Annotation of loncom/interface/lonfeedback.pm, revision 1.56
1.1 www 1: # The LearningOnline Network
2: # Feedback
3: #
1.56 ! www 4: # $Id: lonfeedback.pm,v 1.55 2003/09/15 13:38:19 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();
1.54 www 54:
55: sub list_discussion {
1.55 www 56: my ($discussiononly,$symb)=@_;
57: unless ($ENV{'request.course.id'}) { return ''; }
58: my $crs='/'.$ENV{'request.course.id'};
59: if ($ENV{'request.course.sec'}) {
60: $crs.='_'.$ENV{'request.course.sec'};
61: }
62: $crs=~s/\_/\//g;
1.54 www 63: unless ($symb) {
64: $symb=&Apache::lonnet::symbread();
65: }
66: unless ($symb) { return ''; }
67: my $seeid=&Apache::lonnet::allowed('rin',$crs);
68: my $viewgrades=&Apache::lonnet::allowed('vgr',$crs);
69: my $discussion='';
70: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
71: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
72: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
73: if ($contrib{'version'}) {
74: unless ($discussiononly) {
75: $discussion.=
76: '<address><hr />';
77: }
78: my $idx;
79: for ($idx=1;$idx<=$contrib{'version'};$idx++) {
80: my $hidden=($contrib{'hidden'}=~/\.$idx\./);
81: my $deleted=($contrib{'deleted'}=~/\.$idx\./);
82: unless ((($hidden) && (!$seeid)) || ($deleted)) {
83: my $message=$contrib{$idx.':message'};
84: $message=~s/\n/\<br \/\>/g;
85: $message=&Apache::lontexconvert::msgtexconverted($message);
86: if ($contrib{$idx.':attachmenturl'}) {
87: my ($fname,$ft)
88: =($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/);
89: $message.='<p>Attachment: <a href="'.
90: &Apache::lonnet::tokenwrapper(
91: $contrib{$idx.':attachmenturl'}).
92: '"><tt>'.$fname.'.'.$ft.'</tt></a>';
93: }
94: if ($message) {
95: if ($hidden) {
96: $message='<font color="#888888">'.$message.'</font>';
97: }
98: my $screenname=&Apache::loncommon::screenname(
99: $contrib{$idx.':sendername'},
100: $contrib{$idx.':senderdomain'});
101: my $plainname=&Apache::loncommon::nickname(
102: $contrib{$idx.':sendername'},
103: $contrib{$idx.':senderdomain'});
104:
105: my $sender='Anonymous';
106: if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
107: $sender=&Apache::loncommon::aboutmewrapper(
108: $plainname,
109: $contrib{$idx.':sendername'},
110: $contrib{$idx.':senderdomain'}).' ('.
111: $contrib{$idx.':sendername'}.' at '.
112: $contrib{$idx.':senderdomain'}.')';
113: if ($contrib{$idx.':anonymous'}) {
114: $sender.=' [anonymous] '.
115: $screenname;
116: }
117: if ($seeid) {
118: if ($hidden) {
119: $sender.=' <a href="/adm/feedback?unhide='.
120: $symb.':::'.$idx.'">Make Visible</a>';
121: } else {
122: $sender.=' <a href="/adm/feedback?hide='.
123: $symb.':::'.$idx.'">Hide</a>';
124: }
125: $sender.=' <a href="/adm/feedback?deldisc='.
126: $symb.':::'.$idx.'">Delete</a>';
127: }
128: } else {
129: if ($screenname) {
130: $sender='<i>'.$screenname.'</i>';
131: }
132: }
133: my $vgrlink;
134: if ($viewgrades) {
135: $vgrlink=&Apache::loncommon::submlink('Submissions',
136: $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb);
137: }
138: $discussion.='<p><b>'.$sender.'</b> '.$vgrlink.' ('.
139: localtime($contrib{$idx.':timestamp'}).
140: '):<blockquote>'.$message.
141: '</blockquote></p>';
142: }
143: }
144: }
145: unless ($discussiononly) {
146: $discussion.='</address>';
147: }
148: }
149: if ($discussiononly) {
150: $discussion.=(<<ENDDISCUSS);
151: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
152: <input type="submit" name="discuss" value="Post Discussion" />
153: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
154: <input type="hidden" name="symb" value="$symb" />
155: <input type="hidden" name="sendit" value="true" />
156: <br />
157: <font size="1">Note: in anonymous discussion, your name is visible only to
158: course faculty</font><br />
159: <textarea name=comment cols=60 rows=10 wrap=hard></textarea>
160: <p>
161: Attachment (128 KB max size): <input type="file" name="attachment" />
162: </p>
163: </form>
164: ENDDISCUSS
165: $discussion.=&generate_preview_button();
166: }
167: return $discussion;
168: }
1.1 www 169:
1.6 albertel 170: sub mail_screen {
171: my ($r,$feedurl,$options) = @_;
1.45 www 172: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
173: '','onLoad="window.focus();"');
1.51 albertel 174: my $title=&Apache::lonnet::gettitle($feedurl);
175: if (!$title) { $title = $feedurl; }
1.47 bowersj2 176: my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
1.6 albertel 177: $r->print(<<ENDDOCUMENT);
1.1 www 178: <html>
179: <head>
180: <title>The LearningOnline Network with CAPA</title>
1.7 albertel 181: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 182: <script>
183: function gosubmit() {
184: var rec=0;
1.12 albertel 185: if (typeof(document.mailform.elements.author)!="undefined") {
1.5 www 186: if (document.mailform.elements.author.checked) {
187: rec=1;
188: }
189: }
1.12 albertel 190: if (typeof(document.mailform.elements.question)!="undefined") {
1.5 www 191: if (document.mailform.elements.question.checked) {
192: rec=1;
193: }
194: }
1.12 albertel 195: if (typeof(document.mailform.elements.course)!="undefined") {
1.5 www 196: if (document.mailform.elements.course.checked) {
197: rec=1;
198: }
199: }
1.12 albertel 200: if (typeof(document.mailform.elements.policy)!="undefined") {
1.5 www 201: if (document.mailform.elements.policy.checked) {
202: rec=1;
203: }
204: }
1.12 albertel 205: if (typeof(document.mailform.elements.discuss)!="undefined") {
1.10 www 206: if (document.mailform.elements.discuss.checked) {
207: rec=1;
208: }
209: }
1.14 www 210: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
211: if (document.mailform.elements.anondiscuss.checked) {
212: rec=1;
213: }
214: }
1.5 www 215:
216: if (rec) {
217: document.mailform.submit();
218: } else {
219: alert('Please check a feedback type.');
220: }
221: }
222: </script>
1.1 www 223: </head>
1.29 www 224: $bodytag
1.51 albertel 225: <h2><tt>$title</tt></h2>
1.43 www 226: <form action="/adm/feedback" method="post" name="mailform"
227: enctype="multipart/form-data">
1.2 www 228: <input type=hidden name=postdata value="$feedurl">
1.5 www 229: Please check at least one of the following feedback types:
1.2 www 230: $options<hr>
231: My question/comment/feedback:<p>
1.47 bowersj2 232: $latexHelp
1.16 www 233: <textarea name=comment cols=60 rows=10 wrap=hard>
1.2 www 234: </textarea><p>
1.42 www 235: Attachment (128 KB max size): <input type="file" name="attachment" />
236: </p>
237: <p>
238: <input type="hidden" name="sendit" value="1" />
239: <input type=button value="Send Feedback" onClick='gosubmit();' />
240: </p>
1.2 www 241: </form>
1.1 www 242: ENDDOCUMENT
1.33 www 243: $r->print(&generate_preview_button().'</body></html>');
1.6 albertel 244: }
245:
246: sub fail_redirect {
247: my ($r,$feedurl) = @_;
248: $r->print (<<ENDFAILREDIR);
1.5 www 249: <head><title>Feedback not sent</title>
1.7 albertel 250: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 251: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
252: </head>
253: <html>
254: <body bgcolor="#FFFFFF">
1.8 www 255: <img align=right src=/adm/lonIcons/lonlogos.gif>
256: <b>Sorry, no recipients ...</b>
1.5 www 257: </body>
258: </html>
259: ENDFAILREDIR
260: }
1.4 www 261:
1.6 albertel 262: sub redirect_back {
1.32 albertel 263: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_;
1.6 albertel 264: $r->print (<<ENDREDIR);
1.3 www 265: <head>
266: <title>Feedback sent</title>
1.7 albertel 267: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 268: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
1.2 www 269: </head>
270: <html>
1.49 www 271: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
1.8 www 272: <img align=right src=/adm/lonIcons/lonlogos.gif>
1.5 www 273: $typestyle
1.32 albertel 274: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
1.3 www 275: <font color=red>$status</font>
1.49 www 276: <form name="reldt" action="$feedurl" target="loncapaclient">
277: </form>
1.2 www 278: </body>
279: </html>
280: ENDREDIR
281: }
1.6 albertel 282:
283: sub no_redirect_back {
284: my ($r,$feedurl) = @_;
285: $r->print (<<ENDNOREDIR);
1.2 www 286: <head><title>Feedback not sent</title>
1.7 albertel 287: <meta http-equiv="pragma" content="no-cache"></meta>
288: ENDNOREDIR
289:
1.8 www 290: if ($feedurl!~/^\/adm\/feedback/) {
1.7 albertel 291: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
292: }
293:
1.8 www 294: $r->print (<<ENDNOREDIRTWO);
1.2 www 295: </head>
296: <html>
1.49 www 297: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
1.8 www 298: <img align=right src=/adm/lonIcons/lonlogos.gif>
299: <b>Sorry, no feedback possible on this resource ...</b>
1.2 www 300: </body>
301: </html>
1.8 www 302: ENDNOREDIRTWO
1.2 www 303: }
1.6 albertel 304:
305: sub screen_header {
306: my ($feedurl) = @_;
1.49 www 307: my $msgoptions='';
308: my $discussoptions='';
1.35 www 309: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
1.49 www 310: $msgoptions=
1.6 albertel 311: '<p><input type=checkbox name=author> Feedback to resource author';
312: }
1.36 www 313: if (&feedback_available(1)) {
1.49 www 314: $msgoptions.=
1.8 www 315: '<br><input type=checkbox name=question> Question about resource content';
1.6 albertel 316: }
1.36 www 317: if (&feedback_available(0,1)) {
1.49 www 318: $msgoptions.=
1.6 albertel 319: '<br><input type=checkbox name=course> '.
320: 'Question/Comment/Feedback about course content';
321: }
1.36 www 322: if (&feedback_available(0,0,1)) {
1.49 www 323: $msgoptions.=
1.6 albertel 324: '<br><input type=checkbox name=policy> '.
325: 'Question/Comment/Feedback about course policy';
1.10 www 326: }
1.20 www 327:
1.10 www 328: if ($ENV{'request.course.id'}) {
1.23 www 329: if (&Apache::lonnet::allowed('pch',
330: $ENV{'request.course.id'}.
331: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.49 www 332: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;"> '.
333: 'Contribution to course discussion of resource';
334: $discussoptions.='<br><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;"> '.
335: 'Anonymous contribution to course discussion of resource'.
336: ' <i>(name only visible to course faculty)</i>';
1.20 www 337: }
1.14 www 338: }
1.49 www 339: if ($msgoptions) { $msgoptions='<h2>Sending Messages</h2>'.$msgoptions; }
340: if ($discussoptions) {
341: $discussoptions='<h2>Discussion Contributions</h2>'.$discussoptions; }
342: return $msgoptions.$discussoptions;
1.6 albertel 343: }
344:
345: sub resource_output {
346: my ($feedurl) = @_;
1.46 albertel 347: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
1.6 albertel 348: $usersaw=~s/\<body[^\>]*\>//gi;
349: $usersaw=~s/\<\/body\>//gi;
350: $usersaw=~s/\<html\>//gi;
351: $usersaw=~s/\<\/html\>//gi;
352: $usersaw=~s/\<head\>//gi;
353: $usersaw=~s/\<\/head\>//gi;
354: $usersaw=~s/action\s*\=/would_be_action\=/gi;
355: return $usersaw;
356: }
357:
358: sub clear_out_html {
1.39 www 359: my ($message,$override)=@_;
1.37 albertel 360: my $cid=$ENV{'request.course.id'};
1.39 www 361: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
362: ($override)) {
1.37 albertel 363: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
364: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG>
365: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
366: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1);
367:
368: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
1.48 albertel 369: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
1.37 albertel 370: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
1.48 albertel 371: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
1.37 albertel 372: } else {
373: $message=~s/\<\/*m\s*\>//g;
374: $message=~s/\</\<\;/g;
375: $message=~s/\>/\>\;/g;
376: }
1.6 albertel 377: return $message;
378: }
379:
380: sub assemble_email {
1.40 albertel 381: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
1.6 albertel 382: my $email=<<"ENDEMAIL";
383: Refers to <a href="$feedurl">$feedurl</a>
384:
385: $message
386: ENDEMAIL
387: my $citations=<<"ENDCITE";
388: <h2>Previous attempts of student (if applicable)</h2>
389: $prevattempts
390: <p><hr>
391: <h2>Original screen output (if applicable)</h2>
392: $usersaw
1.40 albertel 393: <h2>Correct Answer(s) (if applicable)</h2>
394: $useranswer
1.6 albertel 395: ENDCITE
396: return ($email,$citations);
397: }
398:
1.35 www 399: sub secapply {
400: my $rec=shift;
1.36 www 401: my $defaultflag=shift;
402: $rec=~s/\s+//g;
403: $rec=~s/\@/\:/g;
404: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
405: if ($sections) {
406: foreach (split(/\;/,$sections)) {
407: if (($_ eq $ENV{'request.course.sec'}) ||
408: ($defaultflag && ($_ eq '*'))) {
409: return $adr;
410: }
411: }
412: } else {
413: return $rec;
414: }
415: return '';
1.35 www 416: }
417:
1.6 albertel 418: sub decide_receiver {
1.36 www 419: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
1.6 albertel 420: my $typestyle='';
421: my %to=();
1.36 www 422: if ($ENV{'form.author'}||$author) {
1.8 www 423: $typestyle.='Submitting as Author Feedback<br>';
1.6 albertel 424: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
425: $to{$2.':'.$1}=1;
426: }
1.36 www 427: if ($ENV{'form.question'}||$question) {
1.8 www 428: $typestyle.='Submitting as Question<br>';
1.24 harris41 429: foreach (split(/\,/,
430: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
431: ) {
1.36 www 432: my $rec=&secapply($_,$defaultflag);
433: if ($rec) { $to{$rec}=1; }
1.24 harris41 434: }
1.6 albertel 435: }
1.36 www 436: if ($ENV{'form.course'}||$course) {
1.8 www 437: $typestyle.='Submitting as Comment<br>';
1.24 harris41 438: foreach (split(/\,/,
439: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
440: ) {
1.36 www 441: my $rec=&secapply($_,$defaultflag);
442: if ($rec) { $to{$rec}=1; }
1.24 harris41 443: }
1.6 albertel 444: }
1.36 www 445: if ($ENV{'form.policy'}||$policy) {
1.8 www 446: $typestyle.='Submitting as Policy Feedback<br>';
1.24 harris41 447: foreach (split(/\,/,
448: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
449: ) {
1.36 www 450: my $rec=&secapply($_,$defaultflag);
451: if ($rec) { $to{$rec}=1; }
1.24 harris41 452: }
1.6 albertel 453: }
1.36 www 454: if ((scalar(%to) eq '0') && (!$defaultflag)) {
455: ($typestyle,%to)=
456: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
457: }
1.6 albertel 458: return ($typestyle,%to);
1.36 www 459: }
460:
461: sub feedback_available {
462: my ($question,$course,$policy)=@_;
463: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
464: return scalar(%to);
1.6 albertel 465: }
466:
467: sub send_msg {
1.43 www 468: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
1.6 albertel 469: my $status='';
470: my $sendsomething=0;
1.24 harris41 471: foreach (keys %to) {
1.6 albertel 472: if ($_) {
1.22 www 473: my $declutter=&Apache::lonnet::declutter($feedurl);
1.8 www 474: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
1.43 www 475: 'Feedback ['.$declutter.']',$email,$citations,$feedurl,
476: $attachmenturl)=~/ok/) {
1.6 albertel 477: $status.='<br>Error sending message to '.$_.'<br>';
478: } else {
479: $sendsomething++;
480: }
481: }
1.24 harris41 482: }
1.18 www 483:
484: my %record=&Apache::lonnet::restore('_feedback');
485: my ($temp)=keys %record;
486: unless ($temp=~/^error\:/) {
487: my %newrecord=();
488: $newrecord{'resource'}=$feedurl;
489: $newrecord{'subnumber'}=$record{'subnumber'}+1;
490: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
491: $status.='<br>Not registered<br>';
492: }
493: }
494:
1.6 albertel 495: return ($status,$sendsomething);
496: }
497:
1.13 www 498: sub adddiscuss {
1.42 www 499: my ($symb,$email,$anon,$attachmenturl)=@_;
1.13 www 500: my $status='';
1.23 www 501: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
502: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.20 www 503:
1.13 www 504: my %contrib=('message' => $email,
505: 'sendername' => $ENV{'user.name'},
1.26 www 506: 'senderdomain' => $ENV{'user.domain'},
507: 'screenname' => $ENV{'environment.screenname'},
508: 'plainname' => $ENV{'environment.firstname'}.' '.
509: $ENV{'environment.middlename'}.' '.
510: $ENV{'environment.lastname'}.' '.
1.42 www 511: $ENV{'enrironment.generation'},
1.43 www 512: 'attachmenturl'=> $attachmenturl);
1.14 www 513: if ($anon) {
514: $contrib{'anonymous'}='true';
515: }
1.13 www 516: if (($symb) && ($email)) {
1.14 www 517: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
1.13 www 518: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
519: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1.17 www 520: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.21 www 521: my %storenewentry=($symb => time);
522: $status.='<br>Updating discussion time: '.
523: &Apache::lonnet::put('discussiontimes',\%storenewentry,
524: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
525: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.13 www 526: }
1.17 www 527: my %record=&Apache::lonnet::restore('_discussion');
528: my ($temp)=keys %record;
529: unless ($temp=~/^error\:/) {
530: my %newrecord=();
531: $newrecord{'resource'}=$symb;
532: $newrecord{'subnumber'}=$record{'subnumber'}+1;
1.21 www 533: $status.='<br>Registering: '.
534: &Apache::lonnet::cstore(\%newrecord,'_discussion');
1.20 www 535: }
536: } else {
537: $status.='Failed.';
1.17 www 538: }
539: return $status.'<br>';
1.13 www 540: }
541:
1.33 www 542: # ----------------------------------------------------------- Preview function
543:
544: sub show_preview {
545: my $r=shift;
546: my $message=&clear_out_html($ENV{'form.comment'});
547: $message=~s/\n/\<br \/\>/g;
548: $message=&Apache::lontexconvert::msgtexconverted($message);
549: $r->print('<table border="2"><tr><td>'.
550: $message.'</td></tr></table>');
551: }
552:
553: sub generate_preview_button {
554: return(<<ENDPREVIEW);
555: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
556: <input type="hidden" name="comment" />
557: <input type="button" value="Show Preview"
558: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" />
559: </form>
560: ENDPREVIEW
561: }
1.6 albertel 562: sub handler {
563: my $r = shift;
1.8 www 564: if ($r->header_only) {
565: $r->content_type('text/html');
566: $r->send_http_header;
567: return OK;
568: }
1.15 www 569:
570: # --------------------------- Get query string for limited number of parameters
571:
1.27 stredwic 572: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.38 www 573: ['hide','unhide','deldisc','postdata','preview']);
1.15 www 574:
575: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
576: # ----------------------------------------------------------------- Hide/unhide
577: $r->content_type('text/html');
578: $r->send_http_header;
579:
580: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
581:
582: my ($symb,$idx)=split(/\:\:\:/,$entry);
1.52 www 583: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1.15 www 584:
585: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
586: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
587: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
588:
589:
590: my $currenthidden=$contrib{'hidden'};
591:
592: if ($ENV{'form.hide'}) {
593: $currenthidden.='.'.$idx.'.';
594: } else {
595: $currenthidden=~s/\.$idx\.//g;
596: }
597: my %newhash=('hidden' => $currenthidden);
1.38 www 598:
599: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
600: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
601: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
602:
603: &redirect_back($r,&Apache::lonnet::clutter($url),
604: 'Changed discussion status<p>','0','0');
605: } elsif ($ENV{'form.deldisc'}) {
606: # --------------------------------------------------------------- Hide for good
607: $r->content_type('text/html');
608: $r->send_http_header;
609:
610: my $entry=$ENV{'form.deldisc'};
611:
612: my ($symb,$idx)=split(/\:\:\:/,$entry);
1.52 www 613: my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1.38 www 614:
615: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
616: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
617: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
618:
619:
620: my $currentdeleted=$contrib{'deleted'};
621:
622: $currentdeleted.='.'.$idx.'.';
623:
624: my %newhash=('deleted' => $currentdeleted);
1.15 www 625:
626: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
627: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
628: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
629:
1.30 www 630: &redirect_back($r,&Apache::lonnet::clutter($url),
1.32 albertel 631: 'Changed discussion status<p>','0','0');
1.33 www 632: } elsif ($ENV{'form.preview'}) {
633: # -------------------------------------------------------- User wants a preview
634: &show_preview($r);
1.15 www 635: } else {
636: # ------------------------------------------------------------- Normal feedback
1.6 albertel 637: my $feedurl=$ENV{'form.postdata'};
638: $feedurl=~s/^http\:\/\///;
639: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
640: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1.8 www 641:
642: my $symb=&Apache::lonnet::symbread($feedurl);
1.31 www 643: unless ($symb) {
644: $symb=$ENV{'form.symb'};
645: if ($symb) {
1.52 www 646: my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1.31 www 647: $feedurl=&Apache::lonnet::clutter($url);
648: }
649: }
1.8 www 650: my $goahead=1;
651: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
652: unless ($symb) { $goahead=0; }
653: }
654:
655: if ($goahead) {
656: # Go ahead with feedback, no ambiguous reference
657: $r->content_type('text/html');
658: $r->send_http_header;
1.6 albertel 659:
1.8 www 660: if (
1.7 albertel 661: (
662: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
663: )
664: ||
665: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1.31 www 666: ||
667: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1.7 albertel 668: ) {
1.6 albertel 669: # --------------------------------------------------- Print login screen header
670: unless ($ENV{'form.sendit'}) {
671: my $options=&screen_header($feedurl);
672: if ($options) {
673: &mail_screen($r,$feedurl,$options);
674: } else {
675: &fail_redirect($r,$feedurl);
676: }
677: } else {
678:
679: # Get previous user input
1.9 albertel 680: my $prevattempts=&Apache::loncommon::get_previous_attempt(
1.11 albertel 681: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1.9 albertel 682: $ENV{'request.course.id'});
1.6 albertel 683:
684: # Get output from resource
685: my $usersaw=&resource_output($feedurl);
686:
1.50 albertel 687: # Get resource answer (need to allow student to view grades for this to work)
688: &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
1.40 albertel 689: my $useranswer=&Apache::loncommon::get_student_answers(
690: $symb,$ENV{'user.name'},$ENV{'user.domain'},
691: $ENV{'request.course.id'});
1.50 albertel 692: &Apache::lonnet::delenv('allowed.vgr');
1.42 www 693: # Get attachments, if any, and not too large
694: my $attachmenturl='';
695: if ($ENV{'form.attachment.filename'}) {
696: unless (length($ENV{'form.attachment'})>131072) {
1.43 www 697: $attachmenturl=&Apache::lonnet::userfileupload('attachment');
1.42 www 698: }
699: }
1.6 albertel 700: # Filter HTML out of message (could be nasty)
1.39 www 701: my $message=&clear_out_html($ENV{'form.comment'});
1.6 albertel 702:
703: # Assemble email
1.8 www 704: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
1.40 albertel 705: $usersaw,$useranswer);
706:
1.6 albertel 707: # Who gets this?
708: my ($typestyle,%to) = &decide_receiver($feedurl);
709:
710: # Actually send mail
1.43 www 711: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
712: $attachmenturl,%to);
1.13 www 713:
714: # Discussion? Store that.
715:
1.32 albertel 716: my $numpost=0;
1.13 www 717: if ($ENV{'form.discuss'}) {
1.42 www 718: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl);
1.32 albertel 719: $numpost++;
1.13 www 720: }
1.6 albertel 721:
1.14 www 722: if ($ENV{'form.anondiscuss'}) {
1.42 www 723: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl);
1.32 albertel 724: $numpost++;
1.14 www 725: }
726:
727:
1.6 albertel 728: # Receipt screen and redirect back to where came from
1.32 albertel 729: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status);
1.6 albertel 730:
731: }
1.8 www 732: } else {
1.7 albertel 733: # Unable to give feedback
1.6 albertel 734: &no_redirect_back($r,$feedurl);
1.8 www 735: }
736: } else {
737: # Ambiguous Problem Resource
1.56 ! www 738:
1.53 albertel 739: &Apache::lonnet::cleanenv();
1.56 ! www 740:
1.53 albertel 741: $r->internal_redirect('/adm/ambiguous');
1.6 albertel 742: }
1.15 www 743: }
1.6 albertel 744: return OK;
1.1 www 745: }
746:
747: 1;
748: __END__
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