Annotation of loncom/interface/lonfeedback.pm, revision 1.25
1.1 www 1: # The LearningOnline Network
2: # Feedback
3: #
1.25 ! www 4: # $Id: lonfeedback.pm,v 1.24 2002/03/02 03:50:27 harris41 Exp $
1.19 albertel 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: #
1.1 www 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: #
1.5 www 36: # 3/1,2/3,2/5,2/6,2/8 Gerd Kortemeyer
1.7 albertel 37: # 2/9 Guy Albertelli
1.8 www 38: # 2/10 Gerd Kortemeyer
1.9 albertel 39: # 2/13 Guy Albertelli
1.10 www 40: # 7/25 Gerd Kortemeyer
1.13 www 41: # 7/26 Guy Albertelli
1.21 www 42: # 7/26,8/10,10/1,11/5,11/6,12/27,12/29 Gerd Kortemeyer
1.22 www 43: # YEAR=2002
1.23 www 44: # 1/1,1/16 Gerd Kortemeyer
1.22 www 45: #
1.7 albertel 46:
1.1 www 47: package Apache::lonfeedback;
48:
49: use strict;
50: use Apache::Constants qw(:common);
1.3 www 51: use Apache::lonmsg();
1.9 albertel 52: use Apache::loncommon();
1.1 www 53:
1.6 albertel 54: sub mail_screen {
55: my ($r,$feedurl,$options) = @_;
56: $r->print(<<ENDDOCUMENT);
1.1 www 57: <html>
58: <head>
59: <title>The LearningOnline Network with CAPA</title>
1.7 albertel 60: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 61: <script>
62: function gosubmit() {
63: var rec=0;
1.12 albertel 64: if (typeof(document.mailform.elements.author)!="undefined") {
1.5 www 65: if (document.mailform.elements.author.checked) {
66: rec=1;
67: }
68: }
1.12 albertel 69: if (typeof(document.mailform.elements.question)!="undefined") {
1.5 www 70: if (document.mailform.elements.question.checked) {
71: rec=1;
72: }
73: }
1.12 albertel 74: if (typeof(document.mailform.elements.course)!="undefined") {
1.5 www 75: if (document.mailform.elements.course.checked) {
76: rec=1;
77: }
78: }
1.12 albertel 79: if (typeof(document.mailform.elements.policy)!="undefined") {
1.5 www 80: if (document.mailform.elements.policy.checked) {
81: rec=1;
82: }
83: }
1.12 albertel 84: if (typeof(document.mailform.elements.discuss)!="undefined") {
1.10 www 85: if (document.mailform.elements.discuss.checked) {
86: rec=1;
87: }
88: }
1.14 www 89: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
90: if (document.mailform.elements.anondiscuss.checked) {
91: rec=1;
92: }
93: }
1.5 www 94:
95: if (rec) {
96: document.mailform.submit();
97: } else {
98: alert('Please check a feedback type.');
99: }
100: }
101: </script>
1.1 www 102: </head>
1.5 www 103: <body bgcolor="#FFFFFF" onLoad="window.focus();">
1.2 www 104: <img align=right src=/adm/lonIcons/lonlogos.gif>
1.1 www 105: <h1>Feedback</h1>
1.2 www 106: <h2><tt>$feedurl</tt></h2>
1.5 www 107: <form action="/adm/feedback" method=post name=mailform>
1.2 www 108: <input type=hidden name=postdata value="$feedurl">
1.5 www 109: Please check at least one of the following feedback types:
1.2 www 110: $options<hr>
111: My question/comment/feedback:<p>
1.16 www 112: <textarea name=comment cols=60 rows=10 wrap=hard>
1.2 www 113: </textarea><p>
1.5 www 114: <input type=hidden name=sendit value=1>
115: <input type=button value="Send Feedback" onClick='gosubmit();'></input>
1.2 www 116: </form>
1.1 www 117: </body>
118: </html>
119: ENDDOCUMENT
1.6 albertel 120: }
121:
122: sub fail_redirect {
123: my ($r,$feedurl) = @_;
124: $r->print (<<ENDFAILREDIR);
1.5 www 125: <head><title>Feedback not sent</title>
1.7 albertel 126: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 127: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
128: </head>
129: <html>
130: <body bgcolor="#FFFFFF">
1.8 www 131: <img align=right src=/adm/lonIcons/lonlogos.gif>
132: <b>Sorry, no recipients ...</b>
1.5 www 133: </body>
134: </html>
135: ENDFAILREDIR
136: }
1.4 www 137:
1.6 albertel 138: sub redirect_back {
139: my ($r,$feedurl,$typestyle,$sendsomething,$status) = @_;
140: $r->print (<<ENDREDIR);
1.3 www 141: <head>
142: <title>Feedback sent</title>
1.7 albertel 143: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 144: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
1.2 www 145: </head>
146: <html>
147: <body bgcolor="#FFFFFF">
1.8 www 148: <img align=right src=/adm/lonIcons/lonlogos.gif>
1.5 www 149: $typestyle
150: <b>Sent $sendsomething message(s).</b>
1.3 www 151: <font color=red>$status</font>
1.2 www 152: </body>
153: </html>
154: ENDREDIR
155: }
1.6 albertel 156:
157: sub no_redirect_back {
158: my ($r,$feedurl) = @_;
159: $r->print (<<ENDNOREDIR);
1.2 www 160: <head><title>Feedback not sent</title>
1.7 albertel 161: <meta http-equiv="pragma" content="no-cache"></meta>
162: ENDNOREDIR
163:
1.8 www 164: if ($feedurl!~/^\/adm\/feedback/) {
1.7 albertel 165: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
166: }
167:
1.8 www 168: $r->print (<<ENDNOREDIRTWO);
1.2 www 169: </head>
170: <html>
171: <body bgcolor="#FFFFFF">
1.8 www 172: <img align=right src=/adm/lonIcons/lonlogos.gif>
173: <b>Sorry, no feedback possible on this resource ...</b>
1.2 www 174: </body>
175: </html>
1.8 www 176: ENDNOREDIRTWO
1.2 www 177: }
1.6 albertel 178:
179: sub screen_header {
180: my ($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: $options.=
1.8 www 188: '<br><input type=checkbox name=question> Question about resource content';
1.6 albertel 189: }
190: if ($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: $options.=
197: '<br><input type=checkbox name=policy> '.
198: 'Question/Comment/Feedback about course policy';
1.10 www 199: }
1.20 www 200:
1.10 www 201: if ($ENV{'request.course.id'}) {
1.23 www 202: if (&Apache::lonnet::allowed('pch',
203: $ENV{'request.course.id'}.
204: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.10 www 205: $options.='<br><input type=checkbox name=discuss> '.
206: '<b>Contribution to course discussion of resource</b>';
1.14 www 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)';
1.20 www 210: }
1.14 www 211: }
1.6 albertel 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'}) {
1.8 www 257: $typestyle.='Submitting as Author Feedback<br>';
1.6 albertel 258: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
259: $to{$2.':'.$1}=1;
260: }
261: if ($ENV{'form.question'}) {
1.8 www 262: $typestyle.='Submitting as Question<br>';
1.24 harris41 263: foreach (split(/\,/,
264: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
265: ) {
1.6 albertel 266: $to{$_}=1;
1.24 harris41 267: }
1.6 albertel 268: }
269: if ($ENV{'form.course'}) {
1.8 www 270: $typestyle.='Submitting as Comment<br>';
1.24 harris41 271: foreach (split(/\,/,
272: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
273: ) {
1.6 albertel 274: $to{$_}=1;
1.24 harris41 275: }
1.6 albertel 276: }
277: if ($ENV{'form.policy'}) {
1.8 www 278: $typestyle.='Submitting as Policy Feedback<br>';
1.24 harris41 279: foreach (split(/\,/,
280: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
281: ) {
1.6 albertel 282: $to{$_}=1;
1.24 harris41 283: }
1.6 albertel 284: }
285: return ($typestyle,%to);
286: }
287:
288: sub send_msg {
289: my ($feedurl,$email,$citations,%to)=@_;
290: my $status='';
291: my $sendsomething=0;
1.24 harris41 292: foreach (keys %to) {
1.6 albertel 293: if ($_) {
1.22 www 294: my $declutter=&Apache::lonnet::declutter($feedurl);
1.8 www 295: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
1.22 www 296: 'Feedback ['.$declutter.']',$email,$citations) eq 'ok') {
1.6 albertel 297: $status.='<br>Error sending message to '.$_.'<br>';
298: } else {
299: $sendsomething++;
300: }
301: }
1.24 harris41 302: }
1.18 www 303:
304: my %record=&Apache::lonnet::restore('_feedback');
305: my ($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: $status.='<br>Not registered<br>';
312: }
313: }
314:
1.6 albertel 315: return ($status,$sendsomething);
316: }
317:
1.13 www 318: sub adddiscuss {
1.14 www 319: my ($symb,$email,$anon)=@_;
1.13 www 320: my $status='';
1.23 www 321: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
322: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.20 www 323:
1.13 www 324: my %contrib=('message' => $email,
325: 'sendername' => $ENV{'user.name'},
326: 'senderdomain' => $ENV{'user.domain'});
1.14 www 327: if ($anon) {
328: $contrib{'anonymous'}='true';
329: }
1.13 www 330: if (($symb) && ($email)) {
1.14 www 331: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
1.13 www 332: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
333: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1.17 www 334: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.21 www 335: my %storenewentry=($symb => time);
336: $status.='<br>Updating discussion time: '.
337: &Apache::lonnet::put('discussiontimes',\%storenewentry,
338: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
339: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.13 www 340: }
1.17 www 341: my %record=&Apache::lonnet::restore('_discussion');
342: my ($temp)=keys %record;
343: unless ($temp=~/^error\:/) {
344: my %newrecord=();
345: $newrecord{'resource'}=$symb;
346: $newrecord{'subnumber'}=$record{'subnumber'}+1;
1.21 www 347: $status.='<br>Registering: '.
348: &Apache::lonnet::cstore(\%newrecord,'_discussion');
1.20 www 349: }
350: } else {
351: $status.='Failed.';
1.17 www 352: }
353: return $status.'<br>';
1.13 www 354: }
355:
1.6 albertel 356: sub handler {
357: my $r = shift;
1.8 www 358: if ($r->header_only) {
359: $r->content_type('text/html');
360: $r->send_http_header;
361: return OK;
362: }
1.15 www 363:
364: # --------------------------- Get query string for limited number of parameters
365:
1.24 harris41 366: foreach (split(/&/,$ENV{'QUERY_STRING'})) {
1.15 www 367: my ($name, $value) = split(/=/,$_);
368: $value =~ tr/+/ /;
369: $value =~ s/%([a-fA-F0-9][a-fA-F0-9])/pack("C",hex($1))/eg;
1.25 ! www 370: if (($name eq 'hide') || ($name eq 'unhide') || ($name eq 'postdata')) {
1.15 www 371: unless ($ENV{'form.'.$name}) {
372: $ENV{'form.'.$name}=$value;
373: }
374: }
1.24 harris41 375: }
1.15 www 376:
377: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
378: # ----------------------------------------------------------------- Hide/unhide
379: $r->content_type('text/html');
380: $r->send_http_header;
381:
382: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
383:
384: my ($symb,$idx)=split(/\:\:\:/,$entry);
385: my ($map,$ind,$url)=split(/\_\_\_/,$symb);
386:
387: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
388: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
389: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
390:
391:
392: my $currenthidden=$contrib{'hidden'};
393:
394: if ($ENV{'form.hide'}) {
395: $currenthidden.='.'.$idx.'.';
396: } else {
397: $currenthidden=~s/\.$idx\.//g;
398: }
399: my %newhash=('hidden' => $currenthidden);
400:
401: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
402: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
403: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
404:
405: &redirect_back($r,'/res/'.$url,'Changed discussion status<p>','0');
406:
407:
408: } else {
409: # ------------------------------------------------------------- Normal feedback
1.6 albertel 410: my $feedurl=$ENV{'form.postdata'};
411: $feedurl=~s/^http\:\/\///;
412: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
413: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1.8 www 414:
415: my $symb=&Apache::lonnet::symbread($feedurl);
416: my $goahead=1;
417: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
418: unless ($symb) { $goahead=0; }
419: }
420:
421: if ($goahead) {
422: # Go ahead with feedback, no ambiguous reference
423: $r->content_type('text/html');
424: $r->send_http_header;
1.6 albertel 425:
1.8 www 426: if (
1.7 albertel 427: (
428: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
429: )
430: ||
431: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
432: ) {
1.6 albertel 433: # --------------------------------------------------- Print login screen header
434: unless ($ENV{'form.sendit'}) {
435: my $options=&screen_header($feedurl);
436: if ($options) {
437: &mail_screen($r,$feedurl,$options);
438: } else {
439: &fail_redirect($r,$feedurl);
440: }
441: } else {
442:
443: # Get previous user input
1.9 albertel 444: my $prevattempts=&Apache::loncommon::get_previous_attempt(
1.11 albertel 445: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1.9 albertel 446: $ENV{'request.course.id'});
1.6 albertel 447:
448: # Get output from resource
449: my $usersaw=&resource_output($feedurl);
450:
451: # Filter HTML out of message (could be nasty)
452: my $message=&clear_out_html;
453:
454: # Assemble email
1.8 www 455: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
456: $usersaw);
1.6 albertel 457:
458: # Who gets this?
459: my ($typestyle,%to) = &decide_receiver($feedurl);
460:
461: # Actually send mail
462: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,%to);
1.13 www 463:
464: # Discussion? Store that.
465:
466: if ($ENV{'form.discuss'}) {
467: $typestyle.=&adddiscuss($symb,$message);
468: }
1.6 albertel 469:
1.14 www 470: if ($ENV{'form.anondiscuss'}) {
471: $typestyle.=&adddiscuss($symb,$message,1);
472: }
473:
474:
1.6 albertel 475: # Receipt screen and redirect back to where came from
1.8 www 476: &redirect_back($r,$feedurl,$typestyle,$numsent,$status);
1.6 albertel 477:
478: }
1.8 www 479: } else {
1.7 albertel 480: # Unable to give feedback
1.6 albertel 481: &no_redirect_back($r,$feedurl);
1.8 www 482: }
483: } else {
484: # Ambiguous Problem Resource
485: $r->internal_redirect('/adm/ambiguous');
1.6 albertel 486: }
1.15 www 487: }
1.6 albertel 488: return OK;
1.1 www 489: }
490:
491: 1;
492: __END__
1.14 www 493:
1.2 www 494:
495:
496:
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