Annotation of loncom/interface/lonfeedback.pm, revision 1.36
1.1 www 1: # The LearningOnline Network
2: # Feedback
3: #
1.36 ! www 4: # $Id: lonfeedback.pm,v 1.35 2002/10/25 13:57:28 www 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();
1.33 www 53: use Apache::lontexconvert();
1.1 www 54:
1.6 albertel 55: sub mail_screen {
56: my ($r,$feedurl,$options) = @_;
1.29 www 57: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
58: '','onLoad="window.focus();"');
1.6 albertel 59: $r->print(<<ENDDOCUMENT);
1.1 www 60: <html>
61: <head>
62: <title>The LearningOnline Network with CAPA</title>
1.7 albertel 63: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 64: <script>
65: function gosubmit() {
66: var rec=0;
1.12 albertel 67: if (typeof(document.mailform.elements.author)!="undefined") {
1.5 www 68: if (document.mailform.elements.author.checked) {
69: rec=1;
70: }
71: }
1.12 albertel 72: if (typeof(document.mailform.elements.question)!="undefined") {
1.5 www 73: if (document.mailform.elements.question.checked) {
74: rec=1;
75: }
76: }
1.12 albertel 77: if (typeof(document.mailform.elements.course)!="undefined") {
1.5 www 78: if (document.mailform.elements.course.checked) {
79: rec=1;
80: }
81: }
1.12 albertel 82: if (typeof(document.mailform.elements.policy)!="undefined") {
1.5 www 83: if (document.mailform.elements.policy.checked) {
84: rec=1;
85: }
86: }
1.12 albertel 87: if (typeof(document.mailform.elements.discuss)!="undefined") {
1.10 www 88: if (document.mailform.elements.discuss.checked) {
89: rec=1;
90: }
91: }
1.14 www 92: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
93: if (document.mailform.elements.anondiscuss.checked) {
94: rec=1;
95: }
96: }
1.5 www 97:
98: if (rec) {
99: document.mailform.submit();
100: } else {
101: alert('Please check a feedback type.');
102: }
103: }
104: </script>
1.1 www 105: </head>
1.29 www 106: $bodytag
1.2 www 107: <h2><tt>$feedurl</tt></h2>
1.5 www 108: <form action="/adm/feedback" method=post name=mailform>
1.2 www 109: <input type=hidden name=postdata value="$feedurl">
1.5 www 110: Please check at least one of the following feedback types:
1.2 www 111: $options<hr>
112: My question/comment/feedback:<p>
1.16 www 113: <textarea name=comment cols=60 rows=10 wrap=hard>
1.2 www 114: </textarea><p>
1.5 www 115: <input type=hidden name=sendit value=1>
116: <input type=button value="Send Feedback" onClick='gosubmit();'></input>
1.2 www 117: </form>
1.1 www 118: ENDDOCUMENT
1.33 www 119: $r->print(&generate_preview_button().'</body></html>');
1.6 albertel 120: }
121:
122: sub fail_redirect {
123: my ($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 {
1.32 albertel 139: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_;
1.6 albertel 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
1.32 albertel 150: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
1.3 www 151: <font color=red>$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 $options='';
1.35 www 182: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
1.6 albertel 183: $options=
184: '<p><input type=checkbox name=author> Feedback to resource author';
185: }
1.36 ! www 186: if (&feedback_available(1)) {
1.6 albertel 187: $options.=
1.8 www 188: '<br><input type=checkbox name=question> Question about resource content';
1.6 albertel 189: }
1.36 ! www 190: if (&feedback_available(0,1)) {
1.6 albertel 191: $options.=
192: '<br><input type=checkbox name=course> '.
193: 'Question/Comment/Feedback about course content';
194: }
1.36 ! www 195: if (&feedback_available(0,0,1)) {
1.6 albertel 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'};
1.33 www 230: $message=~s/\<\/*m\s*\>//g;
1.6 albertel 231: $message=~s/\</\<\;/g;
232: $message=~s/\>/\>\;/g;
233: return $message;
234: }
235:
236: sub assemble_email {
237: my ($feedurl,$message,$prevattempts,$usersaw)=@_;
238: my $email=<<"ENDEMAIL";
239: Refers to <a href="$feedurl">$feedurl</a>
240:
241: $message
242: ENDEMAIL
243: my $citations=<<"ENDCITE";
244: <h2>Previous attempts of student (if applicable)</h2>
245: $prevattempts
246: <p><hr>
247: <h2>Original screen output (if applicable)</h2>
248: $usersaw
249: ENDCITE
250: return ($email,$citations);
251: }
252:
1.35 www 253: sub secapply {
254: my $rec=shift;
1.36 ! www 255: my $defaultflag=shift;
! 256: $rec=~s/\s+//g;
! 257: $rec=~s/\@/\:/g;
! 258: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
! 259: if ($sections) {
! 260: foreach (split(/\;/,$sections)) {
! 261: if (($_ eq $ENV{'request.course.sec'}) ||
! 262: ($defaultflag && ($_ eq '*'))) {
! 263: return $adr;
! 264: }
! 265: }
! 266: } else {
! 267: return $rec;
! 268: }
! 269: return '';
1.35 www 270: }
271:
1.6 albertel 272: sub decide_receiver {
1.36 ! www 273: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
1.6 albertel 274: my $typestyle='';
275: my %to=();
1.36 ! www 276: if ($ENV{'form.author'}||$author) {
1.8 www 277: $typestyle.='Submitting as Author Feedback<br>';
1.6 albertel 278: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
279: $to{$2.':'.$1}=1;
280: }
1.36 ! www 281: if ($ENV{'form.question'}||$question) {
1.8 www 282: $typestyle.='Submitting as Question<br>';
1.24 harris41 283: foreach (split(/\,/,
284: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
285: ) {
1.36 ! www 286: my $rec=&secapply($_,$defaultflag);
! 287: if ($rec) { $to{$rec}=1; }
1.24 harris41 288: }
1.6 albertel 289: }
1.36 ! www 290: if ($ENV{'form.course'}||$course) {
1.8 www 291: $typestyle.='Submitting as Comment<br>';
1.24 harris41 292: foreach (split(/\,/,
293: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
294: ) {
1.36 ! www 295: my $rec=&secapply($_,$defaultflag);
! 296: if ($rec) { $to{$rec}=1; }
1.24 harris41 297: }
1.6 albertel 298: }
1.36 ! www 299: if ($ENV{'form.policy'}||$policy) {
1.8 www 300: $typestyle.='Submitting as Policy Feedback<br>';
1.24 harris41 301: foreach (split(/\,/,
302: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
303: ) {
1.36 ! www 304: my $rec=&secapply($_,$defaultflag);
! 305: if ($rec) { $to{$rec}=1; }
1.24 harris41 306: }
1.6 albertel 307: }
1.36 ! www 308: if ((scalar(%to) eq '0') && (!$defaultflag)) {
! 309: ($typestyle,%to)=
! 310: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
! 311: }
1.6 albertel 312: return ($typestyle,%to);
1.36 ! www 313: }
! 314:
! 315: sub feedback_available {
! 316: my ($question,$course,$policy)=@_;
! 317: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
! 318: return scalar(%to);
1.6 albertel 319: }
320:
321: sub send_msg {
322: my ($feedurl,$email,$citations,%to)=@_;
323: my $status='';
324: my $sendsomething=0;
1.24 harris41 325: foreach (keys %to) {
1.6 albertel 326: if ($_) {
1.22 www 327: my $declutter=&Apache::lonnet::declutter($feedurl);
1.8 www 328: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
1.34 www 329: 'Feedback ['.$declutter.']',$email,$citations)=~/ok/) {
1.6 albertel 330: $status.='<br>Error sending message to '.$_.'<br>';
331: } else {
332: $sendsomething++;
333: }
334: }
1.24 harris41 335: }
1.18 www 336:
337: my %record=&Apache::lonnet::restore('_feedback');
338: my ($temp)=keys %record;
339: unless ($temp=~/^error\:/) {
340: my %newrecord=();
341: $newrecord{'resource'}=$feedurl;
342: $newrecord{'subnumber'}=$record{'subnumber'}+1;
343: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
344: $status.='<br>Not registered<br>';
345: }
346: }
347:
1.6 albertel 348: return ($status,$sendsomething);
349: }
350:
1.13 www 351: sub adddiscuss {
1.14 www 352: my ($symb,$email,$anon)=@_;
1.13 www 353: my $status='';
1.23 www 354: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
355: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.20 www 356:
1.13 www 357: my %contrib=('message' => $email,
358: 'sendername' => $ENV{'user.name'},
1.26 www 359: 'senderdomain' => $ENV{'user.domain'},
360: 'screenname' => $ENV{'environment.screenname'},
361: 'plainname' => $ENV{'environment.firstname'}.' '.
362: $ENV{'environment.middlename'}.' '.
363: $ENV{'environment.lastname'}.' '.
364: $ENV{'enrironment.generation'});
1.14 www 365: if ($anon) {
366: $contrib{'anonymous'}='true';
367: }
1.13 www 368: if (($symb) && ($email)) {
1.14 www 369: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
1.13 www 370: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
371: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1.17 www 372: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.21 www 373: my %storenewentry=($symb => time);
374: $status.='<br>Updating discussion time: '.
375: &Apache::lonnet::put('discussiontimes',\%storenewentry,
376: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
377: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.13 www 378: }
1.17 www 379: my %record=&Apache::lonnet::restore('_discussion');
380: my ($temp)=keys %record;
381: unless ($temp=~/^error\:/) {
382: my %newrecord=();
383: $newrecord{'resource'}=$symb;
384: $newrecord{'subnumber'}=$record{'subnumber'}+1;
1.21 www 385: $status.='<br>Registering: '.
386: &Apache::lonnet::cstore(\%newrecord,'_discussion');
1.20 www 387: }
388: } else {
389: $status.='Failed.';
1.17 www 390: }
391: return $status.'<br>';
1.13 www 392: }
393:
1.33 www 394: # ----------------------------------------------------------- Preview function
395:
396: sub show_preview {
397: my $r=shift;
398: my $message=&clear_out_html($ENV{'form.comment'});
399: $message=~s/\n/\<br \/\>/g;
400: $message=&Apache::lontexconvert::msgtexconverted($message);
401: $r->print('<table border="2"><tr><td>'.
402: $message.'</td></tr></table>');
403: }
404:
405: sub generate_preview_button {
406: return(<<ENDPREVIEW);
407: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
408: <input type="hidden" name="comment" />
409: <input type="button" value="Show Preview"
410: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" />
411: </form>
412: ENDPREVIEW
413: }
1.6 albertel 414: sub handler {
415: my $r = shift;
1.8 www 416: if ($r->header_only) {
417: $r->content_type('text/html');
418: $r->send_http_header;
419: return OK;
420: }
1.15 www 421:
422: # --------------------------- Get query string for limited number of parameters
423:
1.27 stredwic 424: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.33 www 425: ['hide','unhide','postdata','preview']);
1.15 www 426:
427: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
428: # ----------------------------------------------------------------- Hide/unhide
429: $r->content_type('text/html');
430: $r->send_http_header;
431:
432: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
433:
434: my ($symb,$idx)=split(/\:\:\:/,$entry);
435: my ($map,$ind,$url)=split(/\_\_\_/,$symb);
436:
437: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
438: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
439: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
440:
441:
442: my $currenthidden=$contrib{'hidden'};
443:
444: if ($ENV{'form.hide'}) {
445: $currenthidden.='.'.$idx.'.';
446: } else {
447: $currenthidden=~s/\.$idx\.//g;
448: }
449: my %newhash=('hidden' => $currenthidden);
450:
451: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
452: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
453: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
454:
1.30 www 455: &redirect_back($r,&Apache::lonnet::clutter($url),
1.32 albertel 456: 'Changed discussion status<p>','0','0');
1.33 www 457: } elsif ($ENV{'form.preview'}) {
458: # -------------------------------------------------------- User wants a preview
459: &show_preview($r);
1.15 www 460: } else {
461: # ------------------------------------------------------------- Normal feedback
1.6 albertel 462: my $feedurl=$ENV{'form.postdata'};
463: $feedurl=~s/^http\:\/\///;
464: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
465: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1.8 www 466:
467: my $symb=&Apache::lonnet::symbread($feedurl);
1.31 www 468: unless ($symb) {
469: $symb=$ENV{'form.symb'};
470: if ($symb) {
471: my ($map,$id,$url)=split(/\_\_\_/,$symb);
472: $feedurl=&Apache::lonnet::clutter($url);
473: }
474: }
1.8 www 475: my $goahead=1;
476: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
477: unless ($symb) { $goahead=0; }
478: }
479:
480: if ($goahead) {
481: # Go ahead with feedback, no ambiguous reference
482: $r->content_type('text/html');
483: $r->send_http_header;
1.6 albertel 484:
1.8 www 485: if (
1.7 albertel 486: (
487: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
488: )
489: ||
490: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1.31 www 491: ||
492: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1.7 albertel 493: ) {
1.6 albertel 494: # --------------------------------------------------- Print login screen header
495: unless ($ENV{'form.sendit'}) {
496: my $options=&screen_header($feedurl);
497: if ($options) {
498: &mail_screen($r,$feedurl,$options);
499: } else {
500: &fail_redirect($r,$feedurl);
501: }
502: } else {
503:
504: # Get previous user input
1.9 albertel 505: my $prevattempts=&Apache::loncommon::get_previous_attempt(
1.11 albertel 506: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1.9 albertel 507: $ENV{'request.course.id'});
1.6 albertel 508:
509: # Get output from resource
510: my $usersaw=&resource_output($feedurl);
511:
512: # Filter HTML out of message (could be nasty)
513: my $message=&clear_out_html;
514:
515: # Assemble email
1.8 www 516: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
517: $usersaw);
1.6 albertel 518:
519: # Who gets this?
520: my ($typestyle,%to) = &decide_receiver($feedurl);
521:
522: # Actually send mail
523: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,%to);
1.13 www 524:
525: # Discussion? Store that.
526:
1.32 albertel 527: my $numpost=0;
1.13 www 528: if ($ENV{'form.discuss'}) {
529: $typestyle.=&adddiscuss($symb,$message);
1.32 albertel 530: $numpost++;
1.13 www 531: }
1.6 albertel 532:
1.14 www 533: if ($ENV{'form.anondiscuss'}) {
534: $typestyle.=&adddiscuss($symb,$message,1);
1.32 albertel 535: $numpost++;
1.14 www 536: }
537:
538:
1.6 albertel 539: # Receipt screen and redirect back to where came from
1.32 albertel 540: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status);
1.6 albertel 541:
542: }
1.8 www 543: } else {
1.7 albertel 544: # Unable to give feedback
1.6 albertel 545: &no_redirect_back($r,$feedurl);
1.8 www 546: }
547: } else {
548: # Ambiguous Problem Resource
549: $r->internal_redirect('/adm/ambiguous');
1.6 albertel 550: }
1.15 www 551: }
1.6 albertel 552: return OK;
1.1 www 553: }
554:
555: 1;
556: __END__
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