720: my $function = &Apache::loncommon::get_users_function();
1721: my $tabcolor = &Apache::loncommon::designparm($function.'.tabbg',
1722: $ENV{'user.domain'});
1723: my $bodytag=&Apache::loncommon::bodytag('Discussion options',
1724: '','');
1725: my %lt = &Apache::lonlocal::texthash(
1726: 'diso' => 'Discussion sorting and filtering options',
1727: 'diop' => 'Display Options',
1728: 'curr' => 'Current setting ',
1729: 'actn' => 'Action',
1730: 'prca' => 'Options can be set that control the sort order of the posts, in addition to which posts are displayed.',
1731: 'soor' => 'Sort order',
1732: 'disp' => 'Specific user roles',
1733: 'actv' => 'Specific role status',
1734: 'spse' => 'Specific sections',
1735: 'psub' => 'Pick specific users (by name)',
1736: 'shal' => 'Show a list of current posters'
1737: );
1738: $r->print(<<END);
1739: <html>
1740: <head>
1741: <title>$lt{'diso'}</title>
1742: <meta http-equiv="pragma" content="no-cache" />
1743: </head>
1744: $bodytag
1745: <form name="modifyshown" method="post" action="/adm/feedback">
1746: <b>$lt{'diso'}</b><br/> $lt{'prca'}
1747: <br /><br />
1748: <table border="0">
1749: <tr>
1750: <td><b>$lt{'soor'}</b></td>
1751: <td> </td>
1752: <td><b>$lt{'disp'}</b></td>
1753: <td> </td>
1754: <td><b>$lt{'actv'}</b></td>
1755: <td> </td>
1756: <td><b>$lt{'spse'}</b></td>
1757: <td> </td>
1758: <td><b>$lt{'psub'}</b></td>
1759: </tr>
1760: <tr>
1761: <td>
1762: <select name="sortposts">
1763: <option value="ascdate" />Date order - oldest first
1764: <option value="descdate" />Date order - newest first
1765: <option value="thread" />Threaded
1766: <option value="subject" />By subject
1767: <option value="username" />By domain and username
1768: <option value="lastfirst" />By last name, first name
1769: </select>
1770: </td>
1771: <td> </td>
1772: <td>
1773: <select name="rolefilter" multiple="true" size="5">
1774: <option value="all" />All users
1775: <option value="st" />Students
1776: <option value="cc" />Course Coordinators
1777: <option value="in" />Instructors
1778: <option value="ta" />TAs
1779: <option value="pr" />Exam proctors
1780: <option value="cr" />Custom roles
1781: </select>
1782: </td>
1783: <td> </td>
1784: <td>
1785: <select name="statusfilter">
1786: <option value="all" />Roles of any status
1787: <option value="Active" />Only active roles
1788: <option value="Expired" />Only inactive roles
1789: </select>
1790: </td>
1791: <td> </td>
1792: <td>
1793: <select name="sectionpick" multiple="true" size="$numvisible">
1794: $section_sel
1795: </select>
1796: </td>
1797: <td> </td>
1798: <td><input type="checkbox" name="posterlist" value="$symb" />$lt{'shal'}</td>
1799: </tr>
1800: </table>
1801: <br />
1802: <br />
1803: <input type="hidden" name="previous" value="$previous" />
1804: <input type="hidden" name="applysort" value="$symb" />
1805: <input type="button" name="sub" value="Store Changes" onClick="javascript:document.modifyshown.submit()" />
1806: <br />
1807: <br />
1808: </form>
1809: </body>
1810: </html>
1811: END
1812: }
1813:
1814: sub print_showposters {
1815: my ($r,$symb,$previous,$feedurl,$sortposts) = @_;
1816:
1817: &Apache::lonenc::check_encrypt(\$symb);
1818: my $crs='/'.$ENV{'request.course.id'};
1819: if ($ENV{'request.course.sec'}) {
1820: $crs.='_'.$ENV{'request.course.sec'};
1821: }
1822: $crs=~s/\_/\//g;
1823: my $seeid=&Apache::lonnet::allowed('rin',$crs);
1824: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
1825: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1826: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1827: my %namesort = ();
1828: my %postcounts = ();
1829: my %lt=&Apache::lonlocal::texthash(
1830: 'diso' => 'Discussion filtering options',
1831: );
1832: my $bodytag=&Apache::loncommon::bodytag('Discussion options',
1833: '','');
1834: if ($contrib{'version'}) {
1835: for (my $idx=1;$idx<=$contrib{'version'};$idx++) {
1836: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
1837: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
1838: unless ((($hidden) && (!$seeid)) || ($deleted)) {
1839: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
1840: my %names = &Apache::lonnet::get('environment',['firstname','lastname'],$contrib{$idx.':senderdomain'},$contrib{$idx.':sendername'});
1841: my $lastname = $names{'lastname'};
1842: my $firstname = $names{'firstname'};
1843: if ($lastname eq '') {
1844: $lastname = '_';
1845: }
1846: if ($firstname eq '') {
1847: $firstname = '_';
1848: }
1849: unless (defined($namesort{$lastname})) {
1850: %{$namesort{$lastname}} = ();
1851: }
1852: my $poster = $contrib{$idx.':sendername'}.':'.$contrib{$idx.':senderdomain'};
1853: $postcounts{$poster} ++;
1854: if (defined($namesort{$lastname}{$firstname})) {
1855: if (!grep/^$poster$/,@{$namesort{$lastname}{$firstname}}) {
1856: push @{$namesort{$lastname}{$firstname}}, $poster;
1857: }
1858: } else {
1859: @{$namesort{$lastname}{$firstname}} = ("$poster");
1860: }
1861: }
1862: }
1863: }
1864: }
1865: $r->print(<<END);
1866: <html>
1867: <head>
1868: <title>$lt{'diso'}</title>
1869: <meta http-equiv="pragma" content="no-cache" />
1870: </head>
1871: $bodytag
1872: <form name="pickpostersform" method="post">
1873: <table border="0">
1874: <tr>
1875: <td bgcolor="#777777">
1876: <table border="0" cellpadding="3">
1877: <tr bgcolor="#e6ffff">
1878: <td><b>No.</b></td>
1879: <td><b>Select</b></td>
1880: <td><b>Fullname</b><font color="#999999">(Username/domain)</font></td>
1881: <td><b>Posts</td>
1882: </tr>
1883: END
1884: my $count = 0;
1885: foreach my $last (sort keys %namesort) {
1886: foreach my $first (sort keys %{$namesort{$last}}) {
1887: foreach (sort @{$namesort{$last}{$first}}) {
1888: my ($uname,$udom) = split/:/,$_;
1889: if (!$uname || !$udom) {
1890: next;
1891: } else {
1892: $count ++;
1893: $r->print('<tr bgcolor="#ffffe6"><td align="right">'.$count.'</td><td align="center"><input name="stuinfo" type="checkbox" value="'.$_.'" /></td><td>'.$last.', '.$first.' ('.$uname.','.$udom.')</td><td>'.$postcounts{$_}.'</td></tr>');
1894: }
1895: }
1896: }
1897: }
1898: $r->print(<<END);
1899: </table>
1900: </td>
1901: </tr>
1902: </table>
1903: <br />
1904: <input type="hidden" name="sortposts" value="$sortposts" />
1905: <input type="hidden" name="userpick" value="$symb" />
1906: <input type="button" name="store" value="Display posts" onClick="javascript:document.pickpostersform.submit()" />
1907: </form>
1908: </body>
1909: </html>
1910: END
1911: }
1912:
1913: sub get_post_versions {
1914: my ($versions,$incoming,$htmldecode,$numver) = @_;
1915: if ($incoming =~ /^<version num="0">/) {
1916: my $p = HTML::LCParser->new(\$incoming);
1917: my $done = 0;
1918: while ( (my $token = $p->get_tag("version")) && (!$done)) {
1919: my $num = $token->[1]{num};
1920: my $text = $p->get_text("/version");
1921: if (defined($numver)) {
1922: if ($num == $numver) {
1923: if ($htmldecode) {
1924: $text = &HTML::Entities::decode($text);
1925: }
1926: $$versions{$numver}=$text;
1927: $done = 1;
1928: }
1929: } else {
1930: if ($htmldecode) {
1931: $text = &HTML::Entities::decode($text);
1932: }
1933: $$versions{$num}=$text;
1934: }
1935: }
1936: } else {
1937: if (!defined($numver)) {
1938: $numver = 0;
1939: }
1940: if ($htmldecode) {
1941: $$versions{$numver} = $incoming;
1942: } else {
1943: $$versions{$numver} = &HTML::Entities::encode($incoming,'<>&"');
1944: }
1945: }
1946: return;
1947: }
1948:
1949: sub get_post_attachments {
1950: my ($attachments,$attachmenturls) = @_;
1951: my $num;
1952: if ($attachmenturls =~ m/^<attachment id="0">/) {
1953: my $p = HTML::LCParser->new(\$attachmenturls);
1954: while (my $token = $p->get_tag("attachment","filename","post")) {
1955: if ($token->[0] eq "attachment") {
1956: $num = $token->[1]{id};
1957: %{$$attachments{$num}} =();
1958: } elsif ($token->[0] eq "filename") {
1959: $$attachments{$num}{'filename'} = $p->get_text("/filename");
1960: } elsif ($token->[0] eq "post") {
1961: my $id = $token->[1]{id};
1962: $$attachments{$num}{$id} = $p->get_text("/post");
1963: }
1964: }
1965: } else {
1966: %{$$attachments{'0'}} = ();
1967: $$attachments{'0'}{'filename'} = $attachmenturls;
1968: $$attachments{'0'}{'0'} = 'n';
1969: }
1970:
1971: return;
1972: }
1973:
1974: sub fail_redirect {;
1975: my ($r,$feedurl) = @_;
1976: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
1977: $r->print (<<ENDFAILREDIR);
1978: <html>
1979: <head><title>Feedback not sent</title>
1980: <meta http-equiv="pragma" content="no-cache" />
1981: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
1982: </head>
1983: <body bgcolor="#FFFFFF">
1984: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
1985: <b>Sorry, no recipients ...</b>
1986: <br /><a href="$feedurl">Continue</a>
1987: </body>
1988: </html>
1989: ENDFAILREDIR
1990: }
1991:
1992: sub redirect_back {
1993: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status,$previous,$sort,$rolefilter,$statusfilter,$secpick,$numpicks) = @_;
1994: my $sorttag = '';
1995: my $roletag = '';
1996: my $statustag = '';
1997: my $sectag = '';
1998: my $userpicktag = '';
1999: my $qrystr = '';
2000: my $prevtag = '';
2001:
2002: &Apache::loncommon::content_type($r,'text/html');
2003: $r->send_http_header;
2004:
2005: &dewrapper(\$feedurl);
2006: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
2007: if ($previous > 0) {
2008: $qrystr = 'previous='.$previous;
2009: if ($feedurl =~ /\?register=1/) {
2010: $feedurl .= '&'.$qrystr;
2011: } else {
2012: $feedurl .= '?'.$qrystr;
2013: }
2014: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
2015: }
2016: if (defined($sort)) {
2017: my $sortqry = 'sortposts='.$sort;
2018: if (($feedurl =~ /\?register=1/) || ($feedurl =~ /\?previous=/)) {
2019: $feedurl .= '&'.$sortqry;
2020: } else {
2021: $feedurl .= '?'.$sortqry;
2022: }
2023: $sorttag = '<input type="hidden" name="sortposts" value="'.$sort.'" />';
2024: if ( (defined($numpicks)) && ($numpicks > 0) ) {
2025: my $userpickqry = 'totposters='.$numpicks;
2026: $feedurl .= '&'.$userpickqry;
2027: $userpicktag = '<input type="hidden" name="totposters" value="'.$numpicks.'" />';
2028: } else {
2029: my $roleqry = 'rolefilter='.$rolefilter;
2030: $feedurl .= '&'.$roleqry;
2031: $roletag = '<input type="hidden" name="rolefilter" value="'.$rolefilter.'" />';
2032: $feedurl .= '&statusfilter='.$statusfilter;
2033: $statustag ='<input type="hidden" name="statusfilter" value="'.$statusfilter.'" />';
2034: $feedurl .= '§ionpick='.$secpick;
2035: $sectag = '<input type="hidden" name="sectionpick" value="'.$secpick.'" />';
2036: }
2037: }
2038: $feedurl=&Apache::lonenc::check_encrypt($feedurl);
2039: $r->print (<<ENDREDIR);
2040: <html>
2041: <head>
2042: <title>Feedback sent</title>
2043: <meta http-equiv="pragma" content="no-cache" />
2044: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
2045: </head>
2046: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
2047: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
2048: $typestyle
2049: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
2050: <font color="red">$status</font>
2051: <form name="reldt" action="$feedurl" target="loncapaclient">
2052: $prevtag
2053: $sorttag
2054: $statustag
2055: $roletag
2056: $sectag
2057: $userpicktag
2058: </form>
2059: <br /><a href="$feedurl">Continue</a>
2060: </body>
2061: </html>
2062: ENDREDIR
2063: }
2064:
2065: sub no_redirect_back {
2066: my ($r,$feedurl) = @_;
2067: my $nofeed=&mt('Sorry, no feedback possible on this resource ...');
2068: my $continue=&mt('Continue');
2069: $r->print (<<ENDNOREDIR);
2070: <html>
2071: <head><title>Feedback not sent</title>
2072: <meta http-equiv="pragma" content="no-cache" />
2073: ENDNOREDIR
2074:
2075: if ($feedurl!~/^\/adm\/feedback/) {
2076: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.
2077: &Apache::lonenc::check_encrypt($feedurl).'">');
2078: }
2079: $feedurl=&Apache::lonenc::check_encrypt($feedurl);
2080: $r->print (<<ENDNOREDIRTWO);
2081: </head>
2082: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
2083: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
2084: <b>$nofeed</b>
2085: <br /><a href="$feedurl">$continue</a>
2086: </body>
2087: </html>
2088: ENDNOREDIRTWO
2089: }
2090:
2091: sub screen_header {
2092: my ($feedurl,$symb) = @_;
2093: my $msgoptions='';
2094: my $discussoptions='';
2095: unless (($ENV{'form.replydisc'}) || ($ENV{'form.editdisc'})) {
2096: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
2097: $msgoptions=
2098: '<p><input type="checkbox" name="author" /> '.
2099: &mt('Feedback to resource author').'</p>';
2100: }
2101: if (&feedback_available(1)) {
2102: $msgoptions.=
2103: '<br /><input type="checkbox" name="question" /> '.
2104: &mt('Question about resource content');
2105: }
2106: if (&feedback_available(0,1)) {
2107: $msgoptions.=
2108: '<br /><input type="checkbox" name="course" /> '.
2109: &mt('Question/Comment/Feedback about course content');
2110: }
2111: if (&feedback_available(0,0,1)) {
2112: $msgoptions.=
2113: '<br /><input type="checkbox" name="policy" /> '.
2114: &mt('Question/Comment/Feedback about course policy');
2115: }
2116: }
2117: if ($ENV{'request.course.id'}) {
2118: if (&discussion_open(undef,$symb) &&
2119: &Apache::lonnet::allowed('pch',
2120: $ENV{'request.course.id'}.
2121: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
2122: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
2123: ($ENV{'form.replydisc'}?' checked="1"':'').' /> '.
2124: &mt('Contribution to course discussion of resource');
2125: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '.
2126: &mt('Anonymous contribution to course discussion of resource').
2127: ' <i>('.&mt('name only visible to course faculty').')</i>';
2128: }
2129: }
2130: if ($msgoptions) { $msgoptions='<h2><img src="/adm/lonMisc/feedback.gif" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
2131: if ($discussoptions) {
2132: $discussoptions='<h2><img src="/adm/lonMisc/chat.gif" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
2133: return $msgoptions.$discussoptions;
2134: }
2135:
2136: sub resource_output {
2137: my ($feedurl) = @_;
2138: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
2139: $usersaw=~s/\<body[^\>]*\>//gi;
2140: $usersaw=~s/\<\/body\>//gi;
2141: $usersaw=~s/\<html\>//gi;
2142: $usersaw=~s/\<\/html\>//gi;
2143: $usersaw=~s/\<head\>//gi;
2144: $usersaw=~s/\<\/head\>//gi;
2145: $usersaw=~s/action\s*\=/would_be_action\=/gi;
2146: return $usersaw;
2147: }
2148:
2149: sub clear_out_html {
2150: my ($message,$override)=@_;
2151: unless (&Apache::lonhtmlcommon::htmlareablocked()) { return $message; }
2152: # Always allow the <m>-tag
2153: my %html=(M=>1);
2154: # Check if more is allowed
2155: my $cid=$ENV{'request.course.id'};
2156: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
2157: ($override)) {
2158: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
2159: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
2160: # <SUP>
2161: %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
2162: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
2163: M=>1, SUB=>1, SUP=>1, SPAN=>1,
2164: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1);
2165: }
2166: # Do the substitution of everything that is not explicitly allowed
2167: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
2168: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
2169: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
2170: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
2171: return $message;
2172: }
2173:
2174: sub assemble_email {
2175: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
2176: my $email=<<"ENDEMAIL";
2177: $message
2178: ENDEMAIL
2179: my $citations=<<"ENDCITE";
2180: <h2>Previous attempts of student (if applicable)</h2>
2181: $prevattempts
2182: <br /><hr />
2183: <h2>Original screen output (if applicable)</h2>
2184: $usersaw
2185: <h2>Correct Answer(s) (if applicable)</h2>
2186: $useranswer
2187: ENDCITE
2188: return ($email,$citations);
2189: }
2190:
2191: sub secapply {
2192: my $rec=shift;
2193: my $defaultflag=shift;
2194: $rec=~s/\s+//g;
2195: $rec=~s/\@/\:/g;
2196: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
2197: if ($sections) {
2198: foreach (split(/\;/,$sections)) {
2199: if (($_ eq $ENV{'request.course.sec'}) ||
2200: ($defaultflag && ($_ eq '*'))) {
2201: return $adr;
2202: }
2203: }
2204: } else {
2205: return $rec;
2206: }
2207: return '';
2208: }
2209:
2210: sub decide_receiver {
2211: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
2212: my $typestyle='';
2213: my %to=();
2214: if ($ENV{'form.author'}||$author) {
2215: $typestyle.='Submitting as Author Feedback<br>';
2216: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
2217: $to{$2.':'.$1}=1;
2218: }
2219: if ($ENV{'form.question'}||$question) {
2220: $typestyle.='Submitting as Question<br>';
2221: foreach (split(/\,/,
2222: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
2223: ) {
2224: my $rec=&secapply($_,$defaultflag);
2225: if ($rec) { $to{$rec}=1; }
2226: }
2227: }
2228: if ($ENV{'form.course'}||$course) {
2229: $typestyle.='Submitting as Comment<br />';
2230: foreach (split(/\,/,
2231: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
2232: ) {
2233: my $rec=&secapply($_,$defaultflag);
2234: if ($rec) { $to{$rec}=1; }
2235: }
2236: }
2237: if ($ENV{'form.policy'}||$policy) {
2238: $typestyle.='Submitting as Policy Feedback<br />';
2239: foreach (split(/\,/,
2240: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
2241: ) {
2242: my $rec=&secapply($_,$defaultflag);
2243: if ($rec) { $to{$rec}=1; }
2244: }
2245: }
2246: if ((scalar(%to) eq '0') && (!$defaultflag)) {
2247: ($typestyle,%to)=
2248: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
2249: }
2250: return ($typestyle,%to);
2251: }
2252:
2253: sub feedback_available {
2254: my ($question,$course,$policy)=@_;
2255: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
2256: return scalar(%to);
2257: }
2258:
2259: sub send_msg {
2260: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
2261: my $status='';
2262: my $sendsomething=0;
2263: foreach (keys %to) {
2264: if ($_) {
2265: my $declutter=&Apache::lonnet::declutter($feedurl);
2266: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
2267: 'Feedback ['.$declutter.']',$email,$citations,$feedurl,
2268: $attachmenturl)=~/ok/) {
2269: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
2270: } else {
2271: $sendsomething++;
2272: }
2273: }
2274: }
2275:
2276: my %record=&Apache::lonnet::restore('_feedback');
2277: my ($temp)=keys %record;
2278: unless ($temp=~/^error\:/) {
2279: my %newrecord=();
2280: $newrecord{'resource'}=$feedurl;
2281: $newrecord{'subnumber'}=$record{'subnumber'}+1;
2282: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
2283: $status.='<br />'.&mt('Not registered').'<br />';
2284: }
2285: }
2286:
2287: return ($status,$sendsomething);
2288: }
2289:
2290: sub adddiscuss {
2291: my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
2292: my $status='';
2293: my $realsymb;
2294: if ($symb=~/^bulletin___/) {
2295: my $filename=(&Apache::lonnet::decode_symb($symb))[2];
2296: $filename=~s|^adm/wrapper/||;
2297: $realsymb=&Apache::lonnet::symbread($filename);
2298: }
2299: if (&discussion_open(undef,$realsymb) &&
2300: &Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
2301: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
2302:
2303: my %contrib=('message' => $email,
2304: 'sendername' => $ENV{'user.name'},
2305: 'senderdomain' => $ENV{'user.domain'},
2306: 'screenname' => $ENV{'environment.screenname'},
2307: 'plainname' => $ENV{'environment.firstname'}.' '.
2308: $ENV{'environment.middlename'}.' '.
2309: $ENV{'environment.lastname'}.' '.
2310: $ENV{'enrironment.generation'},
2311: 'attachmenturl'=> $attachmenturl,
2312: 'subject' => $subject);
2313: if ($ENV{'form.replydisc'}) {
2314: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1];
2315: }
2316: if ($anon) {
2317: $contrib{'anonymous'}='true';
2318: }
2319: if (($symb) && ($email)) {
2320: if ($ENV{'form.editdisc'}) {
2321: my %newcontrib = ();
2322: $contrib{'ip'}=$ENV{'REMOTE_ADDR'};
2323: $contrib{'host'}=$Apache::lonnet::perlvar{'lonHostID'};
2324: $contrib{'timestamp'} = time;
2325: $contrib{'history'} = '';
2326: my $numoldver = 0;
2327: my ($oldsymb,$oldidx)=split(/\:\:\:/,$ENV{'form.editdisc'});
2328: &Apache::lonenc::check_decrypt(\$oldsymb);
2329: $oldsymb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
2330: # get timestamp for last post and history
2331: my %oldcontrib=&Apache::lonnet::restore($oldsymb,$ENV{'request.course.id'},
2332: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2333: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2334: if (defined($oldcontrib{$oldidx.':replyto'})) {
2335: $contrib{'replyto'} = $oldcontrib{$oldidx.':replyto'};
2336: }
2337: if (defined($oldcontrib{$oldidx.':history'})) {
2338: if ($oldcontrib{$oldidx.':history'} =~ /:/) {
2339: my @oldversions = split/:/,$oldcontrib{$oldidx.':history'};
2340: $numoldver = @oldversions;
2341: } else {
2342: $numoldver = 1;
2343: }
2344: $contrib{'history'} = $oldcontrib{$oldidx.':history'}.':';
2345: }
2346: my $numnewver = $numoldver + 1;
2347: if (defined($oldcontrib{$oldidx.':subject'})) {
2348: if ($oldcontrib{$oldidx.':subject'} =~ /^<version num="0">/) {
2349: $contrib{'subject'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
2350: $contrib{'subject'} = $oldcontrib{$oldidx.':subject'}.$contrib{'subject'};
2351: } else {
2352: $contrib{'subject'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':subject'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'subject'},'<>&"').'</version>';
2353: }
2354: }
2355: if (defined($oldcontrib{$oldidx.':message'})) {
2356: if ($oldcontrib{$oldidx.':message'} =~ /^<version num="0">/) {
2357: $contrib{'message'} = '<version num="'.$numnewver.'">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
2358: $contrib{'message'} = $oldcontrib{$oldidx.':message'}.$contrib{'message'};
2359: } else {
2360: $contrib{'message'} = '<version num="0">'.&HTML::Entities::encode($oldcontrib{$oldidx.':message'},'<>&"').'</version><version num="1">'.&HTML::Entities::encode($contrib{'message'},'<>&"').'</version>';
2361: }
2362: }
2363: $contrib{'history'} .= $oldcontrib{$oldidx.':timestamp'};
2364: foreach (keys %contrib) {
2365: my $key = $oldidx.':'.&Apache::lonnet::escape($oldsymb).':'.$_;
2366: $newcontrib{$key} = $contrib{$_};
2367: }
2368: my $put_reply = &Apache::lonnet::putstore($ENV{'request.course.id'},
2369: \%newcontrib,
2370: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2371: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2372: $status='Editing class discussion'.($anon?' (anonymous)':'');
2373: } else {
2374: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
2375: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
2376: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2377: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2378: }
2379: my %storenewentry=($symb => time);
2380: $status.='<br />'.&mt('Updating discussion time').': '.
2381: &Apache::lonnet::put('discussiontimes',\%storenewentry,
2382: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2383: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2384: }
2385: my %record=&Apache::lonnet::restore('_discussion');
2386: my ($temp)=keys %record;
2387: unless ($temp=~/^error\:/) {
2388: my %newrecord=();
2389: $newrecord{'resource'}=$symb;
2390: $newrecord{'subnumber'}=$record{'subnumber'}+1;
2391: $status.='<br />'.&mt('Registering').': '.
2392: &Apache::lonnet::cstore(\%newrecord,'_discussion');
2393: }
2394: } else {
2395: $status.='Failed.';
2396: }
2397: return $status.'<br />';
2398: }
2399:
2400: # ----------------------------------------------------------- Preview function
2401:
2402: sub show_preview {
2403: my $r=shift;
2404: &Apache::loncommon::content_type($r,'text/html');
2405: $r->send_http_header;
2406: my $message=&clear_out_html($ENV{'form.comment'});
2407: $message=~s/\n/\<br \/\>/g;
2408: $message=&Apache::lonspeller::markeduptext($message);
2409: $message=&Apache::lontexconvert::msgtexconverted($message);
2410: my $subject=&clear_out_html($ENV{'form.subject'});
2411: $subject=~s/\n/\<br \/\>/g;
2412: $subject=&Apache::lontexconvert::msgtexconverted($subject);
2413: $r->print('<table border="2"><tr><td>'.
2414: '<b>Subject:</b> '.$subject.'<br /><br />'.
2415: $message.'</td></tr></table>');
2416: }
2417:
2418: sub generate_preview_button {
2419: my $pre=&mt("Show Preview and Check Spelling");
2420: return(<<ENDPREVIEW);
2421: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
2422: <input type="hidden" name="subject">
2423: <input type="hidden" name="comment" />
2424: <input type="button" value="$pre"
2425: onClick="if (typeof(document.mailform.onsubmit)=='function') {document.mailform.onsubmit();};this.form.comment.value=document.mailform.comment.value;this.form.subject.value=document.mailform.subject.value;this.form.submit();" />
2426: </form>
2427: ENDPREVIEW
2428: }
2429:
2430: sub modify_attachments {
2431: my ($r,$currnewattach,$currdelold,$symb,$idx,$attachmenturls)=@_;
2432: my $orig_subject = &Apache::lonnet::unescape($ENV{'form.subject'});
2433: my $subject=&clear_out_html($orig_subject);
2434: $subject=~s/\n/\<br \/\>/g;
2435: $subject=&Apache::lontexconvert::msgtexconverted($subject);
2436: my $timestamp=$ENV{'form.timestamp'};
2437: my $numoldver=$ENV{'form.numoldver'};
2438: my $bodytag=&Apache::loncommon::bodytag('Discussion Post Attachments',
2439: '','');
2440: my $msg = '';
2441: my %attachments = ();
2442: my %currattach = ();
2443: if ($idx) {
2444: &extract_attachments($attachmenturls,$idx,$numoldver,\$msg,\%attachments,\%currattach,$currdelold);
2445: }
2446: &Apache::lonenc::check_encrypt(\$symb);
2447: $r->print(<<END);
2448: <html>
2449: <head>
2450: <title>Managing Attachments</title>
2451: <script>
2452: function setAction () {
2453: document.modattachments.action = document.modattachments.origpage.value;
2454: document.modattachments.submit();
2455: }
2456: </script>
2457: </head>
2458: $bodytag
2459: <form name="modattachments" method="post" enctype="multipart/form-data" action="/adm/feedback?attach=$symb">
2460: <table border="2">
2461: <tr>
2462: <td>
2463: <b>Subject:</b> $subject</b><br /><br />
2464: END
2465: if ($idx) {
2466: if ($attachmenturls) {
2467: my @currold = keys %currattach;
2468: if (@currold > 0) {
2469: $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");
2470: foreach my $id (@currold) {
2471: my $attachurl = &HTML::Entities::decode($attachments{$id}{'filename'});
2472: $attachurl =~ m#/([^/]+)$#;
2473: $r->print('<input type="checkbox" name="deloldattach" value="'.$id.'" /> '.$1.'<br />'."\n");
2474: }
2475: $r->print("<br />");
2476: }
2477: }
2478: }
2479: if (@{$currnewattach} > 0) {
2480: $r->print("The following attachments have been uploaded for inclusion with this posting.<br />Check the checkboxes for any you wish to remove<br />\n");
2481: foreach (@{$currnewattach}) {
2482: $_ =~ m#/([^/]+)$#;
2483: $r->print('<input type="checkbox" name="delnewattach" value="'.$_.'" /> '.$1.'<br />'."\n");
2484: }
2485: $r->print("<br />");
2486: }
2487: $r->print(<<END);
2488: Add a new attachment to this post. <input type="file" name="addnewattach" /><input type="button" name="upload" value="Upload" onClick="this.form.submit()" />
2489: </td>
2490: </tr>
2491: </table>
2492: <input type="hidden" name="subject" value="$ENV{'form.subject'}" />
2493: <input type="hidden" name="comment" value="$ENV{'form.comment'}" />
2494: <input type="hidden" name="timestamp" value="$ENV{'form.timestamp'}" />
2495: <input type="hidden" name="idx" value="$ENV{'form.idx'}" />
2496: <input type="hidden" name="numoldver" value="$ENV{'form.numoldver'}" />
2497: <input type="hidden" name="origpage" value="$ENV{'form.origpage'}" />
2498: <input type="hidden" name="anondiscuss" value="$ENV{'form.anondiscuss'}" />
2499: <input type="hidden" name="discuss" value="$ENV{'form.discuss'}" />
2500: END
2501: foreach (@{$currnewattach}) {
2502: $r->print('<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n");
2503: }
2504: foreach (@{$currdelold}) {
2505: $r->print('<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n");
2506: }
2507: $r->print(<<END);
2508: <input type="button" name="rtntoedit" value="Store Changes" onClick="setAction()"/>
2509: </form>
2510: </body>
2511: </html>
2512: END
2513: return;
2514: }
2515:
2516: sub process_attachments {
2517: my ($currnewattach,$currdelold,$keepold) = @_;
2518: if (exists($ENV{'form.currnewattach'})) {
2519: if (ref($ENV{'form.currnewattach'}) eq 'ARRAY') {
2520: @{$currnewattach} = @{$ENV{'form.currnewattach'}};
2521: } else {
2522: $$currnewattach[0] = $ENV{'form.currnewattach'};
2523: }
2524: }
2525: if (exists($ENV{'form.deloldattach'})) {
2526: if (ref($ENV{'form.deloldattach'}) eq 'ARRAY') {
2527: @{$currdelold} = @{$ENV{'form.deloldattach'}};
2528: } else {
2529: $$currdelold[0] = $ENV{'form.deloldattach'};
2530: }
2531: }
2532: if (exists($ENV{'form.delnewattach'})) {
2533: my @currdelnew = ();
2534: my @currnew = ();
2535: if (ref($ENV{'form.delnewattach'}) eq 'ARRAY') {
2536: @currdelnew = @{$ENV{'form.delnewattach'}};
2537: } else {
2538: $currdelnew[0] = $ENV{'form.delnewattach'};
2539: }
2540: foreach my $newone (@{$currnewattach}) {
2541: my $delflag = 0;
2542: foreach (@currdelnew) {
2543: if ($newone eq $_) {
2544: $delflag = 1;
2545: last;
2546: }
2547: }
2548: unless ($delflag) {
2549: push @currnew, $newone;
2550: }
2551: }
2552: @{$currnewattach} = @currnew;
2553: }
2554: if (exists($ENV{'form.keepold'})) {
2555: if (ref($ENV{'form.keepold'}) eq 'ARRAY') {
2556: @{$keepold} = @{$ENV{'form.keepold'}};
2557: } else {
2558: $$keepold[0] = $ENV{'form.keepold'};
2559: }
2560: }
2561: }
2562:
2563: sub generate_attachments_button {
2564: my ($idx,$attachnum,$ressymb,$now,$currnewattach,$deloldattach,$numoldver,$mode) = @_;
2565: my $origpage = $ENV{'REQUEST_URI'};
2566: my $att=$attachnum.' '.&mt("attachments");
2567: my $response = (<<END);
2568: <form name="attachment" action="/adm/feedback?attach=$ressymb" method="post">
2569: Click to add/remove attachments: <input type="button" value="$att"
2570: 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);
2571: END
2572: unless ($mode eq 'board') {
2573: $response .= 'javascript:anonchk();';
2574: }
2575: $response .= (<<ENDATTACH);
2576: this.form.submit();" />
2577: <input type="hidden" name="origpage" value="$origpage" />
2578: <input type="hidden" name="idx" value="$idx" />
2579: <input type="hidden" name="timestamp" value="$now" />
2580: <input type="hidden" name="subject" />
2581: <input type="hidden" name="comment" />
2582: <input type="hidden" name="anondiscuss" value = "0";
2583: <input type="hidden" name="discuss" value = "0";
2584: <input type="hidden" name="numoldver" value="$numoldver" />
2585: ENDATTACH
2586: if (defined($deloldattach)) {
2587: if (@{$deloldattach} > 0) {
2588: foreach (@{$deloldattach}) {
2589: $response .= '<input type="hidden" name="deloldattach" value="'.$_.'" />'."\n";
2590: }
2591: }
2592: }
2593: if (defined($currnewattach)) {
2594: if (@{$currnewattach} > 0) {
2595: foreach (@{$currnewattach}) {
2596: $response .= '<input type="hidden" name="currnewattach" value="'.$_.'" />'."\n";
2597: }
2598: }
2599: }
2600: $response .= '</form>';
2601: return $response;
2602: }
2603:
2604: sub extract_attachments {
2605: my ($attachmenturls,$idx,$numoldver,$message,$attachments,$currattach,$currdelold) = @_;
2606: %{$attachments}=();
2607: &get_post_attachments($attachments,$attachmenturls);
2608: foreach my $id (sort keys %{$attachments}) {
2609: if (exists($$attachments{$id}{$numoldver})) {
2610: if (defined($currdelold)) {
2611: if (@{$currdelold} > 0) {
2612: unless (grep/^$id$/,@{$currdelold}) {
2613: $$currattach{$id} = $$attachments{$id}{$numoldver};
2614: }
2615: } else {
2616: $$currattach{$id} = $$attachments{$id}{$numoldver};
2617: }
2618: } else {
2619: $$currattach{$id} = $$attachments{$id}{$numoldver};
2620: }
2621: }
2622: }
2623: my @attached = (sort { $a <=> $b } keys %{$currattach});
2624: if (@attached == 1) {
2625: my $id = $attached[0];
2626: my $attachurl;
2627: if ($attachmenturls =~ m/^<attachment id="0">/) {
2628: $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
2629: } else {
2630: $attachurl = $$attachments{$id}{'filename'};
2631: }
2632: $attachurl=~m|/([^/]+)$|;
2633: $$message.='<br /><a href="'.$attachurl.'"><tt>'.
2634: $1.'</tt></a><br />';
2635: &Apache::lonnet::allowuploaded('/adm/feedback',
2636: $attachurl);
2637: } elsif (@attached > 1) {
2638: $$message.='<ol>';
2639: foreach (@attached) {
2640: my $id = $_;
2641: my $attachurl = &HTML::Entities::decode($$attachments{$id}{'filename'});
2642: my ($fname)
2643: =($attachurl=~m|/([^/]+)$|);
2644: $$message .= '<li><a href="'.$attachurl.
2645: '"><tt>'.
2646: $fname.'</tt></a></li>';
2647: &Apache::lonnet::allowuploaded('/adm/feedback',
2648: $attachurl);
2649: }
2650: $$message .= '</ol>';
2651: }
2652: }
2653:
2654: sub construct_attachmenturl {
2655: my ($currnewattach,$keepold,$symb,$idx)=@_;
2656: my $oldattachmenturl;
2657: my $newattachmenturl;
2658: my $startnum = 0;
2659: my $currver = 0;
2660: if (($ENV{'form.editdisc'}) && ($idx)) {
2661: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
2662: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2663: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2664: $oldattachmenturl = $contrib{$idx.':attachmenturl'};
2665: if ($contrib{$idx.':history'}) {
2666: if ($contrib{$idx.':history'} =~ /:/) {
2667: my @oldversions = split/:/,$contrib{$idx.':history'};
2668: $currver = 1 + scalar(@oldversions);
2669: } else {
2670: $currver = 2;
2671: }
2672: } else {
2673: $currver = 1;
2674: }
2675: if ($oldattachmenturl) {
2676: if ($oldattachmenturl =~ m/^<attachment id="0">/) {
2677: my %attachments = ();
2678: my $prevver = $currver-1;
2679: &get_post_attachments(\%attachments,$oldattachmenturl);
2680: my $numattach = scalar(keys %attachments);
2681: $startnum += $numattach;
2682: foreach my $num (sort {$a <=> $b} keys %attachments) {
2683: $newattachmenturl .= '<attachment id="'.$num.'"><filename>'.$attachments{$num}{'filename'}.'</filename>';
2684: foreach $_ (sort {$a <=> $b} keys %{$attachments{$num}}) {
2685: unless ($_ eq 'filename') {
2686: $newattachmenturl .= '<post id="'.$_.'">'.$attachments{$num}{$_}.'</post>';
2687: }
2688: }
2689: if (grep/^$num$/,@{$keepold}) {
2690: $newattachmenturl .= '<post id="'.$currver.'">'.$attachments{$num}{$prevver}.'</post>';
2691: }
2692: $newattachmenturl .= '</attachment>';
2693: }
2694: } else {
2695: $newattachmenturl = '<attachment id="0"><filename>'.&HTML::Entities::encode($oldattachmenturl).'</filename><post id="0">n</post>';
2696: unless (grep/^0$/,@{$keepold}) {
2697: $newattachmenturl .= '<post id="1">n</post>';
2698: }
2699: $newattachmenturl .= '</attachment>';
2700: $startnum ++;
2701: }
2702: }
2703: }
2704: for (my $i=0; $i<@{$currnewattach}; $i++) {
2705: my $attachnum = $startnum + $i;
2706: $newattachmenturl .= '<attachment id="'.$attachnum.'"><filename>'.&HTML::Entities::encode($$currnewattach[$i]).'</filename><post id="'.$currver.'">n</post></attachment>';
2707: }
2708: return $newattachmenturl;
2709: }
2710:
2711: sub has_discussion {
2712: my $resourcesref = shift;
2713: my $navmap = Apache::lonnavmaps::navmap->new();
2714: my @allres=$navmap->retrieveResources();
2715: foreach my $resource (@allres) {
2716: if ($resource->hasDiscussion()) {
2717: my $ressymb;
2718: if ($resource->symb() =~ m-(___adm/\w+/\w+)/(\d+)/bulletinboard$-) {
2719: $ressymb = 'bulletin___'.$2.$1.'/'.$2.'/bulletinboard';
2720: } else {
2721: $ressymb = $resource->symb();
2722: }
2723: push @{$resourcesref}, $ressymb;
2724: }
2725: }
2726: return;
2727: }
2728:
2729: sub handler {
2730: my $r = shift;
2731: if ($r->header_only) {
2732: &Apache::loncommon::content_type($r,'text/html');
2733: $r->send_http_header;
2734: return OK;
2735: }
2736:
2737: # --------------------------- Get query string for limited number of parameters
2738:
2739: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
2740: ['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']);
2741: if ($ENV{'form.discsymb'}) {
2742: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($ENV{'form.discsymb'});
2743: my $readkey = $symb.'_read';
2744: my $chgcount = 0;
2745: my %readinghash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$readkey],$ENV{'user.domain'},$ENV{'user.name'});
2746: foreach my $key (keys %ENV) {
2747: if ($key =~ m/^form\.postunread_(\d+)/) {
2748: if ($readinghash{$readkey} =~ /\.$1\./) {
2749: $readinghash{$readkey} =~ s/\.$1\.//;
2750: $chgcount ++;
2751: }
2752: } elsif ($key =~ m/^form\.postread_(\d+)/) {
2753: unless ($readinghash{$readkey} =~ /\.$1\./) {
2754: $readinghash{$readkey} .= '.'.$1.'.';
2755: $chgcount ++;
2756: }
2757: }
2758: }
2759: if ($chgcount > 0) {
2760: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',
2761: \%readinghash,$ENV{'user.domain'},$ENV{'user.name'});
2762: }
2763: &redirect_back($r,$feedurl,&mt('Marked postings read/unread').'<br />',
2764: '0','0','',$ENV{'form.previous'},'','','',);
2765: return OK;
2766: }
2767: if ($ENV{'form.allversions'}) {
2768: &Apache::loncommon::content_type($r,'text/html');
2769: $r->send_http_header;
2770: my $bodytag=&Apache::loncommon::bodytag('Discussion Post Versions');
2771: $r->print (<<END);
2772: <html>
2773: <head>
2774: <title>Post Versions</title>
2775: <meta http-equiv="pragma" content="no-cache" />
2776: </head>
2777: $bodytag
2778: END
2779: my $crs='/'.$ENV{'request.course.id'};
2780: if ($ENV{'request.course.sec'}) {
2781: $crs.='_'.$ENV{'request.course.sec'};
2782: }
2783: $crs=~s|_|/|g;
2784: my $seeid=&Apache::lonnet::allowed('rin',$crs);
2785: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.allversions'});
2786: ($symb)=&get_feedurl_and_clean_symb($symb);
2787: if ($idx > 0) {
2788: my %messages = ();
2789: my %subjects = ();
2790: my %attachmsgs = ();
2791: my %allattachments = ();
2792: my %imsfiles = ();
2793: my ($screenname,$plainname);
2794: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
2795: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2796: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2797: $r->print(&get_post_contents(\%contrib,$idx,$seeid,'allversions',\%messages,\%subjects,\%allattachments,\%attachmsgs,\%imsfiles,\$screenname,\$plainname));
2798: }
2799: return OK;
2800: }
2801: if ($ENV{'form.posterlist'}) {
2802: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($ENV{'form.applysort'});
2803: &print_showposters($r,$symb,$ENV{'form.previous'},$feedurl,
2804: $ENV{'form.sortposts'});
2805: return OK;
2806: }
2807: if ($ENV{'form.userpick'}) {
2808: my @posters = &Apache::loncommon::get_env_multiple('form.stuinfo');
2809: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($ENV{'form.userpick'});
2810: my $numpicks = @posters;
2811: my %discinfo;
2812: $discinfo{$symb.'_userpick'} = join('&',@posters);
2813: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',
2814: \%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
2815: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0',
2816: '',$ENV{'form.previous'},$ENV{'form.sortposts'},'','','',
2817: $numpicks);
2818: return OK;
2819: }
2820: if ($ENV{'form.applysort'}) {
2821: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($ENV{'form.applysort'});
2822: &redirect_back($r,$feedurl,&mt('Changed sort/filter').'<br />','0','0',
2823: '',$ENV{'form.previous'},$ENV{'form.sortposts'},
2824: $ENV{'form.rolefilter'},$ENV{'form.statusfilter'},
2825: $ENV{'form.secpick'});
2826: return OK;
2827: } elsif ($ENV{'form.cmd'} eq 'sortfilter') {
2828: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($ENV{'form.symb'});
2829: &print_sortfilter_options($r,$symb,$ENV{'form.previous'},$feedurl);
2830: return OK;
2831: } elsif ($ENV{'form.navtime'}) {
2832: my %discinfo = ();
2833: my @resources = ();
2834: if (defined($ENV{'form.navmaps'})) {
2835: if ($ENV{'form.navmaps'} =~ /:/) {
2836: @resources = split/:/,$ENV{'form.navmaps'};
2837: } else {
2838: @resources = ("$ENV{'form.navmaps'}");
2839: }
2840: } else {
2841: &has_discussion(\@resources);
2842: }
2843: my $numitems = @resources;
2844: my $feedurl = '/adm/navmaps';
2845: if ($ENV{'form.navurl'}) { $feedurl .= '?'.$ENV{'form.navurl'}; }
2846: my %lt = &Apache::lonlocal::texthash(
2847: 'mnpa' => 'Marked "New" posts as read in a total of',
2848: 'robb' => 'resources/bulletin boards.',
2849: 'twnp' => 'There are currently no resources or bulletin boards with unread discussion postings.'
2850: );
2851: foreach (@resources) {
2852: # backward compatibility (bulletin boards used to be 'wrapped')
2853: my $ressymb=$_;
2854: &Apache::lonenc::check_decrypt(\$ressymb);
2855: if ($ressymb =~ m/bulletin___\d+___/) {
2856: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
2857: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper/|;
2858: }
2859: }
2860: my $lastkey = $ressymb.'_lastread';
2861: $discinfo{$lastkey} = $ENV{'form.navtime'};
2862: }
2863: my $textline = "<b>$lt{'mnpa'} $numitems $lt{'robb'}</b>";
2864: if ($numitems > 0) {
2865: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',
2866: \%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
2867: } else {
2868: $textline = "<b>$lt{'twnp'}</b>";
2869: }
2870: &Apache::loncommon::content_type($r,'text/html');
2871: $r->send_http_header;
2872: $r->print (<<ENDREDIR);
2873: <html>
2874: <head>
2875: <title>New posts marked as read</title>
2876: <meta http-equiv="pragma" content="no-cache" />
2877: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
2878: </head>
2879: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
2880: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
2881: $textline
2882: <form name="reldt" action="$feedurl" target="loncapaclient">
2883: </form>
2884: <br /><a href="$feedurl">Continue</a>
2885: </body>
2886: </html>
2887: ENDREDIR
2888: return OK;
2889: } elsif ($ENV{'form.modifydisp'}) {
2890: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($ENV{'form.modifydisp'});
2891: my ($dispchgA,$dispchgB,$markchg,$toggchg) =
2892: split(/_/,$ENV{'form.changes'});
2893: &print_display_options($r,$symb,$ENV{'form.previous'},$dispchgA,
2894: $dispchgB,$markchg,$toggchg,$feedurl);
2895: return OK;
2896: } elsif ($ENV{'form.markondisp'} || $ENV{'form.markonread'} ||
2897: $ENV{'form.allposts'} || $ENV{'form.onlyunread'} ||
2898: $ENV{'form.onlyunmark'} || $ENV{'form.toggoff'} ||
2899: $ENV{'form.toggon'} || $ENV{'form.markread'}) {
2900: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($ENV{'form.symb'});
2901: my %discinfo;
2902: # ------------------------ Modify setting for read/unread toggle for each post
2903: if ($ENV{'form.toggoff'}) { $discinfo{$symb.'_readtoggle'}=0; }
2904: if ($ENV{'form.toggon'}) { $discinfo{$symb.'_readtoggle'}=1; }
2905: # --------- Modify setting for identification of 'NEW' posts in this discussion
2906: if ($ENV{'form.markondisp'}) {
2907: $discinfo{$symb.'_lastread'} = time;
2908: $discinfo{$symb.'_markondisp'} = 1;
2909: }
2910: if ($ENV{'form.markonread'}) {
2911: if ( $ENV{'form.previous'} > 0 ) {
2912: $discinfo{$symb.'_lastread'} = $ENV{'form.previous'};
2913: }
2914: $discinfo{$symb.'_markondisp'} = 0;
2915: }
2916: # --------------------------------- Modify display setting for this discussion
2917: if ($ENV{'form.allposts'}) {
2918: $discinfo{$symb.'_showonlyunread'} = 0;
2919: $discinfo{$symb.'_showonlyunmark'} = 0;
2920: }
2921: if ($ENV{'form.onlyunread'}) { $discinfo{$symb.'_showonlyunread'} = 1; }
2922: if ($ENV{'form.onlyunmark'}) { $discinfo{$symb.'_showonlyunmark'} = 1; }
2923: # ----------------------------------------------------- Mark new posts not NEW
2924: if ($ENV{'form.markread'}) { $discinfo{$symb.'_lastread'} = time; }
2925: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',
2926: \%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
2927: my $previous=$ENV{'form.previous'};
2928: if ($ENV{'form.markondisp'}) { $previous=undef; }
2929: &redirect_back($r,$feedurl,&mt('Changed display status').'<br />',
2930: '0','0','',$previous);
2931: return OK;
2932: } elsif (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
2933: # ----------------------------------------------------------------- Hide/unhide
2934: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
2935: my ($symb,$idx)=split(/\:\:\:/,$entry);
2936: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
2937:
2938: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
2939: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2940: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2941:
2942: my $currenthidden=$contrib{'hidden'};
2943: my $currentstudenthidden=$contrib{'studenthidden'};
2944:
2945: my $crs='/'.$ENV{'request.course.id'};
2946: if ($ENV{'request.course.sec'}) {
2947: $crs.='_'.$ENV{'request.course.sec'};
2948: }
2949: $crs=~s/\_/\//g;
2950: my $seeid=&Apache::lonnet::allowed('rin',$crs);
2951:
2952: if ($ENV{'form.hide'}) {
2953: $currenthidden.='.'.$idx.'.';
2954: unless ($seeid) {
2955: $currentstudenthidden.='.'.$idx.'.';
2956: }
2957: } else {
2958: $currenthidden=~s/\.$idx\.//g;
2959: }
2960: my %newhash=('hidden' => $currenthidden);
2961: if ( ($ENV{'form.hide'}) && (!$seeid) ) {
2962: $newhash{'studenthidden'} = $currentstudenthidden;
2963: }
2964:
2965: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
2966: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2967: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2968:
2969: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
2970: '0','0','',$ENV{'form.previous'});
2971: return OK;
2972: } elsif ($ENV{'form.cmd'}=~/^(threadedoff|threadedon)$/) {
2973: my ($symb,$feedurl)=&get_feedurl_and_clean_symb($ENV{'form.symb'});
2974: if ($ENV{'form.cmd'} eq 'threadedon') {
2975: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
2976: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
2977: } else {
2978: &Apache::lonnet::del('environment',['threadeddiscussion']);
2979: &Apache::lonnet::delenv('environment\.threadeddiscussion');
2980: }
2981: &redirect_back($r,$feedurl,&mt('Changed discussion view mode').'<br />',
2982: '0','0','',$ENV{'form.previous'});
2983: return OK;
2984: } elsif ($ENV{'form.deldisc'}) {
2985: # --------------------------------------------------------------- Hide for good
2986: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.deldisc'});
2987: ($symb,my $feedurl)=&get_feedurl_and_clean_symb($symb);
2988: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
2989: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2990: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2991: my %newhash=('deleted' => $contrib{'deleted'}.".$idx.");
2992: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
2993: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
2994: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
2995: &redirect_back($r,$feedurl,&mt('Changed discussion status').'<br />',
2996: '0','0','',$ENV{'form.previous'});
2997: return OK;
2998: } elsif ($ENV{'form.preview'}) {
2999: # -------------------------------------------------------- User wants a preview
3000: &show_preview($r);
3001: return OK;
3002: } elsif ($ENV{'form.attach'}) {
3003: # -------------------------------------------------------- Work on attachments
3004: &Apache::loncommon::content_type($r,'text/html');
3005: $r->send_http_header;
3006: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['subject','comment','addnewattach','delnewattach','timestamp','numoldver','idx','anondiscuss','discuss']);
3007: my (@currnewattach,@currdelold,@keepold);
3008: &process_attachments(\@currnewattach,\@currdelold,\@keepold);
3009: if (exists($ENV{'form.addnewattach.filename'})) {
3010: unless (length($ENV{'form.addnewattach'})>131072) {
3011: my $subdir = 'feedback/'.$ENV{'form.timestamp'};
3012: my $newattachment=&Apache::lonnet::userfileupload('addnewattach',undef,$subdir);
3013: push @currnewattach, $newattachment;
3014: }
3015: }
3016: my $attachmenturls;
3017: my ($symb) = &get_feedurl_and_clean_symb($ENV{'form.attach'});
3018: my $idx = $ENV{'form.idx'};
3019: if ($idx) {
3020: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
3021: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
3022: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
3023: $attachmenturls = $contrib{$idx.':attachmenturl'};
3024: }
3025: &modify_attachments($r,\@currnewattach,\@currdelold,$symb,$idx,
3026: $attachmenturls);
3027: return OK;
3028: } elsif ($ENV{'form.export'}) {
3029: &Apache::loncommon::content_type($r,'text/html');
3030: $r->send_http_header;
3031: my ($symb,$feedurl) = &get_feedurl_and_clean_symb($ENV{'form.export'});
3032: my $mode='board';
3033: my $status='OPEN';
3034: my $previous=$ENV{'form.previous'};
3035: if ($feedurl =~ /\.(problem|exam|quiz|assess|survey|form|library)$/) {
3036: $mode='problem';
3037: $status=$Apache::inputtags::status[-1];
3038: }
3039: my $discussion = &list_discussion($mode,$status,$symb);
3040: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion');
3041: $r->print($bodytag.$discussion);
3042: return OK;
3043: } else {
3044: # ------------------------------------------------------------- Normal feedback
3045: my $feedurl=$ENV{'form.postdata'};
3046: $feedurl=~s/^http\:\/\///;
3047: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
3048: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
3049: $feedurl=~s/\?.+$//;
3050:
3051: my $symb;
3052: if ($ENV{'form.replydisc'}) {
3053: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0];
3054: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3055: $feedurl=&Apache::lonnet::clutter($url);
3056: } elsif ($ENV{'form.editdisc'}) {
3057: $symb=(split(/\:\:\:/,$ENV{'form.editdisc'}))[0];
3058: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3059: $feedurl=&Apache::lonnet::clutter($url);
3060: } elsif ($ENV{'form.origpage'}) {
3061: $symb="";
3062: } else {
3063: $symb=&Apache::lonnet::symbread($feedurl);
3064: }
3065: unless ($symb) {
3066: $symb=$ENV{'form.symb'};
3067: if ($symb) {
3068: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
3069: $feedurl=&Apache::lonnet::clutter($url);
3070: }
3071: }
3072: &Apache::lonenc::check_decrypt(\$symb);
3073: my $goahead=1;
3074: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
3075: unless ($symb) { $goahead=0; }
3076: }
3077: # backward compatibility (bulletin boards used to be 'wrapped')
3078: if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
3079: $feedurl=~s|^/adm/wrapper||;
3080: }
3081: if (!$goahead) {
3082: # Ambiguous Problem Resource
3083: $r->internal_redirect('/adm/ambiguous');
3084: return OK;
3085: }
3086: # Go ahead with feedback, no ambiguous reference
3087: unless (
3088: (
3089: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
3090: )
3091: ||
3092: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
3093: ||
3094: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
3095: ) {
3096: &Apache::loncommon::content_type($r,'text/html');
3097: $r->send_http_header;
3098: # Unable to give feedback
3099: &no_redirect_back($r,$feedurl);
3100: }
3101: # --------------------------------------------------- Print login screen header
3102: unless ($ENV{'form.sendit'}) {
3103: &Apache::loncommon::content_type($r,'text/html');
3104: $r->send_http_header;
3105: my $options=&screen_header($feedurl,$symb);
3106: if ($options) {
3107: &mail_screen($r,$feedurl,$options);
3108: } else {
3109: &fail_redirect($r,$feedurl);
3110: }
3111: return OK;
3112: }
3113:
3114: # Get previous user input
3115: my $prevattempts=&Apache::loncommon::get_previous_attempt(
3116: $symb,$ENV{'user.name'},$ENV{'user.domain'},
3117: $ENV{'request.course.id'});
3118:
3119: # Get output from resource
3120: my $usersaw=&resource_output($feedurl);
3121:
3122: # Get resource answer (need to allow student to view grades for this to work)
3123: &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
3124: my $useranswer=&Apache::loncommon::get_student_answers(
3125: $symb,$ENV{'user.name'},$ENV{'user.domain'},
3126: $ENV{'request.course.id'});
3127: &Apache::lonnet::delenv('allowed.vgr');
3128: # Get attachments, if any, and not too large
3129: my $attachmenturl='';
3130: if (($ENV{'form.origpage'}) || ($ENV{'form.editdisc'}) ||
3131: ($ENV{'form.replydisc'})) {
3132: my ($symb,$idx);
3133: if ($ENV{'form.replydisc'}) {
3134: ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'});
3135: } elsif ($ENV{'form.editdisc'}) {
3136: ($symb,$idx)=split(/\:\:\:/,$ENV{'form.editdisc'});
3137: } elsif ($ENV{'form.origpage'}) {
3138: $symb = $ENV{'form.symb'};
3139: }
3140: &Apache::lonenc::check_decrypt(\$symb);
3141: my @currnewattach = ();
3142: my @deloldattach = ();
3143: my @keepold = ();
3144: &process_attachments(\@currnewattach,\@deloldattach,\@keepold);
3145: $symb=~s|(bulletin___\d+___)adm/wrapper/|$1|;
3146: $attachmenturl=&construct_attachmenturl(\@currnewattach,\@keepold,$symb,$idx);
3147: } elsif ($ENV{'form.attachment.filename'}) {
3148: unless (length($ENV{'form.attachment'})>131072) {
3149: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback');
3150: }
3151: }
3152: # Filter HTML out of message (could be nasty)
3153: my $message=&clear_out_html($ENV{'form.comment'});
3154:
3155: # Assemble email
3156: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
3157: $usersaw,$useranswer);
3158:
3159: # Who gets this?
3160: my ($typestyle,%to) = &decide_receiver($feedurl);
3161:
3162: # Actually send mail
3163: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
3164: $attachmenturl,%to);
3165:
3166: # Discussion? Store that.
3167:
3168: my $numpost=0;
3169: if ($ENV{'form.discuss'} || $ENV{'form.anondiscuss'}) {
3170: my $subject = &clear_out_html($ENV{'form.subject'});
3171: my $anonmode=(defined($ENV{'form.anondiscuss'}));
3172: $typestyle.=&adddiscuss($symb,$message,$anonmode,$attachmenturl,
3173: $subject);
3174: $numpost++;
3175: }
3176:
3177: # Receipt screen and redirect back to where came from
3178: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status,$ENV{'form.previous'});
3179: }
3180: return OK;
3181: }
3182:
3183: sub wrap_symb {
3184: my ($ressymb)=@_;
3185: if ($ressymb =~ /bulletin___\d+___/) {
3186: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
3187: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
3188: }
3189: }
3190: return $ressymb;
3191: }
3192: sub dewrapper {
3193: my ($feedurl)=@_;
3194: if ($$feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
3195: $$feedurl=~s|^/adm/wrapper||;
3196: }
3197: }
3198:
3199: sub get_feedurl {
3200: my ($symb)=@_;
3201: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
3202: my $feedurl = &Apache::lonnet::clutter($url);
3203: &dewrapper(\$feedurl);
3204: return $feedurl;
3205: }
3206:
3207: sub get_feedurl_and_clean_symb {
3208: my ($symb)=@_;
3209: &Apache::lonenc::check_decrypt(\$symb);
3210: # backward compatibility (bulletin boards used to be 'wrapped')
3211: unless ($symb =~ m|bulletin___\d+___adm/wrapper|) {
3212: $symb=~s|(bulletin___\d+___)|$1adm/wrapper|;
3213: }
3214: my $feedurl = &get_feedurl($symb);
3215: return ($symb,$feedurl);
3216: }
3217: 1;
3218: __END__
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