1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.89 2004/06/03 20:06:15 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 list_discussion {
41: my ($mode,$status,$symb)=@_;
42:
43: if (!($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
44: || $status eq 'OPEN')) {
45: return '';
46: }
47: my $close=&Apache::lonnet::EXT('resource.0.discussend');
48: if (defined($close) && $close ne '' && $close < time) {
49: return ''
50: }
51:
52: my @bgcols = ("#cccccc","#eeeeee");
53: my $discussiononly=0;
54: if ($mode eq 'board') { $discussiononly=1; }
55: unless ($ENV{'request.course.id'}) { return ''; }
56: my $crs='/'.$ENV{'request.course.id'};
57: if ($ENV{'request.course.sec'}) {
58: $crs.='_'.$ENV{'request.course.sec'};
59: }
60: $crs=~s/\_/\//g;
61: unless ($symb) {
62: $symb=&Apache::lonnet::symbread();
63: }
64: unless ($symb) { return ''; }
65:
66: # backward compatibility (bulletin boards used to be 'wrapped')
67: my $ressymb=$symb;
68: if ($mode eq 'board') {
69: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
70: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
71: }
72: }
73:
74: # Get discussion display settings for this discussion
75: my $lastkey = $ressymb.'_lastread';
76: my $showkey = $ressymb.'_showonlyunread';
77: my $visitkey = $ressymb.'_visit';
78: my $ondispkey = $ressymb.'_markondisp';
79: my %dischash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$lastkey,$showkey,$visitkey,$ondispkey],$ENV{'user.domain'},$ENV{'user.name'});
80: my %discinfo = ();
81: my $showonlyunread = 0;
82: my $markondisp = 0;
83: my $prevread = 0;
84: my $previous = 0;
85: my $visit = 0;
86: my $newpostsflag = 0;
87:
88: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
89: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']);
90: $previous = $ENV{'form.previous'};
91: if ($previous > 0) {
92: $prevread = $previous;
93: } elsif (defined($dischash{$lastkey})) {
94: unless ($dischash{$lastkey} eq '') {
95: $prevread = $dischash{$lastkey};
96: }
97: }
98:
99: # Get discussion display default settings for user
100: my %userenv = &Apache::lonnet::get('environment',['discdisplay','discmarkread'],$ENV{'user.domain'},$ENV{'user.name'});
101: my $discdisplay=$userenv{'discdisplay'};
102: if ($discdisplay eq 'unread') {
103: $showonlyunread = 1;
104: }
105: my $discmarkread=$userenv{'discmarkread'};
106: if ($discmarkread eq 'ondisp') {
107: $markondisp = 1;
108: }
109:
110: # Override user's default if user specified display setting for this discussion
111: if (defined($dischash{$ondispkey})) {
112: $markondisp = $dischash{$ondispkey};
113: }
114: if ($markondisp) {
115: $discinfo{$lastkey} = time;
116: }
117:
118: if (defined($dischash{$showkey})) {
119: $showonlyunread = $dischash{$showkey};
120: }
121:
122: if (defined($dischash{$visitkey})) {
123: $visit = $dischash{$visitkey};
124: }
125: $visit ++;
126:
127: my $seeid=&Apache::lonnet::allowed('rin',$crs);
128: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
129: && ($symb=~/\.(problem|exam|quiz|assess|survey|form)$/));
130: my @discussionitems=();
131: my %contrib=&Apache::lonnet::restore($ressymb,$ENV{'request.course.id'},
132: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
133: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
134: my $visible=0;
135: my @depth=();
136: my @original=();
137: my @index=();
138: my @replies=();
139: my %alldiscussion=();
140: my %notshown = ();
141: my %newitem = ();
142: my $maxdepth=0;
143:
144: my $target='';
145: unless ($ENV{'browser.interface'} eq 'textual' ||
146: $ENV{'environment.remote'} eq 'off' ) {
147: $target='target="LONcom"';
148: }
149:
150: my $now = time;
151: $discinfo{$visitkey} = $visit;
152:
153: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
154:
155: if ($contrib{'version'}) {
156: my $oldest = $contrib{'1:timestamp'};
157: if ($prevread eq '0') {
158: $prevread = $oldest-1;
159: }
160: for (my $id=1;$id<=$contrib{'version'};$id++) {
161: my $idx=$id;
162: my $posttime = $contrib{$idx.':timestamp'};
163: if ($prevread <= $posttime) {
164: $newpostsflag = 1;
165: }
166: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
167: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
168: my $origindex='0.';
169: if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) {
170: # this is a follow-up message
171: $original[$idx]=$original[$contrib{$idx.':replyto'}];
172: $depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1;
173: $origindex=$index[$contrib{$idx.':replyto'}];
174: if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; }
175: } else {
176: # this is an original message
177: $original[$idx]=0;
178: $depth[$idx]=0;
179: }
180: if ($replies[$depth[$idx]]) {
181: $replies[$depth[$idx]]++;
182: } else {
183: $replies[$depth[$idx]]=1;
184: }
185: unless ((($hidden) && (!$seeid)) || ($deleted)) {
186: $visible++;
187: my $message=$contrib{$idx.':message'};
188: $message=~s/\n/\<br \/\>/g;
189: $message=&Apache::lontexconvert::msgtexconverted($message);
190: my $subject=$contrib{$idx.':subject'};
191: if (defined($subject)) {
192: $subject=~s/\n/\<br \/\>/g;
193: $subject=&Apache::lontexconvert::msgtexconverted($subject);
194: }
195: if ($contrib{$idx.':attachmenturl'}) {
196: my ($fname)
197: =($contrib{$idx.':attachmenturl'}=~m|/([^/]+)$|);
198: &Apache::lonnet::allowuploaded('/adm/feedback',
199: $contrib{$idx.':attachmenturl'});
200: $message.='<p>'.&mt('Attachment').
201: ': <a href="'.$contrib{$idx.':attachmenturl'}.'"><tt>'.
202: $fname.'</tt></a></p>';
203: }
204: if ($message) {
205: if ($hidden) {
206: $message='<font color="#888888">'.$message.'</font>';
207: }
208: my $screenname=&Apache::loncommon::screenname(
209: $contrib{$idx.':sendername'},
210: $contrib{$idx.':senderdomain'});
211: my $plainname=&Apache::loncommon::nickname(
212: $contrib{$idx.':sendername'},
213: $contrib{$idx.':senderdomain'});
214:
215: my $sender=&mt('Anonymous');
216: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
217: $sender=&Apache::loncommon::aboutmewrapper(
218: $plainname,
219: $contrib{$idx.':sendername'},
220: $contrib{$idx.':senderdomain'}).' ('.
221: $contrib{$idx.':sendername'}.' at '.
222: $contrib{$idx.':senderdomain'}.')';
223: if ($contrib{$idx.':anonymous'}) {
224: $sender.=' ['.&mt('anonymous').'] '.
225: $screenname;
226: }
227: if ($seeid) {
228: if ($hidden) {
229: $sender.=' <a href="/adm/feedback?unhide='.
230: $ressymb.':::'.$idx;
231: if ($newpostsflag) {
232: $sender .= '&previous='.$prevread;
233: }
234: $sender .= '">'.&mt('Make Visible').'</a>';
235: } else {
236: $sender.=' <a href="/adm/feedback?hide='.
237: $ressymb.':::'.$idx;
238: if ($newpostsflag) {
239: $sender .= '&previous='.$prevread;
240: }
241: $sender .= '">'.&mt('Hide').'</a>';
242: }
243: $sender.=' <a href="/adm/feedback?deldisc='.
244: $ressymb.':::'.$idx;
245: if ($newpostsflag) {
246: $sender .= '&previous='.$prevread;
247: }
248: $sender .= '">'.&mt('Delete').'</a>';
249: }
250: } else {
251: if ($screenname) {
252: $sender='<i>'.$screenname.'</i>';
253: }
254: }
255: if (&Apache::lonnet::allowed('pch',
256: $ENV{'request.course.id'}.
257: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
258: $sender.=' <a href="/adm/feedback?replydisc='.
259: $ressymb.':::'.$idx;
260: if ($newpostsflag) {
261: $sender .= '&previous='.$prevread;
262: }
263: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
264: }
265: my $vgrlink;
266: if ($viewgrades) {
267: $vgrlink=&Apache::loncommon::submlink('Submissions',
268: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb);
269: }
270: #figure out at what position this needs to print
271: my $thisindex=$idx;
272: if ($ENV{'environment.threadeddiscussion'}) {
273: $thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2);
274: }
275: $alldiscussion{$thisindex}=$idx;
276: $index[$idx]=$thisindex;
277: my $spansize = 2;
278: if ($showonlyunread && $prevread > $posttime) {
279: $notshown{$idx} = 1;
280: } else {
281: if ($prevread > 0 && $prevread <= $posttime) {
282: $newitem{$idx} = 1;
283: $discussionitems[$idx] .= '
284: <p><table border="0" width="100%">
285: <tr><td align="left"><font color="#FF0000"><b>NEW</b></font></td>';
286: } else {
287: $newitem{$idx} = 0;
288: $discussionitems[$idx] .= '
289: <p><table border="0" width="100%">
290: <tr><td align="left"> </td>';
291: }
292: $discussionitems[$idx] .= '<td align ="left"> '.
293: '<b>'.$subject.'</b> '.
294: $sender.'</b> '.$vgrlink.' ('.
295: localtime($posttime).')</td></tr>'.
296: '</table><blockquote>'.$message.'</blockquote></p>';
297: }
298: }
299: }
300: }
301: }
302:
303: my $discussion='';
304:
305: my $function = &Apache::loncommon::get_users_function();
306: my $color = &Apache::loncommon::designparm($function.'.tabbg',
307: $ENV{'user.domain'});
308: my %lt = &Apache::lonlocal::texthash(
309: 'cuse' => 'Current settings for this discussion',
310: 'allposts' => 'All posts',
311: 'unread' => 'New posts only',
312: 'ondisp' => 'Once displayed',
313: 'onmark' => 'Once marked read',
314: 'disa' => 'Posts to be displayed',
315: 'npce' => 'Posts cease to be marked "NEW"',
316: 'chgt' => 'Change to ',
317: );
318:
319: my $currdisp = $lt{'allposts'};
320: my $currmark = $lt{'onmark'};
321: my $dispchange = $lt{'unread'};
322: my $markchange = $lt{'ondisp'};
323: my $displink = '/adm/feedback?onlyunread='.$ressymb;
324: my $marklink = '/adm/feedback?markondisp='.$ressymb;
325:
326: if ($markondisp) {
327: $currmark = $lt{'ondisp'};
328: $markchange = $lt{'onmark'};
329: $marklink = '/adm/feedback?markonread='.$ressymb;
330: if ($newpostsflag) {
331: $marklink .= '&previous='.$prevread;
332: }
333: }
334:
335: if ($showonlyunread) {
336: $currdisp = $lt{'unread'};
337: $dispchange = $lt{'allposts'};
338: $displink = '/adm/feedback?allposts='.$ressymb;
339: }
340:
341: if ($newpostsflag) {
342: $displink .= '&previous='.$prevread;
343: }
344:
345: if ($visible) {
346: # Print the discusssion
347: $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
348: my $colspan=$maxdepth+1;
349: $discussion .= '<tr bgcolor="#FFFFFF"><td colspan="'.$colspan.'" valign="top">'.
350: '<table border="0" bgcolor="#FFFFFF" width="100%" cellspacing="2" cellpadding="2">'.
351: '<tr><td align="left"><b>'.$lt{'cuse'}.'</b></td><td> </td><td align="right"><b>'.$lt{'chgt'}.'</b></td></tr>'.
352: '<tr><td>'.$lt{'disa'}.': <i>'.$currdisp.'</i></td><td> </td><td align="right"><a href="'.$displink.'">'.$dispchange.'</a></td></tr>'.
353: '<tr><td>'.$lt{'npce'}.': <i>'.$currmark.'</i></td><td> </td><td align="right"><a href="'.$marklink.'">'.$markchange.'</a></td></tr>'.
354: '</table></td></tr>'.
355: '<tr><td bgcolor="#DDDDBB" colspan="'.$colspan.'">'.
356: '<table border="0" width="100%" bgcolor="#DDDDBB"><tr>';
357: if ($visible>2) {
358: $discussion.='<td align="left">'.
359: '<a href="/adm/feedback?threadedon='.$ressymb;
360: if ($newpostsflag) {
361: $discussion .= '&previous='.$prevread;
362: }
363: $discussion .='">'.&mt('Threaded View').'</a> '.
364: '<a href="/adm/feedback?threadedoff='.$ressymb;
365: if ($newpostsflag) {
366: $discussion .= '&previous='.$prevread;
367: }
368: $discussion .='">'.&mt('Chronological View').'</a> </td>';
369: }
370: if ($newpostsflag) {
371: if (!$markondisp) {
372: $discussion .='<td align="right"><a href="/adm/feedback?markread='.$ressymb.'">'.&mt('Mark new posts as read').'</a> ';
373: } else {
374: $discussion .= '<td> </td>';
375: }
376: } else {
377: $discussion .= '<td> </td>';
378: }
379: $discussion .= '</tr></table></td></tr>';
380:
381: my $numhidden = keys %notshown;
382: if ($numhidden > 0) {
383: my $colspan = $maxdepth+1;
384: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
385: '<a href="/adm/feedback?allposts='.$ressymb;
386: if ($newpostsflag) {
387: $discussion .= '&previous='.$prevread;
388: }
389: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
390: $numhidden.' '.&mt('previously viewed posts').
391: '<br/></td></tr>';
392: }
393: foreach (sort { $a <=> $b } keys %alldiscussion) {
394: unless ($notshown{$alldiscussion{$_}} eq '1') {
395: $discussion.="\n<tr>";
396: my $thisdepth=$depth[$alldiscussion{$_}];
397: for (1..$thisdepth) {
398: $discussion.='<td> </td>';
399: }
400: my $colspan=$maxdepth-$thisdepth+1;
401: $discussion.='<td bgcolor="'.$bgcols[$newitem{$alldiscussion{$_}}].'" colspan="'.$colspan.'">'.
402: $discussionitems[$alldiscussion{$_}].
403: '</td></tr>';
404: }
405: }
406: $discussion.='</table><br /><br />';
407: }
408: if ($discussiononly) {
409: $discussion.=(<<ENDDISCUSS);
410: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
411: <input type="submit" name="discuss" value="Post Discussion" />
412: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
413: <input type="hidden" name="symb" value="$ressymb" />
414: <input type="hidden" name="sendit" value="true" />
415: <br />
416: <font size="1">Note: in anonymous discussion, your name is visible only to
417: course faculty</font><br />
418: <b>Title:</b> <input type="text" name="subject" value="" size="30" /><br /><br />
419: <textarea name="comment" cols="60" rows="12" wrap="hard"></textarea>
420: <p>
421: Attachment (128 KB max size): <input type="file" name="attachment" />
422: </p>
423: </form>
424: ENDDISCUSS
425: $discussion.=&generate_preview_button();
426: } else {
427: if (&Apache::lonnet::allowed('pch',
428: $ENV{'request.course.id'}.
429: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
430: $discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='.
431: $symb.':::" '.$target.'>'.
432: '<img src="/adm/lonMisc/chat.gif" border="0" />'.
433: &mt('Post Discussion').'</a></td></tr></table>';
434: }
435: }
436: return $discussion;
437: }
438:
439: sub mail_screen {
440: my ($r,$feedurl,$options) = @_;
441: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
442: '','onLoad="window.focus();"');
443: my $title=&Apache::lonnet::gettitle($feedurl);
444: if (!$title) { $title = $feedurl; }
445: my $quote='';
446: my $subject = '';
447: my $prevtag = '';
448: if ($ENV{'form.replydisc'}) {
449: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'});
450: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
451: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
452: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
453: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
454: my $message=$contrib{$idx.':message'};
455: $message=~s/\n/\<br \/\>/g;
456: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
457: if ($idx > 0) {
458: $subject = 'Re: '.$contrib{$idx.':subject'};
459: }
460: }
461: if ($ENV{'form.previous'}) {
462: $prevtag = '<input type="hidden" name="previous" value="'.$ENV{'form.previous'}.'" />';
463: }
464: }
465: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet();
466: my $htmlheader=&Apache::lonhtmlcommon::htmlareaheaders();
467: my $send=&mt('Send');
468: $r->print(<<ENDDOCUMENT);
469: <html>
470: <head>
471: <title>The LearningOnline Network with CAPA</title>
472: <meta http-equiv="pragma" content="no-cache"></meta>
473: $htmlheader
474: <script type="text/javascript">
475: //<!--
476: function gosubmit() {
477: var rec=0;
478: if (typeof(document.mailform.elements.author)!="undefined") {
479: if (document.mailform.elements.author.checked) {
480: rec=1;
481: }
482: }
483: if (typeof(document.mailform.elements.question)!="undefined") {
484: if (document.mailform.elements.question.checked) {
485: rec=1;
486: }
487: }
488: if (typeof(document.mailform.elements.course)!="undefined") {
489: if (document.mailform.elements.course.checked) {
490: rec=1;
491: }
492: }
493: if (typeof(document.mailform.elements.policy)!="undefined") {
494: if (document.mailform.elements.policy.checked) {
495: rec=1;
496: }
497: }
498: if (typeof(document.mailform.elements.discuss)!="undefined") {
499: if (document.mailform.elements.discuss.checked) {
500: rec=1;
501: }
502: }
503: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
504: if (document.mailform.elements.anondiscuss.checked) {
505: rec=1;
506: }
507: }
508:
509: if (rec) {
510: document.mailform.onsubmit();
511: document.mailform.submit();
512: } else {
513: alert('Please check a feedback type.');
514: }
515: }
516: //-->
517: </script>
518: </head>
519: $bodytag
520: <h2><tt>$title</tt></h2>
521: <form action="/adm/feedback" method="post" name="mailform"
522: enctype="multipart/form-data">
523: $prevtag
524: <input type="hidden" name="postdata" value="$feedurl" />
525: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" />
526: Please check at least one of the following feedback types:
527: $options<hr />
528: $quote
529: <p>My question/comment/feedback:</p>
530: <p>
531: $latexHelp
532: Title: <input type="text" name="subject" size="30" value="$subject" /></p>
533: <p>
534: <textarea name="comment" cols="60" rows="10" wrap="hard">
535: </textarea></p>
536: <p>
537: Attachment (128 KB max size): <input type="file" name="attachment" />
538: </p>
539: <p>
540: <input type="hidden" name="sendit" value="1" />
541: <input type="button" value="$send" onClick='gosubmit();' />
542: </p>
543: </form>
544: ENDDOCUMENT
545: $r->print(&generate_preview_button().
546: &Apache::lonhtmlcommon::htmlareaactive().
547: '</body></html>');
548: }
549:
550: sub fail_redirect {
551: my ($r,$feedurl) = @_;
552: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
553: $r->print (<<ENDFAILREDIR);
554: <html>
555: <head><title>Feedback not sent</title>
556: <meta http-equiv="pragma" content="no-cache" />
557: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
558: </head>
559: <body bgcolor="#FFFFFF">
560: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
561: <b>Sorry, no recipients ...</b>
562: </body>
563: </html>
564: ENDFAILREDIR
565: }
566:
567: sub redirect_back {
568: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status,$previous) = @_;
569: my $prevtag = '';
570: my $qrystr = '';
571: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
572: if ($previous > 0) {
573: $qrystr = 'previous='.$previous;
574: if ($feedurl =~ /\?register=1/) {
575: $feedurl .= '&'.$qrystr;
576: } else {
577: $feedurl .= '?'.$qrystr;
578: }
579: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
580: }
581: $r->print (<<ENDREDIR);
582: <html>
583: <head>
584: <title>Feedback sent</title>
585: <meta http-equiv="pragma" content="no-cache" />
586: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
587: </head>
588: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
589: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
590: $typestyle
591: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
592: <font color="red">$status</font>
593: <form name="reldt" action="$feedurl" target="loncapaclient">
594: $prevtag
595: </form>
596: </body>
597: </html>
598: ENDREDIR
599: }
600:
601: sub no_redirect_back {
602: my ($r,$feedurl) = @_;
603: $r->print (<<ENDNOREDIR);
604: <html>
605: <head><title>Feedback not sent</title>
606: <meta http-equiv="pragma" content="no-cache" />
607: ENDNOREDIR
608:
609: if ($feedurl!~/^\/adm\/feedback/) {
610: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
611: }
612:
613: $r->print (<<ENDNOREDIRTWO);
614: </head>
615: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
616: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
617: <b>Sorry, no feedback possible on this resource ...</b>
618: </body>
619: </html>
620: ENDNOREDIRTWO
621: }
622:
623: sub screen_header {
624: my ($feedurl) = @_;
625: my $msgoptions='';
626: my $discussoptions='';
627: unless ($ENV{'form.replydisc'}) {
628: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
629: $msgoptions=
630: '<p><input type="checkbox" name="author" /> '.
631: &mt('Feedback to resource author').'</p>';
632: }
633: if (&feedback_available(1)) {
634: $msgoptions.=
635: '<br /><input type="checkbox" name="question" /> '.
636: &mt('Question about resource content');
637: }
638: if (&feedback_available(0,1)) {
639: $msgoptions.=
640: '<br /><input type="checkbox" name="course" /> '.
641: &mt('Question/Comment/Feedback about course content');
642: }
643: if (&feedback_available(0,0,1)) {
644: $msgoptions.=
645: '<br /><input type="checkbox" name="policy" /> '.
646: &mt('Question/Comment/Feedback about course policy');
647: }
648: }
649: if ($ENV{'request.course.id'}) {
650: if (&Apache::lonnet::allowed('pch',
651: $ENV{'request.course.id'}.
652: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
653: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
654: ($ENV{'form.replydisc'}?' checked="1"':'').' /> '.
655: &mt('Contribution to course discussion of resource');
656: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '.
657: &mt('Anonymous contribution to course discussion of resource').
658: ' <i>('.&mt('name only visible to course faculty').')</i>';
659: }
660: }
661: if ($msgoptions) { $msgoptions='<h2><img src="/adm/lonMisc/feedback.gif" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
662: if ($discussoptions) {
663: $discussoptions='<h2><img src="/adm/lonMisc/chat.gif" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
664: return $msgoptions.$discussoptions;
665: }
666:
667: sub resource_output {
668: my ($feedurl) = @_;
669: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
670: $usersaw=~s/\<body[^\>]*\>//gi;
671: $usersaw=~s/\<\/body\>//gi;
672: $usersaw=~s/\<html\>//gi;
673: $usersaw=~s/\<\/html\>//gi;
674: $usersaw=~s/\<head\>//gi;
675: $usersaw=~s/\<\/head\>//gi;
676: $usersaw=~s/action\s*\=/would_be_action\=/gi;
677: return $usersaw;
678: }
679:
680: sub clear_out_html {
681: my ($message,$override)=@_;
682: unless (&Apache::lonhtmlcommon::htmlareablocked()) { return $message; }
683: my $cid=$ENV{'request.course.id'};
684: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
685: ($override)) {
686: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
687: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
688: # <SUP>
689: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
690: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
691: M=>1, SUB=>1, SUP=>1, SPAN=>1,
692: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1);
693:
694: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
695: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
696: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
697: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
698: } else {
699: $message=~s/\</\<\;/g;
700: $message=~s/\>/\>\;/g;
701: }
702: return $message;
703: }
704:
705: sub assemble_email {
706: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
707: my $email=<<"ENDEMAIL";
708: Refers to <a href="$feedurl">$feedurl</a>
709:
710: $message
711: ENDEMAIL
712: my $citations=<<"ENDCITE";
713: <h2>Previous attempts of student (if applicable)</h2>
714: $prevattempts
715: <br /><hr />
716: <h2>Original screen output (if applicable)</h2>
717: $usersaw
718: <h2>Correct Answer(s) (if applicable)</h2>
719: $useranswer
720: ENDCITE
721: return ($email,$citations);
722: }
723:
724: sub secapply {
725: my $rec=shift;
726: my $defaultflag=shift;
727: $rec=~s/\s+//g;
728: $rec=~s/\@/\:/g;
729: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
730: if ($sections) {
731: foreach (split(/\;/,$sections)) {
732: if (($_ eq $ENV{'request.course.sec'}) ||
733: ($defaultflag && ($_ eq '*'))) {
734: return $adr;
735: }
736: }
737: } else {
738: return $rec;
739: }
740: return '';
741: }
742:
743: sub decide_receiver {
744: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
745: my $typestyle='';
746: my %to=();
747: if ($ENV{'form.author'}||$author) {
748: $typestyle.='Submitting as Author Feedback<br>';
749: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
750: $to{$2.':'.$1}=1;
751: }
752: if ($ENV{'form.question'}||$question) {
753: $typestyle.='Submitting as Question<br>';
754: foreach (split(/\,/,
755: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
756: ) {
757: my $rec=&secapply($_,$defaultflag);
758: if ($rec) { $to{$rec}=1; }
759: }
760: }
761: if ($ENV{'form.course'}||$course) {
762: $typestyle.='Submitting as Comment<br />';
763: foreach (split(/\,/,
764: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
765: ) {
766: my $rec=&secapply($_,$defaultflag);
767: if ($rec) { $to{$rec}=1; }
768: }
769: }
770: if ($ENV{'form.policy'}||$policy) {
771: $typestyle.='Submitting as Policy Feedback<br />';
772: foreach (split(/\,/,
773: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
774: ) {
775: my $rec=&secapply($_,$defaultflag);
776: if ($rec) { $to{$rec}=1; }
777: }
778: }
779: if ((scalar(%to) eq '0') && (!$defaultflag)) {
780: ($typestyle,%to)=
781: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
782: }
783: return ($typestyle,%to);
784: }
785:
786: sub feedback_available {
787: my ($question,$course,$policy)=@_;
788: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
789: return scalar(%to);
790: }
791:
792: sub send_msg {
793: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
794: my $status='';
795: my $sendsomething=0;
796: foreach (keys %to) {
797: if ($_) {
798: my $declutter=&Apache::lonnet::declutter($feedurl);
799: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
800: 'Feedback ['.$declutter.']',$email,$citations,$feedurl,
801: $attachmenturl)=~/ok/) {
802: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
803: } else {
804: $sendsomething++;
805: }
806: }
807: }
808:
809: my %record=&Apache::lonnet::restore('_feedback');
810: my ($temp)=keys %record;
811: unless ($temp=~/^error\:/) {
812: my %newrecord=();
813: $newrecord{'resource'}=$feedurl;
814: $newrecord{'subnumber'}=$record{'subnumber'}+1;
815: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
816: $status.='<br />'.&mt('Not registered').'<br />';
817: }
818: }
819:
820: return ($status,$sendsomething);
821: }
822:
823: sub adddiscuss {
824: my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
825: my $status='';
826: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
827: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
828:
829: my %contrib=('message' => $email,
830: 'sendername' => $ENV{'user.name'},
831: 'senderdomain' => $ENV{'user.domain'},
832: 'screenname' => $ENV{'environment.screenname'},
833: 'plainname' => $ENV{'environment.firstname'}.' '.
834: $ENV{'environment.middlename'}.' '.
835: $ENV{'environment.lastname'}.' '.
836: $ENV{'enrironment.generation'},
837: 'attachmenturl'=> $attachmenturl,
838: 'subject' => $subject);
839: if ($ENV{'form.replydisc'}) {
840: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1];
841: }
842: if ($anon) {
843: $contrib{'anonymous'}='true';
844: }
845: if (($symb) && ($email)) {
846: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
847: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
848: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
849: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
850: my %storenewentry=($symb => time);
851: $status.='<br />'.&mt('Updating discussion time').': '.
852: &Apache::lonnet::put('discussiontimes',\%storenewentry,
853: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
854: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
855: }
856: my %record=&Apache::lonnet::restore('_discussion');
857: my ($temp)=keys %record;
858: unless ($temp=~/^error\:/) {
859: my %newrecord=();
860: $newrecord{'resource'}=$symb;
861: $newrecord{'subnumber'}=$record{'subnumber'}+1;
862: $status.='<br />'.&mt('Registering').': '.
863: &Apache::lonnet::cstore(\%newrecord,'_discussion');
864: }
865: } else {
866: $status.='Failed.';
867: }
868: return $status.'<br />';
869: }
870:
871: # ----------------------------------------------------------- Preview function
872:
873: sub show_preview {
874: my $r=shift;
875: my $message=&clear_out_html($ENV{'form.comment'});
876: $message=~s/\n/\<br \/\>/g;
877: $message=&Apache::lontexconvert::msgtexconverted($message);
878: my $subject=&clear_out_html($ENV{'form.subject'});
879: $subject=~s/\n/\<br \/\>/g;
880: $subject=&Apache::lontexconvert::msgtexconverted($subject);
881: $r->print('<table border="2"><tr><td>'.
882: '<b>Subject:</b> '.$subject.'<br /><br />'.
883: $message.'</td></tr></table>');
884: }
885:
886: sub generate_preview_button {
887: my $pre=&mt("Show Preview");
888: return(<<ENDPREVIEW);
889: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
890: <input type="hidden" name="subject">
891: <input type="hidden" name="comment" />
892: <input type="button" value="$pre"
893: onClick="document.mailform.onsubmit();this.form.comment.value=document.mailform.comment.value;this.form.subject.value=document.mailform.subject.value;this.form.submit();" />
894: </form>
895: ENDPREVIEW
896: }
897:
898: sub handler {
899: my $r = shift;
900: if ($r->header_only) {
901: &Apache::loncommon::content_type($r,'text/html');
902: $r->send_http_header;
903: return OK;
904: }
905:
906: # --------------------------- Get query string for limited number of parameters
907:
908: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
909: ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff','onlyunread','allposts','previous','markread','markonread','markondisp']);
910:
911: if (($ENV{'form.markondisp'}) || ($ENV{'form.markonread'})) {
912: # ---------------------- Modify setting for identification of 'NEW' posts in this discussion
913:
914: &Apache::loncommon::content_type($r,'text/html');
915: $r->send_http_header;
916: my $symb=$ENV{'form.markondisp'}?$ENV{'form.markondisp'}:$ENV{'form.markonread'};
917: my $ressymb = $symb;
918: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
919: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
920: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
921: }
922:
923: my %discinfo = ();
924: my $lastkey = $ressymb.'_lastread';
925: my $ondispkey = $ressymb.'_markondisp';
926: if ($ENV{'form.markondisp'}) {
927: $discinfo{$lastkey} = time;
928: $discinfo{$ondispkey} = 1;
929: } elsif ($ENV{'form.markonread'}) {
930: if ( defined($ENV{'previous'}) ) {
931: $discinfo{$lastkey} = $ENV{'previous'};
932: }
933: $discinfo{$ondispkey} = 0;
934: }
935: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
936: if ($ENV{'form.markondisp'}) {
937: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0');
938: } else {
939: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$ENV{'form.previous'});
940: }
941: return OK;
942: } elsif (($ENV{'form.allposts'}) || ($ENV{'form.onlyunread'})) {
943: # ----------------------------------------------------------------- Modify display setting for this discussion
944: &Apache::loncommon::content_type($r,'text/html');
945: $r->send_http_header;
946: my $symb=$ENV{'form.allposts'}?$ENV{'form.allposts'}:$ENV{'form.onlyunread'};
947: my $ressymb = $symb;
948: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
949: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
950: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
951: }
952: my %discinfo = ();
953: if ($ENV{'form.allposts'}) {
954: $discinfo{$ressymb.'_showonlyunread'} = 0;
955: } elsif ($ENV{'form.onlyunread'}) {
956: $discinfo{$ressymb.'_showonlyunread'} = 1;
957: }
958: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
959: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$ENV{'form.previous'});
960: return OK;
961: } elsif ($ENV{'form.markread'}) {
962: # ----------------------------------------------------------------- Mark new posts as read
963: &Apache::loncommon::content_type($r,'text/html');
964: $r->send_http_header;
965: my $symb=$ENV{'form.markread'};
966: my $ressymb = $symb;
967: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
968: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
969: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
970: }
971: my %discinfo = ();
972: my $lastkey = $ressymb.'_lastread';
973: $discinfo{$lastkey} = time;
974: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
975: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed reading status').'<br />','0','0');
976: return OK;
977: } elsif (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
978: # ----------------------------------------------------------------- Hide/unhide
979: &Apache::loncommon::content_type($r,'text/html');
980: $r->send_http_header;
981:
982: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
983:
984: my ($symb,$idx)=split(/\:\:\:/,$entry);
985: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
986:
987: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
988: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
989: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
990:
991:
992: my $currenthidden=$contrib{'hidden'};
993:
994: if ($ENV{'form.hide'}) {
995: $currenthidden.='.'.$idx.'.';
996: } else {
997: $currenthidden=~s/\.$idx\.//g;
998: }
999: my %newhash=('hidden' => $currenthidden);
1000:
1001: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
1002: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1003: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1004:
1005: &redirect_back($r,&Apache::lonnet::clutter($url),
1006: &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1007: } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) {
1008: &Apache::loncommon::content_type($r,'text/html');
1009: $r->send_http_header;
1010: if ($ENV{'form.threadedon'}) {
1011: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
1012: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
1013: } else {
1014: &Apache::lonnet::del('environment',['threadeddiscussion']);
1015: &Apache::lonnet::delenv('environment\.threadeddiscussion');
1016: }
1017: my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'};
1018: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1019: &redirect_back($r,&Apache::lonnet::clutter($url),
1020: &mt('Changed discussion view mode').'<br />','0','0','',$ENV{'form.previous'});
1021: } elsif ($ENV{'form.deldisc'}) {
1022: # --------------------------------------------------------------- Hide for good
1023: &Apache::loncommon::content_type($r,'text/html');
1024: $r->send_http_header;
1025:
1026: my $entry=$ENV{'form.deldisc'};
1027:
1028: my ($symb,$idx)=split(/\:\:\:/,$entry);
1029: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1030:
1031: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
1032: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1033: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1034:
1035:
1036: my $currentdeleted=$contrib{'deleted'};
1037:
1038: $currentdeleted.='.'.$idx.'.';
1039:
1040: my %newhash=('deleted' => $currentdeleted);
1041:
1042: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
1043: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1044: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1045:
1046: &redirect_back($r,&Apache::lonnet::clutter($url),
1047: &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1048: } elsif ($ENV{'form.preview'}) {
1049: # -------------------------------------------------------- User wants a preview
1050: $r->content_type('text/html');
1051: $r->send_http_header;
1052: &show_preview($r);
1053: } else {
1054: # ------------------------------------------------------------- Normal feedback
1055: my $feedurl=$ENV{'form.postdata'};
1056: $feedurl=~s/^http\:\/\///;
1057: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
1058: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1059: $feedurl=~s/\?.+$//;
1060:
1061: my $symb;
1062: if ($ENV{'form.replydisc'}) {
1063: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0];
1064: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1065: $feedurl=&Apache::lonnet::clutter($url);
1066: } else {
1067: $symb=&Apache::lonnet::symbread($feedurl);
1068: }
1069: unless ($symb) {
1070: $symb=$ENV{'form.symb'};
1071: if ($symb) {
1072: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1073: $feedurl=&Apache::lonnet::clutter($url);
1074: }
1075: }
1076: my $goahead=1;
1077: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1078: unless ($symb) { $goahead=0; }
1079: }
1080: # backward compatibility (bulltin boards used to be 'wrapped')
1081: if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
1082: $feedurl=~s|^/adm/wrapper||;
1083: }
1084: if ($goahead) {
1085: # Go ahead with feedback, no ambiguous reference
1086: &Apache::loncommon::content_type($r,'text/html');
1087: $r->send_http_header;
1088:
1089: if (
1090: (
1091: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
1092: )
1093: ||
1094: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1095: ||
1096: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1097: ) {
1098: # --------------------------------------------------- Print login screen header
1099: unless ($ENV{'form.sendit'}) {
1100: my $options=&screen_header($feedurl);
1101: if ($options) {
1102: &mail_screen($r,$feedurl,$options);
1103: } else {
1104: &fail_redirect($r,$feedurl);
1105: }
1106: } else {
1107:
1108: # Get previous user input
1109: my $prevattempts=&Apache::loncommon::get_previous_attempt(
1110: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1111: $ENV{'request.course.id'});
1112:
1113: # Get output from resource
1114: my $usersaw=&resource_output($feedurl);
1115:
1116: # Get resource answer (need to allow student to view grades for this to work)
1117: &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
1118: my $useranswer=&Apache::loncommon::get_student_answers(
1119: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1120: $ENV{'request.course.id'});
1121: &Apache::lonnet::delenv('allowed.vgr');
1122: # Get attachments, if any, and not too large
1123: my $attachmenturl='';
1124: if ($ENV{'form.attachment.filename'}) {
1125: unless (length($ENV{'form.attachment'})>131072) {
1126: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback');
1127: }
1128: }
1129: # Filter HTML out of message (could be nasty)
1130: my $message=&clear_out_html($ENV{'form.comment'});
1131:
1132: # Assemble email
1133: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
1134: $usersaw,$useranswer);
1135:
1136: # Who gets this?
1137: my ($typestyle,%to) = &decide_receiver($feedurl);
1138:
1139: # Actually send mail
1140: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
1141: $attachmenturl,%to);
1142:
1143: # Discussion? Store that.
1144:
1145: my $numpost=0;
1146: if ($ENV{'form.discuss'}) {
1147: my $subject = &clear_out_html($ENV{'form.subject'});
1148: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl,$subject);
1149: $numpost++;
1150: }
1151:
1152: if ($ENV{'form.anondiscuss'}) {
1153: my $subject = &clear_out_html($ENV{'form.subject'});
1154: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl,$subject);
1155: $numpost++;
1156: }
1157:
1158:
1159: # Receipt screen and redirect back to where came from
1160: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status,$ENV{'form.previous'});
1161:
1162: }
1163: } else {
1164: # Unable to give feedback
1165: &no_redirect_back($r,$feedurl);
1166: }
1167: } else {
1168: # Ambiguous Problem Resource
1169: if ( &Apache::lonnet::mod_perl_version() == 2 ) {
1170: &Apache::lonnet::cleanenv();
1171: }
1172: $r->internal_redirect('/adm/ambiguous');
1173: }
1174: }
1175: return OK;
1176: }
1177:
1178: 1;
1179: __END__
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