1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.93 2004/06/04 22:54:36 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,$symb)=@_;
67:
68: if (not &discussion_visible($status)) { return ''; }
69: my @bgcols = ("#cccccc","#eeeeee");
70: my $discussiononly=0;
71: if ($mode eq 'board') { $discussiononly=1; }
72: unless ($ENV{'request.course.id'}) { return ''; }
73: my $crs='/'.$ENV{'request.course.id'};
74: if ($ENV{'request.course.sec'}) {
75: $crs.='_'.$ENV{'request.course.sec'};
76: }
77: $crs=~s/\_/\//g;
78: unless ($symb) {
79: $symb=&Apache::lonnet::symbread();
80: }
81: unless ($symb) { return ''; }
82:
83: # backward compatibility (bulletin boards used to be 'wrapped')
84: my $ressymb=$symb;
85: if ($mode eq 'board') {
86: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
87: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
88: }
89: }
90:
91: # Get discussion display settings for this discussion
92: my $lastkey = $ressymb.'_lastread';
93: my $showkey = $ressymb.'_showonlyunread';
94: my $visitkey = $ressymb.'_visit';
95: my $ondispkey = $ressymb.'_markondisp';
96: my %dischash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$lastkey,$showkey,$visitkey,$ondispkey],$ENV{'user.domain'},$ENV{'user.name'});
97: my %discinfo = ();
98: my $showonlyunread = 0;
99: my $markondisp = 0;
100: my $prevread = 0;
101: my $previous = 0;
102: my $visit = 0;
103: my $newpostsflag = 0;
104:
105: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
106: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']);
107: $previous = $ENV{'form.previous'};
108: if ($previous > 0) {
109: $prevread = $previous;
110: } elsif (defined($dischash{$lastkey})) {
111: unless ($dischash{$lastkey} eq '') {
112: $prevread = $dischash{$lastkey};
113: }
114: }
115:
116: # Get discussion display default settings for user
117: my %userenv = &Apache::lonnet::get('environment',['discdisplay','discmarkread'],$ENV{'user.domain'},$ENV{'user.name'});
118: my $discdisplay=$userenv{'discdisplay'};
119: if ($discdisplay eq 'unread') {
120: $showonlyunread = 1;
121: }
122: my $discmarkread=$userenv{'discmarkread'};
123: if ($discmarkread eq 'ondisp') {
124: $markondisp = 1;
125: }
126:
127: # Override user's default if user specified display setting for this discussion
128: if (defined($dischash{$ondispkey})) {
129: $markondisp = $dischash{$ondispkey};
130: }
131: if ($markondisp) {
132: $discinfo{$lastkey} = time;
133: }
134:
135: if (defined($dischash{$showkey})) {
136: $showonlyunread = $dischash{$showkey};
137: }
138:
139: if (defined($dischash{$visitkey})) {
140: $visit = $dischash{$visitkey};
141: }
142: $visit ++;
143:
144: my $seeid=&Apache::lonnet::allowed('rin',$crs);
145: my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
146: && ($symb=~/\.(problem|exam|quiz|assess|survey|form)$/));
147: my @discussionitems=();
148: my %contrib=&Apache::lonnet::restore($ressymb,$ENV{'request.course.id'},
149: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
150: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
151: my $visible=0;
152: my @depth=();
153: my @original=();
154: my @index=();
155: my @replies=();
156: my %alldiscussion=();
157: my %notshown = ();
158: my %newitem = ();
159: my $maxdepth=0;
160:
161: my $target='';
162: unless ($ENV{'browser.interface'} eq 'textual' ||
163: $ENV{'environment.remote'} eq 'off' ) {
164: $target='target="LONcom"';
165: }
166:
167: my $now = time;
168: $discinfo{$visitkey} = $visit;
169:
170: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
171:
172: if ($contrib{'version'}) {
173: my $oldest = $contrib{'1:timestamp'};
174: if ($prevread eq '0') {
175: $prevread = $oldest-1;
176: }
177: for (my $id=1;$id<=$contrib{'version'};$id++) {
178: my $idx=$id;
179: my $posttime = $contrib{$idx.':timestamp'};
180: if ($prevread <= $posttime) {
181: $newpostsflag = 1;
182: }
183: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
184: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
185: my $origindex='0.';
186: if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) {
187: # this is a follow-up message
188: $original[$idx]=$original[$contrib{$idx.':replyto'}];
189: $depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1;
190: $origindex=$index[$contrib{$idx.':replyto'}];
191: if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; }
192: } else {
193: # this is an original message
194: $original[$idx]=0;
195: $depth[$idx]=0;
196: }
197: if ($replies[$depth[$idx]]) {
198: $replies[$depth[$idx]]++;
199: } else {
200: $replies[$depth[$idx]]=1;
201: }
202: unless ((($hidden) && (!$seeid)) || ($deleted)) {
203: $visible++;
204: my $message=$contrib{$idx.':message'};
205: $message=~s/\n/\<br \/\>/g;
206: $message=&Apache::lontexconvert::msgtexconverted($message);
207: my $subject=$contrib{$idx.':subject'};
208: if (defined($subject)) {
209: $subject=~s/\n/\<br \/\>/g;
210: $subject=&Apache::lontexconvert::msgtexconverted($subject);
211: }
212: if ($contrib{$idx.':attachmenturl'}) {
213: my ($fname)
214: =($contrib{$idx.':attachmenturl'}=~m|/([^/]+)$|);
215: &Apache::lonnet::allowuploaded('/adm/feedback',
216: $contrib{$idx.':attachmenturl'});
217: $message.='<p>'.&mt('Attachment').
218: ': <a href="'.$contrib{$idx.':attachmenturl'}.'"><tt>'.
219: $fname.'</tt></a></p>';
220: }
221: if ($message) {
222: if ($hidden) {
223: $message='<font color="#888888">'.$message.'</font>';
224: }
225: my $screenname=&Apache::loncommon::screenname(
226: $contrib{$idx.':sendername'},
227: $contrib{$idx.':senderdomain'});
228: my $plainname=&Apache::loncommon::nickname(
229: $contrib{$idx.':sendername'},
230: $contrib{$idx.':senderdomain'});
231:
232: my $sender=&mt('Anonymous');
233: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
234: $sender=&Apache::loncommon::aboutmewrapper(
235: $plainname,
236: $contrib{$idx.':sendername'},
237: $contrib{$idx.':senderdomain'}).' ('.
238: $contrib{$idx.':sendername'}.' at '.
239: $contrib{$idx.':senderdomain'}.')';
240: if ($contrib{$idx.':anonymous'}) {
241: $sender.=' ['.&mt('anonymous').'] '.
242: $screenname;
243: }
244: if ($seeid) {
245: if ($hidden) {
246: $sender.=' <a href="/adm/feedback?unhide='.
247: $ressymb.':::'.$idx;
248: if ($newpostsflag) {
249: $sender .= '&previous='.$prevread;
250: }
251: $sender .= '">'.&mt('Make Visible').'</a>';
252: } else {
253: $sender.=' <a href="/adm/feedback?hide='.
254: $ressymb.':::'.$idx;
255: if ($newpostsflag) {
256: $sender .= '&previous='.$prevread;
257: }
258: $sender .= '">'.&mt('Hide').'</a>';
259: }
260: $sender.=' <a href="/adm/feedback?deldisc='.
261: $ressymb.':::'.$idx;
262: if ($newpostsflag) {
263: $sender .= '&previous='.$prevread;
264: }
265: $sender .= '">'.&mt('Delete').'</a>';
266: }
267: } else {
268: if ($screenname) {
269: $sender='<i>'.$screenname.'</i>';
270: }
271: }
272: if (&discussion_open($status) &&
273: &Apache::lonnet::allowed('pch',
274: $ENV{'request.course.id'}.
275: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
276: $sender.=' <a href="/adm/feedback?replydisc='.
277: $ressymb.':::'.$idx;
278: if ($newpostsflag) {
279: $sender .= '&previous='.$prevread;
280: }
281: $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
282: }
283: my $vgrlink;
284: if ($viewgrades) {
285: $vgrlink=&Apache::loncommon::submlink('Submissions',
286: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb);
287: }
288: #figure out at what position this needs to print
289: my $thisindex=$idx;
290: if ($ENV{'environment.threadeddiscussion'}) {
291: $thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2);
292: }
293: $alldiscussion{$thisindex}=$idx;
294: $index[$idx]=$thisindex;
295: my $spansize = 2;
296: if ($showonlyunread && $prevread > $posttime) {
297: $notshown{$idx} = 1;
298: } else {
299: if ($prevread > 0 && $prevread <= $posttime) {
300: $newitem{$idx} = 1;
301: $discussionitems[$idx] .= '
302: <p><table border="0" width="100%">
303: <tr><td align="left"><font color="#FF0000"><b>NEW</b></font></td>';
304: } else {
305: $newitem{$idx} = 0;
306: $discussionitems[$idx] .= '
307: <p><table border="0" width="100%">
308: <tr><td align="left"> </td>';
309: }
310: $discussionitems[$idx] .= '<td align ="left"> '.
311: '<b>'.$subject.'</b> '.
312: $sender.'</b> '.$vgrlink.' ('.
313: localtime($posttime).')</td></tr>'.
314: '</table><blockquote>'.$message.'</blockquote></p>';
315: }
316: }
317: }
318: }
319: }
320:
321: my $discussion='';
322:
323: my $function = &Apache::loncommon::get_users_function();
324: my $color = &Apache::loncommon::designparm($function.'.tabbg',
325: $ENV{'user.domain'});
326: my %lt = &Apache::lonlocal::texthash(
327: 'cuse' => 'Current settings for this discussion',
328: 'allposts' => 'All posts',
329: 'unread' => 'New posts only',
330: 'ondisp' => 'Once displayed',
331: 'onmark' => 'Once marked read',
332: 'disa' => 'Posts to be displayed',
333: 'npce' => 'Posts cease to be marked "NEW"',
334: 'chgt' => 'Change to ',
335: );
336:
337: my $currdisp = $lt{'allposts'};
338: my $currmark = $lt{'onmark'};
339: my $dispchange = $lt{'unread'};
340: my $markchange = $lt{'ondisp'};
341: my $displink = '/adm/feedback?onlyunread='.$ressymb;
342: my $marklink = '/adm/feedback?markondisp='.$ressymb;
343:
344: if ($markondisp) {
345: $currmark = $lt{'ondisp'};
346: $markchange = $lt{'onmark'};
347: $marklink = '/adm/feedback?markonread='.$ressymb;
348: if ($newpostsflag) {
349: $marklink .= '&previous='.$prevread;
350: }
351: }
352:
353: if ($showonlyunread) {
354: $currdisp = $lt{'unread'};
355: $dispchange = $lt{'allposts'};
356: $displink = '/adm/feedback?allposts='.$ressymb;
357: }
358:
359: if ($newpostsflag) {
360: $displink .= '&previous='.$prevread;
361: }
362:
363: if ($visible) {
364: # Print the discusssion
365: $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
366: my $colspan=$maxdepth+1;
367: $discussion .= '<tr bgcolor="#FFFFFF"><td colspan="'.$colspan.'" valign="top">'.
368: '<table border="0" bgcolor="#FFFFFF" width="100%" cellspacing="2" cellpadding="2">'.
369: '<tr><td align="left"><b>'.$lt{'cuse'}.'</b></td><td> </td><td align="right"><b>'.$lt{'chgt'}.'</b></td></tr>'.
370: '<tr><td>'.$lt{'disa'}.': <i>'.$currdisp.'</i></td><td> </td><td align="right"><a href="'.$displink.'">'.$dispchange.'</a></td></tr>'.
371: '<tr><td>'.$lt{'npce'}.': <i>'.$currmark.'</i></td><td> </td><td align="right"><a href="'.$marklink.'">'.$markchange.'</a></td></tr>'.
372: '</table></td></tr>'.
373: '<tr><td bgcolor="#DDDDBB" colspan="'.$colspan.'">'.
374: '<table border="0" width="100%" bgcolor="#DDDDBB"><tr>';
375: if ($visible>2) {
376: $discussion.='<td align="left">'.
377: '<a href="/adm/feedback?threadedon='.$ressymb;
378: if ($newpostsflag) {
379: $discussion .= '&previous='.$prevread;
380: }
381: $discussion .='">'.&mt('Threaded View').'</a> '.
382: '<a href="/adm/feedback?threadedoff='.$ressymb;
383: if ($newpostsflag) {
384: $discussion .= '&previous='.$prevread;
385: }
386: $discussion .='">'.&mt('Chronological View').'</a> </td>';
387: }
388: if ($newpostsflag) {
389: if (!$markondisp) {
390: $discussion .='<td align="right"><a href="/adm/feedback?markread='.$ressymb.'">'.&mt('Mark new posts as read').'</a> ';
391: } else {
392: $discussion .= '<td> </td>';
393: }
394: } else {
395: $discussion .= '<td> </td>';
396: }
397: $discussion .= '</tr></table></td></tr>';
398:
399: my $numhidden = keys %notshown;
400: if ($numhidden > 0) {
401: my $colspan = $maxdepth+1;
402: $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
403: '<a href="/adm/feedback?allposts='.$ressymb;
404: if ($newpostsflag) {
405: $discussion .= '&previous='.$prevread;
406: }
407: $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
408: $numhidden.' '.&mt('previously viewed posts').
409: '<br/></td></tr>';
410: }
411: foreach (sort { $a <=> $b } keys %alldiscussion) {
412: unless ($notshown{$alldiscussion{$_}} eq '1') {
413: $discussion.="\n<tr>";
414: my $thisdepth=$depth[$alldiscussion{$_}];
415: for (1..$thisdepth) {
416: $discussion.='<td> </td>';
417: }
418: my $colspan=$maxdepth-$thisdepth+1;
419: $discussion.='<td bgcolor="'.$bgcols[$newitem{$alldiscussion{$_}}].'" colspan="'.$colspan.'">'.
420: $discussionitems[$alldiscussion{$_}].
421: '</td></tr>';
422: }
423: }
424: $discussion.='</table><br /><br />';
425: }
426: if ($discussiononly) {
427: $discussion.=(<<ENDDISCUSS);
428: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
429: <input type="submit" name="discuss" value="Post Discussion" />
430: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
431: <input type="hidden" name="symb" value="$ressymb" />
432: <input type="hidden" name="sendit" value="true" />
433: <br />
434: <font size="1">Note: in anonymous discussion, your name is visible only to
435: course faculty</font><br />
436: <b>Title:</b> <input type="text" name="subject" value="" size="30" /><br /><br />
437: <textarea name="comment" cols="60" rows="12" wrap="hard"></textarea>
438: <p>
439: Attachment (128 KB max size): <input type="file" name="attachment" />
440: </p>
441: </form>
442: ENDDISCUSS
443: $discussion.=&generate_preview_button();
444: } else {
445: if (&discussion_open($status) &&
446: &Apache::lonnet::allowed('pch',
447: $ENV{'request.course.id'}.
448: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
449: $discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='.
450: $symb.':::" '.$target.'>'.
451: '<img src="/adm/lonMisc/chat.gif" border="0" />'.
452: &mt('Post Discussion').'</a></td></tr></table>';
453: }
454: }
455: return $discussion;
456: }
457:
458: sub mail_screen {
459: my ($r,$feedurl,$options) = @_;
460: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
461: '','onLoad="window.focus();"');
462: my $title=&Apache::lonnet::gettitle($feedurl);
463: if (!$title) { $title = $feedurl; }
464: my $quote='';
465: my $subject = '';
466: my $prevtag = '';
467: if ($ENV{'form.replydisc'}) {
468: my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'});
469: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
470: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
471: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
472: unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
473: my $message=$contrib{$idx.':message'};
474: $message=~s/\n/\<br \/\>/g;
475: $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
476: if ($idx > 0) {
477: $subject = 'Re: '.$contrib{$idx.':subject'};
478: }
479: }
480: if ($ENV{'form.previous'}) {
481: $prevtag = '<input type="hidden" name="previous" value="'.$ENV{'form.previous'}.'" />';
482: }
483: }
484: my $latexHelp=&Apache::loncommon::helpLatexCheatsheet();
485: my $htmlheader=&Apache::lonhtmlcommon::htmlareaheaders();
486: my $send=&mt('Send');
487: $r->print(<<ENDDOCUMENT);
488: <html>
489: <head>
490: <title>The LearningOnline Network with CAPA</title>
491: <meta http-equiv="pragma" content="no-cache"></meta>
492: $htmlheader
493: <script type="text/javascript">
494: //<!--
495: function gosubmit() {
496: var rec=0;
497: if (typeof(document.mailform.elements.author)!="undefined") {
498: if (document.mailform.elements.author.checked) {
499: rec=1;
500: }
501: }
502: if (typeof(document.mailform.elements.question)!="undefined") {
503: if (document.mailform.elements.question.checked) {
504: rec=1;
505: }
506: }
507: if (typeof(document.mailform.elements.course)!="undefined") {
508: if (document.mailform.elements.course.checked) {
509: rec=1;
510: }
511: }
512: if (typeof(document.mailform.elements.policy)!="undefined") {
513: if (document.mailform.elements.policy.checked) {
514: rec=1;
515: }
516: }
517: if (typeof(document.mailform.elements.discuss)!="undefined") {
518: if (document.mailform.elements.discuss.checked) {
519: rec=1;
520: }
521: }
522: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
523: if (document.mailform.elements.anondiscuss.checked) {
524: rec=1;
525: }
526: }
527:
528: if (rec) {
529: document.mailform.onsubmit();
530: document.mailform.submit();
531: } else {
532: alert('Please check a feedback type.');
533: }
534: }
535: //-->
536: </script>
537: </head>
538: $bodytag
539: <h2><tt>$title</tt></h2>
540: <form action="/adm/feedback" method="post" name="mailform"
541: enctype="multipart/form-data">
542: $prevtag
543: <input type="hidden" name="postdata" value="$feedurl" />
544: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" />
545: Please check at least one of the following feedback types:
546: $options<hr />
547: $quote
548: <p>My question/comment/feedback:</p>
549: <p>
550: $latexHelp
551: Title: <input type="text" name="subject" size="30" value="$subject" /></p>
552: <p>
553: <textarea name="comment" cols="60" rows="10" wrap="hard">
554: </textarea></p>
555: <p>
556: Attachment (128 KB max size): <input type="file" name="attachment" />
557: </p>
558: <p>
559: <input type="hidden" name="sendit" value="1" />
560: <input type="button" value="$send" onClick='gosubmit();' />
561: </p>
562: </form>
563: ENDDOCUMENT
564: $r->print(&generate_preview_button().
565: &Apache::lonhtmlcommon::htmlareaactive().
566: '</body></html>');
567: }
568:
569: sub fail_redirect {
570: my ($r,$feedurl) = @_;
571: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
572: $r->print (<<ENDFAILREDIR);
573: <html>
574: <head><title>Feedback not sent</title>
575: <meta http-equiv="pragma" content="no-cache" />
576: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
577: </head>
578: <body bgcolor="#FFFFFF">
579: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
580: <b>Sorry, no recipients ...</b>
581: </body>
582: </html>
583: ENDFAILREDIR
584: }
585:
586: sub redirect_back {
587: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status,$previous) = @_;
588: my $prevtag = '';
589: my $qrystr = '';
590: if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
591: if ($previous > 0) {
592: $qrystr = 'previous='.$previous;
593: if ($feedurl =~ /\?register=1/) {
594: $feedurl .= '&'.$qrystr;
595: } else {
596: $feedurl .= '?'.$qrystr;
597: }
598: $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
599: }
600: $r->print (<<ENDREDIR);
601: <html>
602: <head>
603: <title>Feedback sent</title>
604: <meta http-equiv="pragma" content="no-cache" />
605: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
606: </head>
607: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
608: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
609: $typestyle
610: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
611: <font color="red">$status</font>
612: <form name="reldt" action="$feedurl" target="loncapaclient">
613: $prevtag
614: </form>
615: </body>
616: </html>
617: ENDREDIR
618: }
619:
620: sub no_redirect_back {
621: my ($r,$feedurl) = @_;
622: $r->print (<<ENDNOREDIR);
623: <html>
624: <head><title>Feedback not sent</title>
625: <meta http-equiv="pragma" content="no-cache" />
626: ENDNOREDIR
627:
628: if ($feedurl!~/^\/adm\/feedback/) {
629: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
630: }
631:
632: $r->print (<<ENDNOREDIRTWO);
633: </head>
634: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
635: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
636: <b>Sorry, no feedback possible on this resource ...</b>
637: </body>
638: </html>
639: ENDNOREDIRTWO
640: }
641:
642: sub screen_header {
643: my ($feedurl) = @_;
644: my $msgoptions='';
645: my $discussoptions='';
646: unless ($ENV{'form.replydisc'}) {
647: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
648: $msgoptions=
649: '<p><input type="checkbox" name="author" /> '.
650: &mt('Feedback to resource author').'</p>';
651: }
652: if (&feedback_available(1)) {
653: $msgoptions.=
654: '<br /><input type="checkbox" name="question" /> '.
655: &mt('Question about resource content');
656: }
657: if (&feedback_available(0,1)) {
658: $msgoptions.=
659: '<br /><input type="checkbox" name="course" /> '.
660: &mt('Question/Comment/Feedback about course content');
661: }
662: if (&feedback_available(0,0,1)) {
663: $msgoptions.=
664: '<br /><input type="checkbox" name="policy" /> '.
665: &mt('Question/Comment/Feedback about course policy');
666: }
667: }
668: if ($ENV{'request.course.id'}) {
669: if (&discussion_open() &&
670: &Apache::lonnet::allowed('pch',
671: $ENV{'request.course.id'}.
672: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
673: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
674: ($ENV{'form.replydisc'}?' checked="1"':'').' /> '.
675: &mt('Contribution to course discussion of resource');
676: $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '.
677: &mt('Anonymous contribution to course discussion of resource').
678: ' <i>('.&mt('name only visible to course faculty').')</i>';
679: }
680: }
681: if ($msgoptions) { $msgoptions='<h2><img src="/adm/lonMisc/feedback.gif" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
682: if ($discussoptions) {
683: $discussoptions='<h2><img src="/adm/lonMisc/chat.gif" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
684: return $msgoptions.$discussoptions;
685: }
686:
687: sub resource_output {
688: my ($feedurl) = @_;
689: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
690: $usersaw=~s/\<body[^\>]*\>//gi;
691: $usersaw=~s/\<\/body\>//gi;
692: $usersaw=~s/\<html\>//gi;
693: $usersaw=~s/\<\/html\>//gi;
694: $usersaw=~s/\<head\>//gi;
695: $usersaw=~s/\<\/head\>//gi;
696: $usersaw=~s/action\s*\=/would_be_action\=/gi;
697: return $usersaw;
698: }
699:
700: sub clear_out_html {
701: my ($message,$override)=@_;
702: unless (&Apache::lonhtmlcommon::htmlareablocked()) { return $message; }
703: my $cid=$ENV{'request.course.id'};
704: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
705: ($override)) {
706: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
707: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG> <M> <SPAN> <H1> <H2> <H3> <H4> <SUB>
708: # <SUP>
709: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
710: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
711: M=>1, SUB=>1, SUP=>1, SPAN=>1,
712: H1=>1, H2=>1, H3=>1, H4=>1, H5=>1);
713:
714: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
715: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
716: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
717: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
718: } else {
719: $message=~s/\</\<\;/g;
720: $message=~s/\>/\>\;/g;
721: }
722: return $message;
723: }
724:
725: sub assemble_email {
726: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
727: my $email=<<"ENDEMAIL";
728: Refers to <a href="$feedurl">$feedurl</a>
729:
730: $message
731: ENDEMAIL
732: my $citations=<<"ENDCITE";
733: <h2>Previous attempts of student (if applicable)</h2>
734: $prevattempts
735: <br /><hr />
736: <h2>Original screen output (if applicable)</h2>
737: $usersaw
738: <h2>Correct Answer(s) (if applicable)</h2>
739: $useranswer
740: ENDCITE
741: return ($email,$citations);
742: }
743:
744: sub secapply {
745: my $rec=shift;
746: my $defaultflag=shift;
747: $rec=~s/\s+//g;
748: $rec=~s/\@/\:/g;
749: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
750: if ($sections) {
751: foreach (split(/\;/,$sections)) {
752: if (($_ eq $ENV{'request.course.sec'}) ||
753: ($defaultflag && ($_ eq '*'))) {
754: return $adr;
755: }
756: }
757: } else {
758: return $rec;
759: }
760: return '';
761: }
762:
763: sub decide_receiver {
764: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
765: my $typestyle='';
766: my %to=();
767: if ($ENV{'form.author'}||$author) {
768: $typestyle.='Submitting as Author Feedback<br>';
769: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
770: $to{$2.':'.$1}=1;
771: }
772: if ($ENV{'form.question'}||$question) {
773: $typestyle.='Submitting as Question<br>';
774: foreach (split(/\,/,
775: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
776: ) {
777: my $rec=&secapply($_,$defaultflag);
778: if ($rec) { $to{$rec}=1; }
779: }
780: }
781: if ($ENV{'form.course'}||$course) {
782: $typestyle.='Submitting as Comment<br />';
783: foreach (split(/\,/,
784: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
785: ) {
786: my $rec=&secapply($_,$defaultflag);
787: if ($rec) { $to{$rec}=1; }
788: }
789: }
790: if ($ENV{'form.policy'}||$policy) {
791: $typestyle.='Submitting as Policy Feedback<br />';
792: foreach (split(/\,/,
793: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
794: ) {
795: my $rec=&secapply($_,$defaultflag);
796: if ($rec) { $to{$rec}=1; }
797: }
798: }
799: if ((scalar(%to) eq '0') && (!$defaultflag)) {
800: ($typestyle,%to)=
801: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
802: }
803: return ($typestyle,%to);
804: }
805:
806: sub feedback_available {
807: my ($question,$course,$policy)=@_;
808: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
809: return scalar(%to);
810: }
811:
812: sub send_msg {
813: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
814: my $status='';
815: my $sendsomething=0;
816: foreach (keys %to) {
817: if ($_) {
818: my $declutter=&Apache::lonnet::declutter($feedurl);
819: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
820: 'Feedback ['.$declutter.']',$email,$citations,$feedurl,
821: $attachmenturl)=~/ok/) {
822: $status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
823: } else {
824: $sendsomething++;
825: }
826: }
827: }
828:
829: my %record=&Apache::lonnet::restore('_feedback');
830: my ($temp)=keys %record;
831: unless ($temp=~/^error\:/) {
832: my %newrecord=();
833: $newrecord{'resource'}=$feedurl;
834: $newrecord{'subnumber'}=$record{'subnumber'}+1;
835: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
836: $status.='<br />'.&mt('Not registered').'<br />';
837: }
838: }
839:
840: return ($status,$sendsomething);
841: }
842:
843: sub adddiscuss {
844: my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
845: my $status='';
846: if (&discussion_open() &&
847: &Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
848: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
849:
850: my %contrib=('message' => $email,
851: 'sendername' => $ENV{'user.name'},
852: 'senderdomain' => $ENV{'user.domain'},
853: 'screenname' => $ENV{'environment.screenname'},
854: 'plainname' => $ENV{'environment.firstname'}.' '.
855: $ENV{'environment.middlename'}.' '.
856: $ENV{'environment.lastname'}.' '.
857: $ENV{'enrironment.generation'},
858: 'attachmenturl'=> $attachmenturl,
859: 'subject' => $subject);
860: if ($ENV{'form.replydisc'}) {
861: $contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1];
862: }
863: if ($anon) {
864: $contrib{'anonymous'}='true';
865: }
866: if (($symb) && ($email)) {
867: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
868: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
869: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
870: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
871: my %storenewentry=($symb => time);
872: $status.='<br />'.&mt('Updating discussion time').': '.
873: &Apache::lonnet::put('discussiontimes',\%storenewentry,
874: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
875: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
876: }
877: my %record=&Apache::lonnet::restore('_discussion');
878: my ($temp)=keys %record;
879: unless ($temp=~/^error\:/) {
880: my %newrecord=();
881: $newrecord{'resource'}=$symb;
882: $newrecord{'subnumber'}=$record{'subnumber'}+1;
883: $status.='<br />'.&mt('Registering').': '.
884: &Apache::lonnet::cstore(\%newrecord,'_discussion');
885: }
886: } else {
887: $status.='Failed.';
888: }
889: return $status.'<br />';
890: }
891:
892: # ----------------------------------------------------------- Preview function
893:
894: sub show_preview {
895: my $r=shift;
896: my $message=&clear_out_html($ENV{'form.comment'});
897: $message=~s/\n/\<br \/\>/g;
898: $message=&Apache::lontexconvert::msgtexconverted($message);
899: my $subject=&clear_out_html($ENV{'form.subject'});
900: $subject=~s/\n/\<br \/\>/g;
901: $subject=&Apache::lontexconvert::msgtexconverted($subject);
902: $r->print('<table border="2"><tr><td>'.
903: '<b>Subject:</b> '.$subject.'<br /><br />'.
904: $message.'</td></tr></table>');
905: }
906:
907: sub generate_preview_button {
908: my $pre=&mt("Show Preview");
909: return(<<ENDPREVIEW);
910: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
911: <input type="hidden" name="subject">
912: <input type="hidden" name="comment" />
913: <input type="button" value="$pre"
914: onClick="document.mailform.onsubmit();this.form.comment.value=document.mailform.comment.value;this.form.subject.value=document.mailform.subject.value;this.form.submit();" />
915: </form>
916: ENDPREVIEW
917: }
918:
919: sub handler {
920: my $r = shift;
921: if ($r->header_only) {
922: &Apache::loncommon::content_type($r,'text/html');
923: $r->send_http_header;
924: return OK;
925: }
926:
927: # --------------------------- Get query string for limited number of parameters
928:
929: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
930: ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff','onlyunread','allposts','previous','markread','markonread','markondisp']);
931:
932: if (($ENV{'form.markondisp'}) || ($ENV{'form.markonread'})) {
933: # ---------------------- Modify setting for identification of 'NEW' posts in this discussion
934:
935: &Apache::loncommon::content_type($r,'text/html');
936: $r->send_http_header;
937: my $symb=$ENV{'form.markondisp'}?$ENV{'form.markondisp'}:$ENV{'form.markonread'};
938: my $ressymb = $symb;
939: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
940: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
941: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
942: }
943:
944: my %discinfo = ();
945: my $lastkey = $ressymb.'_lastread';
946: my $ondispkey = $ressymb.'_markondisp';
947: if ($ENV{'form.markondisp'}) {
948: $discinfo{$lastkey} = time;
949: $discinfo{$ondispkey} = 1;
950: } elsif ($ENV{'form.markonread'}) {
951: if ( defined($ENV{'previous'}) ) {
952: $discinfo{$lastkey} = $ENV{'previous'};
953: }
954: $discinfo{$ondispkey} = 0;
955: }
956: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
957: if ($ENV{'form.markondisp'}) {
958: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0');
959: } else {
960: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$ENV{'form.previous'});
961: }
962: return OK;
963: } elsif (($ENV{'form.allposts'}) || ($ENV{'form.onlyunread'})) {
964: # ----------------------------------------------------------------- Modify display setting for this discussion
965: &Apache::loncommon::content_type($r,'text/html');
966: $r->send_http_header;
967: my $symb=$ENV{'form.allposts'}?$ENV{'form.allposts'}:$ENV{'form.onlyunread'};
968: my $ressymb = $symb;
969: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
970: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
971: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
972: }
973: my %discinfo = ();
974: if ($ENV{'form.allposts'}) {
975: $discinfo{$ressymb.'_showonlyunread'} = 0;
976: } elsif ($ENV{'form.onlyunread'}) {
977: $discinfo{$ressymb.'_showonlyunread'} = 1;
978: }
979: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
980: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$ENV{'form.previous'});
981: return OK;
982: } elsif ($ENV{'form.markread'}) {
983: # ----------------------------------------------------------------- Mark new posts as read
984: &Apache::loncommon::content_type($r,'text/html');
985: $r->send_http_header;
986: my $symb=$ENV{'form.markread'};
987: my $ressymb = $symb;
988: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
989: unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
990: $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
991: }
992: my %discinfo = ();
993: my $lastkey = $ressymb.'_lastread';
994: $discinfo{$lastkey} = time;
995: &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
996: &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed reading status').'<br />','0','0');
997: return OK;
998: } elsif (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
999: # ----------------------------------------------------------------- Hide/unhide
1000: &Apache::loncommon::content_type($r,'text/html');
1001: $r->send_http_header;
1002:
1003: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
1004:
1005: my ($symb,$idx)=split(/\:\:\:/,$entry);
1006: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1007:
1008: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
1009: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1010: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1011:
1012:
1013: my $currenthidden=$contrib{'hidden'};
1014:
1015: if ($ENV{'form.hide'}) {
1016: $currenthidden.='.'.$idx.'.';
1017: } else {
1018: $currenthidden=~s/\.$idx\.//g;
1019: }
1020: my %newhash=('hidden' => $currenthidden);
1021:
1022: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
1023: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1024: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1025:
1026: &redirect_back($r,&Apache::lonnet::clutter($url),
1027: &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1028: } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) {
1029: &Apache::loncommon::content_type($r,'text/html');
1030: $r->send_http_header;
1031: if ($ENV{'form.threadedon'}) {
1032: &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
1033: &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
1034: } else {
1035: &Apache::lonnet::del('environment',['threadeddiscussion']);
1036: &Apache::lonnet::delenv('environment\.threadeddiscussion');
1037: }
1038: my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'};
1039: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1040: &redirect_back($r,&Apache::lonnet::clutter($url),
1041: &mt('Changed discussion view mode').'<br />','0','0','',$ENV{'form.previous'});
1042: } elsif ($ENV{'form.deldisc'}) {
1043: # --------------------------------------------------------------- Hide for good
1044: &Apache::loncommon::content_type($r,'text/html');
1045: $r->send_http_header;
1046:
1047: my $entry=$ENV{'form.deldisc'};
1048:
1049: my ($symb,$idx)=split(/\:\:\:/,$entry);
1050: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1051:
1052: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
1053: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1054: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1055:
1056:
1057: my $currentdeleted=$contrib{'deleted'};
1058:
1059: $currentdeleted.='.'.$idx.'.';
1060:
1061: my %newhash=('deleted' => $currentdeleted);
1062:
1063: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
1064: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1065: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1066:
1067: &redirect_back($r,&Apache::lonnet::clutter($url),
1068: &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1069: } elsif ($ENV{'form.preview'}) {
1070: # -------------------------------------------------------- User wants a preview
1071: $r->content_type('text/html');
1072: $r->send_http_header;
1073: &show_preview($r);
1074: } else {
1075: # ------------------------------------------------------------- Normal feedback
1076: my $feedurl=$ENV{'form.postdata'};
1077: $feedurl=~s/^http\:\/\///;
1078: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
1079: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1080: $feedurl=~s/\?.+$//;
1081:
1082: my $symb;
1083: if ($ENV{'form.replydisc'}) {
1084: $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0];
1085: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1086: $feedurl=&Apache::lonnet::clutter($url);
1087: } else {
1088: $symb=&Apache::lonnet::symbread($feedurl);
1089: }
1090: unless ($symb) {
1091: $symb=$ENV{'form.symb'};
1092: if ($symb) {
1093: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1094: $feedurl=&Apache::lonnet::clutter($url);
1095: }
1096: }
1097: my $goahead=1;
1098: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
1099: unless ($symb) { $goahead=0; }
1100: }
1101: # backward compatibility (bulltin boards used to be 'wrapped')
1102: if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
1103: $feedurl=~s|^/adm/wrapper||;
1104: }
1105: if ($goahead) {
1106: # Go ahead with feedback, no ambiguous reference
1107: &Apache::loncommon::content_type($r,'text/html');
1108: $r->send_http_header;
1109:
1110: if (
1111: (
1112: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
1113: )
1114: ||
1115: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1116: ||
1117: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1118: ) {
1119: # --------------------------------------------------- Print login screen header
1120: unless ($ENV{'form.sendit'}) {
1121: my $options=&screen_header($feedurl);
1122: if ($options) {
1123: &mail_screen($r,$feedurl,$options);
1124: } else {
1125: &fail_redirect($r,$feedurl);
1126: }
1127: } else {
1128:
1129: # Get previous user input
1130: my $prevattempts=&Apache::loncommon::get_previous_attempt(
1131: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1132: $ENV{'request.course.id'});
1133:
1134: # Get output from resource
1135: my $usersaw=&resource_output($feedurl);
1136:
1137: # Get resource answer (need to allow student to view grades for this to work)
1138: &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
1139: my $useranswer=&Apache::loncommon::get_student_answers(
1140: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1141: $ENV{'request.course.id'});
1142: &Apache::lonnet::delenv('allowed.vgr');
1143: # Get attachments, if any, and not too large
1144: my $attachmenturl='';
1145: if ($ENV{'form.attachment.filename'}) {
1146: unless (length($ENV{'form.attachment'})>131072) {
1147: $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback');
1148: }
1149: }
1150: # Filter HTML out of message (could be nasty)
1151: my $message=&clear_out_html($ENV{'form.comment'});
1152:
1153: # Assemble email
1154: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
1155: $usersaw,$useranswer);
1156:
1157: # Who gets this?
1158: my ($typestyle,%to) = &decide_receiver($feedurl);
1159:
1160: # Actually send mail
1161: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
1162: $attachmenturl,%to);
1163:
1164: # Discussion? Store that.
1165:
1166: my $numpost=0;
1167: if ($ENV{'form.discuss'}) {
1168: my $subject = &clear_out_html($ENV{'form.subject'});
1169: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl,$subject);
1170: $numpost++;
1171: }
1172:
1173: if ($ENV{'form.anondiscuss'}) {
1174: my $subject = &clear_out_html($ENV{'form.subject'});
1175: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl,$subject);
1176: $numpost++;
1177: }
1178:
1179:
1180: # Receipt screen and redirect back to where came from
1181: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status,$ENV{'form.previous'});
1182:
1183: }
1184: } else {
1185: # Unable to give feedback
1186: &no_redirect_back($r,$feedurl);
1187: }
1188: } else {
1189: # Ambiguous Problem Resource
1190: if ( &Apache::lonnet::mod_perl_version() == 2 ) {
1191: &Apache::lonnet::cleanenv();
1192: }
1193: $r->internal_redirect('/adm/ambiguous');
1194: }
1195: }
1196: return OK;
1197: }
1198:
1199: 1;
1200: __END__
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