1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.96 2004/06/28 16:41:08 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:
40: sub discussion_open {
41: my ($status)=@_;
42: if (defined($status) &&
43: !($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
44: || $status eq 'OPEN')) {
45: return 0;
46: }
47: my $close=&Apache::lonnet::EXT('resource.0.discussend');
48: if (defined($close) && $close ne '' && $close < time) {
49: return 0;
50: }
51: return 1;
52: }
53:
54: sub discussion_visible {
55: my ($status)=@_;
56: if (not &discussion_open($status)) {
57: my $hidden=&Apache::lonnet::EXT('resource.0.discusshide');
58: if (lc($hidden) eq 'yes' or $hidden eq '' or !defined($hidden)) {
59: return 0;
60: }
61: }
62: return 1;
63: }
64:
65: sub list_discussion {
66: my ($mode,$status,$symb)=@_;
67:
68: my $outputtarget=$ENV{'form.grade_target'};
69: if (not &discussion_visible($status)) { return ''; }
70: my @bgcols = ("#cccccc","#eeeeee");
71: my $discussiononly=0;
72: if ($mode eq 'board') { $discussiononly=1; }
73: unless ($ENV{'request.course.id'}) { return ''; }
74: my $crs='/'.$ENV{'request.course.id'};
75: if ($ENV{'request.course.sec'}) {
76: $crs.='_'.$ENV{'request.course.sec'};
77: }
78: $crs=~s/\_/\//g;
79: unless ($symb) {
80: $symb=&Apache::lonnet::symbread();
81: }
82: unless ($symb) { return ''; }
83:
84: # backward compatibility (bulletin boards used to be 'wrapped')
85: my $ressymb=$symb;
86: if ($mode eq 'board') {
87: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
88: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
89: }
90: }
91:
92: # Get discussion display settings for this discussion
93: my $lastkey = $ressymb.'_lastread';
94: my $showkey = $ressymb.'_showonlyunread';
95: my $visitkey = $ressymb.'_visit';
96: my $ondispkey = $ressymb.'_markondisp';
97: my %dischash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$lastkey,$showkey,$visitkey,$ondispkey],$ENV{'user.domain'},$ENV{'user.name'});
98: my %discinfo = ();
99: my $showonlyunread = 0;
100: my $markondisp = 0;
101: my $prevread = 0;
102: my $previous = 0;
103: my $visit = 0;
104: my $newpostsflag = 0;
105:
106: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
107: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']);
108: $previous = $ENV{'form.previous'};
109: if ($previous > 0) {
110: $prevread = $previous;
111: } elsif (defined($dischash{$lastkey})) {
112: unless ($dischash{$lastkey} eq '') {
113: $prevread = $dischash{$lastkey};
114: }
115: }
116:
117: # Get discussion display default settings for user
118: my %userenv = &Apache::lonnet::get('environment',['discdisplay','discmarkread'],$ENV{'user.domain'},$ENV{'user.name'});
119: my $discdisplay=$userenv{'discdisplay'};
120: if ($discdisplay eq 'unread') {
121: $showonlyunread = 1;
122: }
123: my $discmarkread=$userenv{'discmarkread'};
124: if ($discmarkread eq 'ondisp') {
125: $markondisp = 1;
126: }
127:
128: # Override user's default if user specified display setting for this discussion
129: if (defined($dischash{$ondispkey})) {
130: $markondisp = $dischash{$ondispkey};
131: }
132: if ($markondisp) {
133: $discinfo{$lastkey} = time;
134: }
135:
136: if (defined($dischash{$showkey})) {
137: $showonlyunread = $dischash{$showkey};
138: }
139:
140: if (defined($dischash{$visitkey})) {
141: $visit = $dischash{$visitkey};
142: }
143: $visit ++;
144:
145: my $seeid=&Apache::lonnet::allowed('rin',$crs);
146: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
147: && ($symb=~/\.(problem|exam|quiz|assess|survey|form)$/));
148: my @discussionitems=();
149: my %contrib=&Apache::lonnet::restore($ressymb,$ENV{'request.course.id'},
150: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
151: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
152: my $visible=0;
153: my @depth=();
154: my @original=();
155: my @index=();
156: my @replies=();
157: my %alldiscussion=();
158: my %notshown = ();
159: my %newitem = ();
160: my $maxdepth=0;
161:
162: my $target='';
163: unless ($ENV{'browser.interface'} eq 'textual' ||
164: $ENV{'environment.remote'} eq 'off' ) {
165: $target='target="LONcom"';
166: }
167:
168: my $now = time;
169: $discinfo{$visitkey} = $visit;
170:
171: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
172:
173: if ($contrib{'version'}) {
174: my $oldest = $contrib{'1:timestamp'};
175: if ($prevread eq '0') {
176: $prevread = $oldest-1;
177: }
178: for (my $id=1;$id<=$contrib{'version'};$id++) {
179: my $idx=$id;
180: my $posttime = $contrib{$idx.':timestamp'};
181: if ($prevread <= $posttime) {
182: $newpostsflag = 1;
183: }
184: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
185: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
186: my $origindex='0.';
187: if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) {
188: # this is a follow-up message
189: $original[$idx]=$original[$contrib{$idx.':replyto'}];
190: $depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1;
191: $origindex=$index[$contrib{$idx.':replyto'}];
192: if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; }
193: } else {
194: # this is an original message
195: $original[$idx]=0;
196: $depth[$idx]=0;
197: }
198: if ($replies[$depth[$idx]]) {
199: $replies[$depth[$idx]]++;
200: } else {
201: $replies[$depth[$idx]]=1;
202: }
203: unless ((($hidden) && (!$seeid)) || ($deleted)) {
204: $visible++;
205: my $message=$contrib{$idx.':message'};
206: $message=~s/\n/\<br \/\>/g;
207: $message=&Apache::lontexconvert::msgtexconverted($message);
208: my $subject=$contrib{$idx.':subject'};
209: if (defined($subject)) {
210: $subject=~s/\n/\<br \/\>/g;
211: $subject=&Apache::lontexconvert::msgtexconverted($subject);
212: }
213: if ($contrib{$idx.':attachmenturl'}) {
214: my ($fname)
215: =($contrib{$idx.':attachmenturl'}=~m|/([^/]+)$|);
216: &Apache::lonnet::allowuploaded('/adm/feedback',
217: $contrib{$idx.':attachmenturl'});
218: $message.='<p>'.&mt('Attachment').
219: ': <a href="'.$contrib{$idx.':attachmenturl'}.'"><tt>'.
220: $fname.'</tt></a></p>';
221: }
222: if ($message) {
223: if ($hidden) {
224: $message='<font color="#888888">'.$message.'</font>';
225: }
226: my $screenname=&Apache::loncommon::screenname(
227: $contrib{$idx.':sendername'},
228: $contrib{$idx.':senderdomain'});
229: my $plainname=&Apache::loncommon::nickname(
230: $contrib{$idx.':sendername'},
231: $contrib{$idx.':senderdomain'});
232:
233: my $sender=&mt('Anonymous');
234: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
235: $sender=&Apache::loncommon::aboutmewrapper(
236: $plainname,
237: $contrib{$idx.':sendername'},
238: $contrib{$idx.':senderdomain'}).' ('.
239: $contrib{$idx.':sendername'}.' at '.
240: $contrib{$idx.':senderdomain'}.')';
241: if ($contrib{$idx.':anonymous'}) {
242: $sender.=' ['.&mt('anonymous').'] '.
243: $screenname;
244: }
245: if ($seeid) {
246: if ($hidden) {
247: $sender.=' <a href="/adm/feedback?unhide='.
248: $ressymb.':::'.$idx;
249: if ($newpostsflag) {
250: $sender .= '&previous='.$prevread;
251: }
252: $sender .= '">'.&mt('Make Visible').'</a>';
253: } else {
254: $sender.=' <a href="/adm/feedback?hide='.
255: $ressymb.':::'.$idx;
256: if ($newpostsflag) {
257: $sender .= '&previous='.$prevread;
258: }
259: $sender .= '">'.&mt('Hide').'</a>';
260: }
261: $sender.=' <a href="/adm/feedback?deldisc='.
262: $ressymb.':::'.$idx;
263: if ($newpostsflag) {
264: $sender .= '&previous='.$prevread;
265: }
266: $sender .= '">'.&mt('Delete').'</a>';
267: }
268: } else {
269: if ($screenname) {
270: $sender='<i>'.$screenname.'</i>';
271: }
272: }
273: if (&discussion_open($status) &&
274: &Apache::lonnet::allowed('pch',
275: $ENV{'request.course.id'}.
276: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
277: $sender.=' <a href="/adm/feedback?replydisc='.
278: $ressymb.':::'.$idx;
279: if ($newpostsflag) {
280: $sender .= '&previous='.$prevread;
281: }
282: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
283: }
284: my $vgrlink;
285: if ($viewgrades) {
286: $vgrlink=&Apache::loncommon::submlink('Submissions',
287: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb);
288: }
289: #figure out at what position this needs to print
290: my $thisindex=$idx;
291: if ($ENV{'environment.threadeddiscussion'}) {
292: $thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2);
293: }
294: $alldiscussion{$thisindex}=$idx;
295: $index[$idx]=$thisindex;
296: my $spansize = 2;
297: if ($showonlyunread && $prevread > $posttime) {
298: $notshown{$idx} = 1;
299: } else {
300: if ($prevread > 0 && $prevread <= $posttime) {
301: $newitem{$idx} = 1;
302: $discussionitems[$idx] .= '
303: <p><table border="0" width="100%">
304: <tr><td align="left"><font color="#FF0000"><b>NEW</b></font></td>';
305: } else {
306: $newitem{$idx} = 0;
307: $discussionitems[$idx] .= '
308: <p><table border="0" width="100%">
309: <tr><td align="left"> </td>';
310: }
311: $discussionitems[$idx] .= '<td align ="left"> '.
312: '<b>'.$subject.'</b> '.
313: $sender.'</b> '.$vgrlink.' ('.
314: localtime($posttime).')</td></tr>'.
315: '</table><blockquote>'.$message.'</blockquote></p>';
316: }
317: }
318: }
319: }
320: }
321:
322: my $discussion='';
323:
324: my $function = &Apache::loncommon::get_users_function();
325: my $color = &Apache::loncommon::designparm($function.'.tabbg',
326: $ENV{'user.domain'});
327: my %lt = &Apache::lonlocal::texthash(
328: 'cuse' => 'Current settings for this discussion',
329: 'allposts' => 'All posts',
330: 'unread' => 'New posts only',
331: 'ondisp' => 'Once displayed',
332: 'onmark' => 'Once marked read',
333: 'disa' => 'Posts to be displayed',
334: 'npce' => 'Posts cease to be marked "NEW"',
335: 'chgt' => 'Change to ',
336: );
337:
338: my $currdisp = $lt{'allposts'};
339: my $currmark = $lt{'onmark'};
340: my $dispchange = $lt{'unread'};
341: my $markchange = $lt{'ondisp'};
342: my $displink = '/adm/feedback?onlyunread='.$ressymb;
343: my $marklink = '/adm/feedback?markondisp='.$ressymb;
344:
345: if ($markondisp) {
346: $currmark = $lt{'ondisp'};
347: $markchange = $lt{'onmark'};
348: $marklink = '/adm/feedback?markonread='.$ressymb;
349: if ($newpostsflag) {
350: $marklink .= '&previous='.$prevread;
351: }
352: }
353:
354: if ($showonlyunread) {
355: $currdisp = $lt{'unread'};
356: $dispchange = $lt{'allposts'};
357: $displink = '/adm/feedback?allposts='.$ressymb;
358: }
359:
360: if ($newpostsflag) {
361: $displink .= '&previous='.$prevread;
362: }
363:
364: if ($visible) {
365: # Print the discusssion
366: if ($outputtarget ne 'tex') {
367: $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
368: my $colspan=$maxdepth+1;
369: $discussion .= '<tr bgcolor="#FFFFFF"><td colspan="'.$colspan.'" valign="top">'.
370: '<table border="0" bgcolor="#FFFFFF" width="100%" cellspacing="2" cellpadding="2">'.
371: '<tr><td align="left"><b>'.$lt{'cuse'}.'</b></td><td> </td><td align="right"><b>'.$lt{'chgt'}.'</b></td></tr>'.
372: '<tr><td>'.$lt{'disa'}.': <i>'.$currdisp.'</i></td><td> </td><td align="right"><a href="'.$displink.'">'.$dispchange.'</a></td></tr>'.
373: '<tr><td>'.$lt{'npce'}.': <i>'.$currmark.'</i></td><td> </td><td align="right"><a href="'.$marklink.'">'.$markchange.'</a></td></tr>'.
374: '</table></td></tr>'.
375: '<tr><td bgcolor="#DDDDBB" colspan="'.$colspan.'">'.
376: '<table border="0" width="100%" bgcolor="#DDDDBB"><tr>';
377: if ($visible>2) {
378: $discussion.='<td align="left">'.
379: '<a href="/adm/feedback?threadedon='.$ressymb;
380: if ($newpostsflag) {
381: $discussion .= '&previous='.$prevread;
382: }
383: $discussion .='">'.&mt('Threaded View').'</a> '.
384: '<a href="/adm/feedback?threadedoff='.$ressymb;
385: if ($newpostsflag) {
386: $discussion .= '&previous='.$prevread;
387: }
388: $discussion .='">'.&mt('Chronological View').'</a> </td>';
389: }
390: if ($newpostsflag) {
391: if (!$markondisp) {
392: $discussion .='<td align="right"><a href="/adm/feedback?markread='.$ressymb.'">'.&mt('Mark new posts as read').'</a> ';
393: } else {
394: $discussion .= '<td> </td>';
395: }
396: } else {
397: $discussion .= '<td> </td>';
398: }
399: $discussion .= '</tr></table></td></tr>';
400: } else {
401: $discussion.='\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}'.
402: '\textbf{DISCUSSIONS}\makebox[2 cm][b]{\hrulefill}'.
403: '\vskip 0 mm\noindent\textbf{'.$lt{'cuse'}.'}:\vskip 0 mm'.
404: '\noindent\textbf{'.$lt{'disa'}.'}: \textit{'.$currdisp.'}\vskip 0 mm'.
405: '\noindent\textbf{'.$lt{'npce'}.'}: \textit{'.$currmark.'}';
406: }
407: my $numhidden = keys %notshown;
408: if ($numhidden > 0) {
409: my $colspan = $maxdepth+1;
410: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
411: '<a href="/adm/feedback?allposts='.$ressymb;
412: if ($newpostsflag) {
413: $discussion .= '&previous='.$prevread;
414: }
415: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
416: $numhidden.' '.&mt('previously viewed posts').
417: '<br/></td></tr>';
418: }
419: foreach (sort { $a <=> $b } keys %alldiscussion) {
420: unless ($notshown{$alldiscussion{$_}} eq '1') {
421: if ($outputtarget ne 'tex') {
422: $discussion.="\n<tr>";
423: } else {
424: $discussion.='\vskip 0 mm\noindent\makebox[2 cm][b]{\hrulefill}';
425: }
426: my $thisdepth=$depth[$alldiscussion{$_}];
427: if ($outputtarget ne 'tex') {
428: for (1..$thisdepth) {
429: $discussion.='<td> </td>';
430: }
431: }
432: my $colspan=$maxdepth-$thisdepth+1;
433: if ($outputtarget ne 'tex') {
434: $discussion.='<td bgcolor="'.$bgcols[$newitem{$alldiscussion{$_}}].'" colspan="'.$colspan.'">'.
435: $discussionitems[$alldiscussion{$_}].
436: '</td></tr>';
437: } else {
438: #cleanup block
439: $discussionitems[$alldiscussion{$_}]=~s/<table([^>]*)>/<table TeXwidth="90 mm">/;
440: $discussionitems[$alldiscussion{$_}]=~s/<tr([^>]*)><td([^>]*)>/<tr><td TeXwidth="20 mm" align="left">/;
441: my $threadinsert='';
442: if ($thisdepth > 0) {
443: $threadinsert='<br /><strong>Reply: '.$thisdepth.'</strong>';
444: }
445: $discussionitems[$alldiscussion{$_}]=~s/<\/td><td([^>]*)>/$threadinsert<\/td><td TeXwidth="65 mm" align="left">/;
446: $discussionitems[$alldiscussion{$_}]=~s/<a([^>]+)>(Hide|Delete|Reply|Submissions)<\/a>//g;
447: $discussionitems[$alldiscussion{$_}]=~s/(<b>|<\/b>|<\/a>|<a([^>]+)>)//g;
448:
449: #FIXME xmlparse can't be safely called from inside xmlparse
450: # due to the global variables that are use, the safe
451: # space etc. I expect this has unforseen issues that
452: # need resolving.
453:
454: $discussion.=&Apache::lonxml::xmlparse('','tex',$discussionitems[$alldiscussion{$_}]);
455: }
456: }
457: }
458: if ($outputtarget ne 'tex') {
459: $discussion.='</table><br /><br />';
460: }
461: }
462: if ($discussiononly) {
463: $discussion.=(<<ENDDISCUSS);
464: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
465: <input type="submit" name="discuss" value="Post Discussion" />
466: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
467: <input type="hidden" name="symb" value="$ressymb" />
468: <input type="hidden" name="sendit" value="true" />
469: <br />
470: <font size="1">Note: in anonymous discussion, your name is visible only to
471: course faculty</font><br />
472: <b>Title:</b> <input type="text" name="subject" value="" size="30" /><br /><br />
473: <textarea name="comment" cols="80" rows="14" wrap="hard"></textarea>
474: <p>
475: Attachment (128 KB max size): <input type="file" name="attachment" />
476: </p>
477: </form>
478: ENDDISCUSS
479: if ($outputtarget ne 'tex') {
480: $discussion.=&generate_preview_button();
481: }
482: } else {
483: if (&discussion_open($status) &&
484: &Apache::lonnet::allowed('pch',
485: $ENV{'request.course.id'}.
486: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
487: if ($outputtarget ne 'tex') {
488: $discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='.
489: $symb.':::" '.$target.'>'.
490: '<img src="/adm/lonMisc/chat.gif" border="0" />'.
491: &mt('Post Discussion').'</a></td></tr></table>';
492: }
493: }
494: }
495: return $discussion;
496: }
497:
498: sub mail_screen {
499: my ($r,$feedurl,$options) = @_;
500: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
501: '','onLoad="window.focus();"');
502: my $title=&Apache::lonnet::gettitle($feedurl);
503: if (!$title) { $title = $feedurl; }
504: my $quote='';
505: my $subject = '';
506: my $prevtag = '';
507: if ($ENV{'form.replydisc'}) {
508: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'});
509: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
510: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
511: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
512: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
513: my $message=$contrib{$idx.':message'};
514: $message=~s/\n/\<br \/\>/g;
515: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
516: if ($idx > 0) {
517: $subject = 'Re: '.$contrib{$idx.':subject'};
518: }
519: }
520: if ($ENV{'form.previous'}) {
521: $prevtag = '<input type="hidden" name="previous" value="'.$ENV{'form.previous'}.'" />';
522: }
523: }
524: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet();
525: my $htmlheader=&Apache::lonhtmlcommon::htmlareaheaders();
526: my $onsubmit='';
527: if ((&Apache::lonhtmlcommon::htmlareabrowser()) &&
528: (!&Apache::lonhtmlcommon::htmlareablocked())) {
529: $onsubmit='document.mailform.onsubmit();';
530: }
531: my $send=&mt('Send');
532: $r->print(<<ENDDOCUMENT);
533: <html>
534: <head>
535: <title>The LearningOnline Network with CAPA</title>
536: <meta http-equiv="pragma" content="no-cache"></meta>
537: $htmlheader
538: <script type="text/javascript">
539: //<!--
540: function gosubmit() {
541: var rec=0;
542: if (typeof(document.mailform.elements.author)!="undefined") {
543: if (document.mailform.elements.author.checked) {
544: rec=1;
545: }
546: }
547: if (typeof(document.mailform.elements.question)!="undefined") {
548: if (document.mailform.elements.question.checked) {
549: rec=1;
550: }
551: }
552: if (typeof(document.mailform.elements.course)!="undefined") {
553: if (document.mailform.elements.course.checked) {
554: rec=1;
555: }
556: }
557: if (typeof(document.mailform.elements.policy)!="undefined") {
558: if (document.mailform.elements.policy.checked) {
559: rec=1;
560: }
561: }
562: if (typeof(document.mailform.elements.discuss)!="undefined") {
563: if (document.mailform.elements.discuss.checked) {
564: rec=1;
565: }
566: }
567: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
568: if (document.mailform.elements.anondiscuss.checked) {
569: rec=1;
570: }
571: }
572:
573: if (rec) {
574: $onsubmit
575: document.mailform.submit();
576: } else {
577: alert('Please check a feedback type.');
578: }
579: }
580: //-->
581: </script>
582: </head>
583: $bodytag
584: <h2><tt>$title</tt></h2>
585: <form action="/adm/feedback" method="post" name="mailform"
586: enctype="multipart/form-data">
587: $prevtag
588: <input type="hidden" name="postdata" value="$feedurl" />
589: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" />
590: Please check at least one of the following feedback types:
591: $options<hr />
592: $quote
593: <p>My question/comment/feedback:</p>
594: <p>
595: $latexHelp
596: Title: <input type="text" name="subject" size="30" value="$subject" /></p>
597: <p>
598: <textarea name="comment" id="comment" cols="60" rows="10" wrap="hard">
599: </textarea></p>
600: <p>
601: Attachment (128 KB max size): <input type="file" name="attachment" />
602: </p>
603: <p>
604: <input type="hidden" name="sendit" value="1" />
605: <input type="button" value="$send" onClick='gosubmit();' />
606: </p>
607: </form>
608: ENDDOCUMENT
609: $r->print(&generate_preview_button().
610: &Apache::lonhtmlcommon::htmlareaselectactive('comment').
611: '</body></html>');
612: }
613:
614: sub fail_redirect {
615: my ($r,$feedurl) = @_;
616: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
617: $r->print (<<ENDFAILREDIR);
618: <html>
619: <head><title>Feedback not sent</title>
620: <meta http-equiv="pragma" content="no-cache" />
621: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
622: </head>
623: <body bgcolor="#FFFFFF">
624: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
625: <b>Sorry, no recipients ...</b>
626: </body>
627: </html>
628: ENDFAILREDIR
629: }
630:
631: sub redirect_back {
632: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status,$previous) = @_;
633: my $prevtag = '';
634: my $qrystr = '';
635: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
636: if ($previous > 0) {
637: $qrystr = 'previous='.$previous;
638: if ($feedurl =~ /\?register=1/) {
639: $feedurl .= '&'.$qrystr;
640: } else {
641: $feedurl .= '?'.$qrystr;
642: }
643: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
644: }
645: $r->print (<<ENDREDIR);
646: <html>
647: <head>
648: <title>Feedback sent</title>
649: <meta http-equiv="pragma" content="no-cache" />
650: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
651: </head>
652: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
653: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
654: $typestyle
655: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
656: <font color="red">$status</font>
657: <form name="reldt" action="$feedurl" target="loncapaclient">
658: $prevtag
659: </form>
660: </body>
661: </html>
662: ENDREDIR
663: }
664:
665: sub no_redirect_back {
666: my ($r,$feedurl) = @_;
667: $r->print (<<ENDNOREDIR);
668: <html>
669: <head><title>Feedback not sent</title>
670: <meta http-equiv="pragma" content="no-cache" />
671: ENDNOREDIR
672:
673: if ($feedurl!~/^\/adm\/feedback/) {
674: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
675: }
676:
677: $r->print (<<ENDNOREDIRTWO);
678: </head>
679: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
680: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
681: <b>Sorry, no feedback possible on this resource ...</b>
682: </body>
683: </html>
684: ENDNOREDIRTWO
685: }
686:
687: sub screen_header {
688: my ($feedurl) = @_;
689: my $msgoptions='';
690: my $discussoptions='';
691: unless ($ENV{'form.replydisc'}) {
692: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
693: $msgoptions=
694: '<p><input type="checkbox" name="author" /> '.
695: &mt('Feedback to resource author').'</p>';
696: }
697: if (&feedback_available(1)) {
698: $msgoptions.=
699: '<br /><input type="checkbox" name="question" /> '.
700: &mt('Question about resource content');
701: }
702: if (&feedback_available(0,1)) {
703: $msgoptions.=
704: '<br /><input type="checkbox" name="course" /> '.
705: &mt('Question/Comment/Feedback about course content');
706: }
707: if (&feedback_available(0,0,1)) {
708: $msgoptions.=
709: '<br /><input type="checkbox" name="policy" /> '.
710: &mt('Question/Comment/Feedback about course policy');
711: }
712: }
713: if ($ENV{'request.course.id'}) {
714: if (&discussion_open() &&
715: &Apache::lonnet::allowed('pch',
716: $ENV{'request.course.id'}.
717: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
718: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
719: ($ENV{'form.replydisc'}?' checked="1"':'').' /> '.
720: &mt('Contribution to course discussion of resource');
721: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '.
722: &mt('Anonymous contribution to course discussion of resource').
723: ' <i>('.&mt('name only visible to course faculty').')</i>';
724: }
725: }
726: if ($msgoptions) { $msgoptions='<h2><img src="/adm/lonMisc/feedback.gif" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
727: if ($discussoptions) {
728: $discussoptions='<h2><img src="/adm/lonMisc/chat.gif" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
729: return $msgoptions.$discussoptions;
730: }
731:
732: sub resource_output {
733: my ($feedurl) = @_;
734: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
735: $usersaw=~s/\<body[^\>]*\>//gi;
736: $usersaw=~s/\<\/body\>//gi;
737: $usersaw=~s/\<html\>//gi;
738: $usersaw=~s/\<\/html\>//gi;
739: $usersaw=~s/\<head\>//gi;
740: $usersaw=~s/\<\/head\>//gi;
741: $usersaw=~s/action\s*\=/would_be_action\=/gi;
742: return $usersaw;
743: }
744:
745: sub clear_out_html {
746: my ($message,$override)=@_;
747: unless (&Apache::lonhtmlcommon::htmlareablocked()) { return $message; }
748: my $cid=$ENV{'request.course.id'};
749: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
750: ($override)) {
751: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
752: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
753: # <SUP>
754: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
755: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
756: M=>1, SUB=>1, SUP=>1, SPAN=>1,
757: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1);
758:
759: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
760: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
761: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
762: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
763: } else {
764: $message=~s/\</\<\;/g;
765: $message=~s/\>/\>\;/g;
766: }
767: return $message;
768: }
769:
770: sub assemble_email {
771: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
772: my $email=<<"ENDEMAIL";
773: Refers to <a href="$feedurl">$feedurl</a>
774:
775: $message
776: ENDEMAIL
777: my $citations=<<"ENDCITE";
778: <h2>Previous attempts of student (if applicable)</h2>
779: $prevattempts
780: <br /><hr />
781: <h2>Original screen output (if applicable)</h2>
782: $usersaw
783: <h2>Correct Answer(s) (if applicable)</h2>
784: $useranswer
785: ENDCITE
786: return ($email,$citations);
787: }
788:
789: sub secapply {
790: my $rec=shift;
791: my $defaultflag=shift;
792: $rec=~s/\s+//g;
793: $rec=~s/\@/\:/g;
794: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
795: if ($sections) {
796: foreach (split(/\;/,$sections)) {
797: if (($_ eq $ENV{'request.course.sec'}) ||
798: ($defaultflag && ($_ eq '*'))) {
799: return $adr;
800: }
801: }
802: } else {
803: return $rec;
804: }
805: return '';
806: }
807:
808: sub decide_receiver {
809: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
810: my $typestyle='';
811: my %to=();
812: if ($ENV{'form.author'}||$author) {
813: $typestyle.='Submitting as Author Feedback<br>';
814: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
815: $to{$2.':'.$1}=1;
816: }
817: if ($ENV{'form.question'}||$question) {
818: $typestyle.='Submitting as Question<br>';
819: foreach (split(/\,/,
820: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
821: ) {
822: my $rec=&secapply($_,$defaultflag);
823: if ($rec) { $to{$rec}=1; }
824: }
825: }
826: if ($ENV{'form.course'}||$course) {
827: $typestyle.='Submitting as Comment<br />';
828: foreach (split(/\,/,
829: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
830: ) {
831: my $rec=&secapply($_,$defaultflag);
832: if ($rec) { $to{$rec}=1; }
833: }
834: }
835: if ($ENV{'form.policy'}||$policy) {
836: $typestyle.='Submitting as Policy Feedback<br />';
837: foreach (split(/\,/,
838: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
839: ) {
840: my $rec=&secapply($_,$defaultflag);
841: if ($rec) { $to{$rec}=1; }
842: }
843: }
844: if ((scalar(%to) eq '0') && (!$defaultflag)) {
845: ($typestyle,%to)=
846: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
847: }
848: return ($typestyle,%to);
849: }
850:
851: sub feedback_available {
852: my ($question,$course,$policy)=@_;
853: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
854: return scalar(%to);
855: }
856:
857: sub send_msg {
858: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
859: my $status='';
860: my $sendsomething=0;
861: foreach (keys %to) {
862: if ($_) {
863: my $declutter=&Apache::lonnet::declutter($feedurl);
864: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
865: 'Feedback ['.$declutter.']',$email,$citations,$feedurl,
866: $attachmenturl)=~/ok/) {
867: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
868: } else {
869: $sendsomething++;
870: }
871: }
872: }
873:
874: my %record=&Apache::lonnet::restore('_feedback');
875: my ($temp)=keys %record;
876: unless ($temp=~/^error\:/) {
877: my %newrecord=();
878: $newrecord{'resource'}=$feedurl;
879: $newrecord{'subnumber'}=$record{'subnumber'}+1;
880: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
881: $status.='<br />'.&mt('Not registered').'<br />';
882: }
883: }
884:
885: return ($status,$sendsomething);
886: }
887:
888: sub adddiscuss {
889: my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
890: my $status='';
891: if (&discussion_open() &&
892: &Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
893: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
894:
895: my %contrib=('message' => $email,
896: 'sendername' => $ENV{'user.name'},
897: 'senderdomain' => $ENV{'user.domain'},
898: 'screenname' => $ENV{'environment.screenname'},
899: 'plainname' => $ENV{'environment.firstname'}.' '.
900: $ENV{'environment.middlename'}.' '.
901: $ENV{'environment.lastname'}.' '.
902: $ENV{'enrironment.generation'},
903: 'attachmenturl'=> $attachmenturl,
904: 'subject' => $subject);
905: if ($ENV{'form.replydisc'}) {
906: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1];
907: }
908: if ($anon) {
909: $contrib{'anonymous'}='true';
910: }
911: if (($symb) && ($email)) {
912: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
913: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
914: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
915: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
916: my %storenewentry=($symb => time);
917: $status.='<br />'.&mt('Updating discussion time').': '.
918: &Apache::lonnet::put('discussiontimes',\%storenewentry,
919: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
920: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
921: }
922: my %record=&Apache::lonnet::restore('_discussion');
923: my ($temp)=keys %record;
924: unless ($temp=~/^error\:/) {
925: my %newrecord=();
926: $newrecord{'resource'}=$symb;
927: $newrecord{'subnumber'}=$record{'subnumber'}+1;
928: $status.='<br />'.&mt('Registering').': '.
929: &Apache::lonnet::cstore(\%newrecord,'_discussion');
930: }
931: } else {
932: $status.='Failed.';
933: }
934: return $status.'<br />';
935: }
936:
937: # ----------------------------------------------------------- Preview function
938:
939: sub show_preview {
940: my $r=shift;
941: my $message=&clear_out_html($ENV{'form.comment'});
942: $message=~s/\n/\<br \/\>/g;
943: $message=&Apache::lontexconvert::msgtexconverted($message);
944: my $subject=&clear_out_html($ENV{'form.subject'});
945: $subject=~s/\n/\<br \/\>/g;
946: $subject=&Apache::lontexconvert::msgtexconverted($subject);
947: $r->print('<table border="2"><tr><td>'.
948: '<b>Subject:</b> '.$subject.'<br /><br />'.
949: $message.'</td></tr></table>');
950: }
951:
952: sub generate_preview_button {
953: my $pre=&mt("Show Preview");
954: return(<<ENDPREVIEW);
955: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
956: <input type="hidden" name="subject">
957: <input type="hidden" name="comment" />
958: <input type="button" value="$pre"
959: onClick="document.mailform.onsubmit();this.form.comment.value=document.mailform.comment.value;this.form.subject.value=document.mailform.subject.value;this.form.submit();" />
960: </form>
961: ENDPREVIEW
962: }
963:
964: sub handler {
965: my $r = shift;
966: if ($r->header_only) {
967: &Apache::loncommon::content_type($r,'text/html');
968: $r->send_http_header;
969: return OK;
970: }
971:
972: # --------------------------- Get query string for limited number of parameters
973:
974: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
975: ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff','onlyunread','allposts','previous','markread','markonread','markondisp']);
976:
977: if (($ENV{'form.markondisp'}) || ($ENV{'form.markonread'})) {
978: # ---------------------- Modify setting for identification of 'NEW' posts in this discussion
979:
980: &Apache::loncommon::content_type($r,'text/html');
981: $r->send_http_header;
982: my $symb=$ENV{'form.markondisp'}?$ENV{'form.markondisp'}:$ENV{'form.markonread'};
983: my $ressymb = $symb;
984: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
985: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
986: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
987: }
988:
989: my %discinfo = ();
990: my $lastkey = $ressymb.'_lastread';
991: my $ondispkey = $ressymb.'_markondisp';
992: if ($ENV{'form.markondisp'}) {
993: $discinfo{$lastkey} = time;
994: $discinfo{$ondispkey} = 1;
995: } elsif ($ENV{'form.markonread'}) {
996: if ( defined($ENV{'previous'}) ) {
997: $discinfo{$lastkey} = $ENV{'previous'};
998: }
999: $discinfo{$ondispkey} = 0;
1000: }
1001: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
1002: if ($ENV{'form.markondisp'}) {
1003: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0');
1004: } else {
1005: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$ENV{'form.previous'});
1006: }
1007: return OK;
1008: } elsif (($ENV{'form.allposts'}) || ($ENV{'form.onlyunread'})) {
1009: # ----------------------------------------------------------------- Modify display setting for this discussion
1010: &Apache::loncommon::content_type($r,'text/html');
1011: $r->send_http_header;
1012: my $symb=$ENV{'form.allposts'}?$ENV{'form.allposts'}:$ENV{'form.onlyunread'};
1013: my $ressymb = $symb;
1014: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1015: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
1016: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
1017: }
1018: my %discinfo = ();
1019: if ($ENV{'form.allposts'}) {
1020: $discinfo{$ressymb.'_showonlyunread'} = 0;
1021: } elsif ($ENV{'form.onlyunread'}) {
1022: $discinfo{$ressymb.'_showonlyunread'} = 1;
1023: }
1024: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
1025: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$ENV{'form.previous'});
1026: return OK;
1027: } elsif ($ENV{'form.markread'}) {
1028: # ----------------------------------------------------------------- Mark new posts as read
1029: &Apache::loncommon::content_type($r,'text/html');
1030: $r->send_http_header;
1031: my $symb=$ENV{'form.markread'};
1032: my $ressymb = $symb;
1033: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1034: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
1035: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
1036: }
1037: my %discinfo = ();
1038: my $lastkey = $ressymb.'_lastread';
1039: $discinfo{$lastkey} = time;
1040: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
1041: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed reading status').'<br />','0','0');
1042: return OK;
1043: } elsif (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
1044: # ----------------------------------------------------------------- Hide/unhide
1045: &Apache::loncommon::content_type($r,'text/html');
1046: $r->send_http_header;
1047:
1048: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
1049:
1050: my ($symb,$idx)=split(/\:\:\:/,$entry);
1051: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1052:
1053: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
1054: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1055: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1056:
1057:
1058: my $currenthidden=$contrib{'hidden'};
1059:
1060: if ($ENV{'form.hide'}) {
1061: $currenthidden.='.'.$idx.'.';
1062: } else {
1063: $currenthidden=~s/\.$idx\.//g;
1064: }
1065: my %newhash=('hidden' => $currenthidden);
1066:
1067: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
1068: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1069: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1070:
1071: &redirect_back($r,&Apache::lonnet::clutter($url),
1072: &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1073: } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) {
1074: &Apache::loncommon::content_type($r,'text/html');
1075: $r->send_http_header;
1076: if ($ENV{'form.threadedon'}) {
1077: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
1078: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
1079: } else {
1080: &Apache::lonnet::del('environment',['threadeddiscussion']);
1081: &Apache::lonnet::delenv('environment\.threadeddiscussion');
1082: }
1083: my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'};
1084: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1085: &redirect_back($r,&Apache::lonnet::clutter($url),
1086: &mt('Changed discussion view mode').'<br />','0','0','',$ENV{'form.previous'});
1087: } elsif ($ENV{'form.deldisc'}) {
1088: # --------------------------------------------------------------- Hide for good
1089: &Apache::loncommon::content_type($r,'text/html');
1090: $r->send_http_header;
1091:
1092: my $entry=$ENV{'form.deldisc'};
1093:
1094: my ($symb,$idx)=split(/\:\:\:/,$entry);
1095: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1096:
1097: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
1098: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1099: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1100:
1101:
1102: my $currentdeleted=$contrib{'deleted'};
1103:
1104: $currentdeleted.='.'.$idx.'.';
1105:
1106: my %newhash=('deleted' => $currentdeleted);
1107:
1108: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
1109: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1110: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1111:
1112: &redirect_back($r,&Apache::lonnet::clutter($url),
1113: &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1114: } elsif ($ENV{'form.preview'}) {
1115: # -------------------------------------------------------- User wants a preview
1116: $r->content_type('text/html');
1117: $r->send_http_header;
1118: &show_preview($r);
1119: } else {
1120: # ------------------------------------------------------------- Normal feedback
1121: my $feedurl=$ENV{'form.postdata'};
1122: $feedurl=~s/^http\:\/\///;
1123: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
1124: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1125: $feedurl=~s/\?.+$//;
1126:
1127: my $symb;
1128: if ($ENV{'form.replydisc'}) {
1129: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0];
1130: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1131: $feedurl=&Apache::lonnet::clutter($url);
1132: } else {
1133: $symb=&Apache::lonnet::symbread($feedurl);
1134: }
1135: unless ($symb) {
1136: $symb=$ENV{'form.symb'};
1137: if ($symb) {
1138: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1139: $feedurl=&Apache::lonnet::clutter($url);
1140: }
1141: }
1142: my $goahead=1;
1143: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1144: unless ($symb) { $goahead=0; }
1145: }
1146: # backward compatibility (bulltin boards used to be 'wrapped')
1147: if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
1148: $feedurl=~s|^/adm/wrapper||;
1149: }
1150: if ($goahead) {
1151: # Go ahead with feedback, no ambiguous reference
1152: &Apache::loncommon::content_type($r,'text/html');
1153: $r->send_http_header;
1154:
1155: if (
1156: (
1157: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
1158: )
1159: ||
1160: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1161: ||
1162: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1163: ) {
1164: # --------------------------------------------------- Print login screen header
1165: unless ($ENV{'form.sendit'}) {
1166: my $options=&screen_header($feedurl);
1167: if ($options) {
1168: &mail_screen($r,$feedurl,$options);
1169: } else {
1170: &fail_redirect($r,$feedurl);
1171: }
1172: } else {
1173:
1174: # Get previous user input
1175: my $prevattempts=&Apache::loncommon::get_previous_attempt(
1176: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1177: $ENV{'request.course.id'});
1178:
1179: # Get output from resource
1180: my $usersaw=&resource_output($feedurl);
1181:
1182: # Get resource answer (need to allow student to view grades for this to work)
1183: &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
1184: my $useranswer=&Apache::loncommon::get_student_answers(
1185: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1186: $ENV{'request.course.id'});
1187: &Apache::lonnet::delenv('allowed.vgr');
1188: # Get attachments, if any, and not too large
1189: my $attachmenturl='';
1190: if ($ENV{'form.attachment.filename'}) {
1191: unless (length($ENV{'form.attachment'})>131072) {
1192: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback');
1193: }
1194: }
1195: # Filter HTML out of message (could be nasty)
1196: my $message=&clear_out_html($ENV{'form.comment'});
1197:
1198: # Assemble email
1199: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
1200: $usersaw,$useranswer);
1201:
1202: # Who gets this?
1203: my ($typestyle,%to) = &decide_receiver($feedurl);
1204:
1205: # Actually send mail
1206: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
1207: $attachmenturl,%to);
1208:
1209: # Discussion? Store that.
1210:
1211: my $numpost=0;
1212: if ($ENV{'form.discuss'}) {
1213: my $subject = &clear_out_html($ENV{'form.subject'});
1214: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl,$subject);
1215: $numpost++;
1216: }
1217:
1218: if ($ENV{'form.anondiscuss'}) {
1219: my $subject = &clear_out_html($ENV{'form.subject'});
1220: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl,$subject);
1221: $numpost++;
1222: }
1223:
1224:
1225: # Receipt screen and redirect back to where came from
1226: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status,$ENV{'form.previous'});
1227:
1228: }
1229: } else {
1230: # Unable to give feedback
1231: &no_redirect_back($r,$feedurl);
1232: }
1233: } else {
1234: # Ambiguous Problem Resource
1235: if ( &Apache::lonnet::mod_perl_version() == 2 ) {
1236: &Apache::lonnet::cleanenv();
1237: }
1238: $r->internal_redirect('/adm/ambiguous');
1239: }
1240: }
1241: return OK;
1242: }
1243:
1244: 1;
1245: __END__
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