1: # The LearningOnline Network
2: # Feedback
3: #
4: # $Id: lonfeedback.pm,v 1.26 2002/04/03 18:47:39 www 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: # (Internal Server Error Handler
29: #
30: # (Login Screen
31: # 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14,
32: # 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer)
33: #
34: # 3/1/1 Gerd Kortemeyer)
35: #
36: # 3/1,2/3,2/5,2/6,2/8 Gerd Kortemeyer
37: # 2/9 Guy Albertelli
38: # 2/10 Gerd Kortemeyer
39: # 2/13 Guy Albertelli
40: # 7/25 Gerd Kortemeyer
41: # 7/26 Guy Albertelli
42: # 7/26,8/10,10/1,11/5,11/6,12/27,12/29 Gerd Kortemeyer
43: # YEAR=2002
44: # 1/1,1/16 Gerd Kortemeyer
45: #
46:
47: package Apache::lonfeedback;
48:
49: use strict;
50: use Apache::Constants qw(:common);
51: use Apache::lonmsg();
52: use Apache::loncommon();
53:
54: sub mail_screen {
55: my ($r,$feedurl,$options) = @_;
56: $r->print(<<ENDDOCUMENT);
57: <html>
58: <head>
59: <title>The LearningOnline Network with CAPA</title>
60: <meta http-equiv="pragma" content="no-cache"></meta>
61: <script>
62: function gosubmit() {
63: var rec=0;
64: if (typeof(document.mailform.elements.author)!="undefined") {
65: if (document.mailform.elements.author.checked) {
66: rec=1;
67: }
68: }
69: if (typeof(document.mailform.elements.question)!="undefined") {
70: if (document.mailform.elements.question.checked) {
71: rec=1;
72: }
73: }
74: if (typeof(document.mailform.elements.course)!="undefined") {
75: if (document.mailform.elements.course.checked) {
76: rec=1;
77: }
78: }
79: if (typeof(document.mailform.elements.policy)!="undefined") {
80: if (document.mailform.elements.policy.checked) {
81: rec=1;
82: }
83: }
84: if (typeof(document.mailform.elements.discuss)!="undefined") {
85: if (document.mailform.elements.discuss.checked) {
86: rec=1;
87: }
88: }
89: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
90: if (document.mailform.elements.anondiscuss.checked) {
91: rec=1;
92: }
93: }
94:
95: if (rec) {
96: document.mailform.submit();
97: } else {
98: alert('Please check a feedback type.');
99: }
100: }
101: </script>
102: </head>
103: <body bgcolor="#FFFFFF" onLoad="window.focus();">
104: <img align=right src=/adm/lonIcons/lonlogos.gif>
105: <h1>Feedback</h1>
106: <h2><tt>$feedurl</tt></h2>
107: <form action="/adm/feedback" method=post name=mailform>
108: <input type=hidden name=postdata value="$feedurl">
109: Please check at least one of the following feedback types:
110: $options<hr>
111: My question/comment/feedback:<p>
112: <textarea name=comment cols=60 rows=10 wrap=hard>
113: </textarea><p>
114: <input type=hidden name=sendit value=1>
115: <input type=button value="Send Feedback" onClick='gosubmit();'></input>
116: </form>
117: </body>
118: </html>
119: ENDDOCUMENT
120: }
121:
122: sub fail_redirect {
123: my ($r,$feedurl) = @_;
124: $r->print (<<ENDFAILREDIR);
125: <head><title>Feedback not sent</title>
126: <meta http-equiv="pragma" content="no-cache"></meta>
127: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
128: </head>
129: <html>
130: <body bgcolor="#FFFFFF">
131: <img align=right src=/adm/lonIcons/lonlogos.gif>
132: <b>Sorry, no recipients ...</b>
133: </body>
134: </html>
135: ENDFAILREDIR
136: }
137:
138: sub redirect_back {
139: my ($r,$feedurl,$typestyle,$sendsomething,$status) = @_;
140: $r->print (<<ENDREDIR);
141: <head>
142: <title>Feedback sent</title>
143: <meta http-equiv="pragma" content="no-cache"></meta>
144: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
145: </head>
146: <html>
147: <body bgcolor="#FFFFFF">
148: <img align=right src=/adm/lonIcons/lonlogos.gif>
149: $typestyle
150: <b>Sent $sendsomething message(s).</b>
151: <font color=red>$status</font>
152: </body>
153: </html>
154: ENDREDIR
155: }
156:
157: sub no_redirect_back {
158: my ($r,$feedurl) = @_;
159: $r->print (<<ENDNOREDIR);
160: <head><title>Feedback not sent</title>
161: <meta http-equiv="pragma" content="no-cache"></meta>
162: ENDNOREDIR
163:
164: if ($feedurl!~/^\/adm\/feedback/) {
165: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
166: }
167:
168: $r->print (<<ENDNOREDIRTWO);
169: </head>
170: <html>
171: <body bgcolor="#FFFFFF">
172: <img align=right src=/adm/lonIcons/lonlogos.gif>
173: <b>Sorry, no feedback possible on this resource ...</b>
174: </body>
175: </html>
176: ENDNOREDIRTWO
177: }
178:
179: sub screen_header {
180: my ($feedurl) = @_;
181: my $options='';
182: if (($feedurl=~/^\/res/) && ($feedurl!~/^\/res\/adm/)) {
183: $options=
184: '<p><input type=checkbox name=author> Feedback to resource author';
185: }
186: if ($ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) {
187: $options.=
188: '<br><input type=checkbox name=question> Question about resource content';
189: }
190: if ($ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) {
191: $options.=
192: '<br><input type=checkbox name=course> '.
193: 'Question/Comment/Feedback about course content';
194: }
195: if ($ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) {
196: $options.=
197: '<br><input type=checkbox name=policy> '.
198: 'Question/Comment/Feedback about course policy';
199: }
200:
201: if ($ENV{'request.course.id'}) {
202: if (&Apache::lonnet::allowed('pch',
203: $ENV{'request.course.id'}.
204: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
205: $options.='<br><input type=checkbox name=discuss> '.
206: '<b>Contribution to course discussion of resource</b>';
207: $options.='<br><input type=checkbox name=anondiscuss> '.
208: '<b>Anonymous contribution to course discussion of resource</b>'.
209: ' (name only visible to course faculty)';
210: }
211: }
212: return $options;
213: }
214:
215: sub resource_output {
216: my ($feedurl) = @_;
217: my $usersaw=&Apache::lonnet::ssi($feedurl);
218: $usersaw=~s/\<body[^\>]*\>//gi;
219: $usersaw=~s/\<\/body\>//gi;
220: $usersaw=~s/\<html\>//gi;
221: $usersaw=~s/\<\/html\>//gi;
222: $usersaw=~s/\<head\>//gi;
223: $usersaw=~s/\<\/head\>//gi;
224: $usersaw=~s/action\s*\=/would_be_action\=/gi;
225: return $usersaw;
226: }
227:
228: sub clear_out_html {
229: my $message=$ENV{'form.comment'};
230: $message=~s/\</\<\;/g;
231: $message=~s/\>/\>\;/g;
232: return $message;
233: }
234:
235: sub assemble_email {
236: my ($feedurl,$message,$prevattempts,$usersaw)=@_;
237: my $email=<<"ENDEMAIL";
238: Refers to <a href="$feedurl">$feedurl</a>
239:
240: $message
241: ENDEMAIL
242: my $citations=<<"ENDCITE";
243: <h2>Previous attempts of student (if applicable)</h2>
244: $prevattempts
245: <p><hr>
246: <h2>Original screen output (if applicable)</h2>
247: $usersaw
248: ENDCITE
249: return ($email,$citations);
250: }
251:
252: sub decide_receiver {
253: my ($feedurl) = @_;
254: my $typestyle='';
255: my %to=();
256: if ($ENV{'form.author'}) {
257: $typestyle.='Submitting as Author Feedback<br>';
258: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
259: $to{$2.':'.$1}=1;
260: }
261: if ($ENV{'form.question'}) {
262: $typestyle.='Submitting as Question<br>';
263: foreach (split(/\,/,
264: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
265: ) {
266: $to{$_}=1;
267: }
268: }
269: if ($ENV{'form.course'}) {
270: $typestyle.='Submitting as Comment<br>';
271: foreach (split(/\,/,
272: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
273: ) {
274: $to{$_}=1;
275: }
276: }
277: if ($ENV{'form.policy'}) {
278: $typestyle.='Submitting as Policy Feedback<br>';
279: foreach (split(/\,/,
280: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
281: ) {
282: $to{$_}=1;
283: }
284: }
285: return ($typestyle,%to);
286: }
287:
288: sub send_msg {
289: my ($feedurl,$email,$citations,%to)=@_;
290: my $status='';
291: my $sendsomething=0;
292: foreach (keys %to) {
293: if ($_) {
294: my $declutter=&Apache::lonnet::declutter($feedurl);
295: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
296: 'Feedback ['.$declutter.']',$email,$citations) eq 'ok') {
297: $status.='<br>Error sending message to '.$_.'<br>';
298: } else {
299: $sendsomething++;
300: }
301: }
302: }
303:
304: my %record=&Apache::lonnet::restore('_feedback');
305: my ($temp)=keys %record;
306: unless ($temp=~/^error\:/) {
307: my %newrecord=();
308: $newrecord{'resource'}=$feedurl;
309: $newrecord{'subnumber'}=$record{'subnumber'}+1;
310: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
311: $status.='<br>Not registered<br>';
312: }
313: }
314:
315: return ($status,$sendsomething);
316: }
317:
318: sub adddiscuss {
319: my ($symb,$email,$anon)=@_;
320: my $status='';
321: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
322: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
323:
324: my %contrib=('message' => $email,
325: 'sendername' => $ENV{'user.name'},
326: 'senderdomain' => $ENV{'user.domain'},
327: 'screenname' => $ENV{'environment.screenname'},
328: 'plainname' => $ENV{'environment.firstname'}.' '.
329: $ENV{'environment.middlename'}.' '.
330: $ENV{'environment.lastname'}.' '.
331: $ENV{'enrironment.generation'});
332: if ($anon) {
333: $contrib{'anonymous'}='true';
334: }
335: if (($symb) && ($email)) {
336: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
337: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
338: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
339: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
340: my %storenewentry=($symb => time);
341: $status.='<br>Updating discussion time: '.
342: &Apache::lonnet::put('discussiontimes',\%storenewentry,
343: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
344: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
345: }
346: my %record=&Apache::lonnet::restore('_discussion');
347: my ($temp)=keys %record;
348: unless ($temp=~/^error\:/) {
349: my %newrecord=();
350: $newrecord{'resource'}=$symb;
351: $newrecord{'subnumber'}=$record{'subnumber'}+1;
352: $status.='<br>Registering: '.
353: &Apache::lonnet::cstore(\%newrecord,'_discussion');
354: }
355: } else {
356: $status.='Failed.';
357: }
358: return $status.'<br>';
359: }
360:
361: sub handler {
362: my $r = shift;
363: if ($r->header_only) {
364: $r->content_type('text/html');
365: $r->send_http_header;
366: return OK;
367: }
368:
369: # --------------------------- Get query string for limited number of parameters
370:
371: foreach (split(/&/,$ENV{'QUERY_STRING'})) {
372: my ($name, $value) = split(/=/,$_);
373: $value =~ tr/+/ /;
374: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
375: if (($name eq 'hide') || ($name eq 'unhide') || ($name eq 'postdata')) {
376: unless ($ENV{'form.'.$name}) {
377: $ENV{'form.'.$name}=$value;
378: }
379: }
380: }
381:
382: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
383: # ----------------------------------------------------------------- Hide/unhide
384: $r->content_type('text/html');
385: $r->send_http_header;
386:
387: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
388:
389: my ($symb,$idx)=split(/\:\:\:/,$entry);
390: my ($map,$ind,$url)=split(/\_\_\_/,$symb);
391:
392: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
393: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
394: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
395:
396:
397: my $currenthidden=$contrib{'hidden'};
398:
399: if ($ENV{'form.hide'}) {
400: $currenthidden.='.'.$idx.'.';
401: } else {
402: $currenthidden=~s/\.$idx\.//g;
403: }
404: my %newhash=('hidden' => $currenthidden);
405:
406: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
407: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
408: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
409:
410: &redirect_back($r,'/res/'.$url,'Changed discussion status<p>','0');
411:
412:
413: } else {
414: # ------------------------------------------------------------- Normal feedback
415: my $feedurl=$ENV{'form.postdata'};
416: $feedurl=~s/^http\:\/\///;
417: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
418: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
419:
420: my $symb=&Apache::lonnet::symbread($feedurl);
421: my $goahead=1;
422: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
423: unless ($symb) { $goahead=0; }
424: }
425:
426: if ($goahead) {
427: # Go ahead with feedback, no ambiguous reference
428: $r->content_type('text/html');
429: $r->send_http_header;
430:
431: if (
432: (
433: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
434: )
435: ||
436: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
437: ) {
438: # --------------------------------------------------- Print login screen header
439: unless ($ENV{'form.sendit'}) {
440: my $options=&screen_header($feedurl);
441: if ($options) {
442: &mail_screen($r,$feedurl,$options);
443: } else {
444: &fail_redirect($r,$feedurl);
445: }
446: } else {
447:
448: # Get previous user input
449: my $prevattempts=&Apache::loncommon::get_previous_attempt(
450: $symb,$ENV{'user.name'},$ENV{'user.domain'},
451: $ENV{'request.course.id'});
452:
453: # Get output from resource
454: my $usersaw=&resource_output($feedurl);
455:
456: # Filter HTML out of message (could be nasty)
457: my $message=&clear_out_html;
458:
459: # Assemble email
460: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
461: $usersaw);
462:
463: # Who gets this?
464: my ($typestyle,%to) = &decide_receiver($feedurl);
465:
466: # Actually send mail
467: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,%to);
468:
469: # Discussion? Store that.
470:
471: if ($ENV{'form.discuss'}) {
472: $typestyle.=&adddiscuss($symb,$message);
473: }
474:
475: if ($ENV{'form.anondiscuss'}) {
476: $typestyle.=&adddiscuss($symb,$message,1);
477: }
478:
479:
480: # Receipt screen and redirect back to where came from
481: &redirect_back($r,$feedurl,$typestyle,$numsent,$status);
482:
483: }
484: } else {
485: # Unable to give feedback
486: &no_redirect_back($r,$feedurl);
487: }
488: } else {
489: # Ambiguous Problem Resource
490: $r->internal_redirect('/adm/ambiguous');
491: }
492: }
493: return OK;
494: }
495:
496: 1;
497: __END__
498:
499:
500:
501:
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>
![[BACK]](/icons/back.gif){kind=icon}
Return to lonfeedback.pm CVS log ![[TXT]](/icons/text.gif){kind=icon}
![[DIR]](/icons/dir.gif){kind=icon}
Up to [LON-CAPA] / loncom / interface