Annotation of loncom/interface/lonfeedback.pm, revision 1.50
1.1 www 1: # The LearningOnline Network
2: # Feedback
3: #
1.50 ! albertel 4: # $Id: lonfeedback.pm,v 1.49 2003/07/05 10:07:11 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) = @_;
1.45 www 57: my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
58: '','onLoad="window.focus();"');
1.47 bowersj2 59: my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
1.6 albertel 60: $r->print(<<ENDDOCUMENT);
1.1 www 61: <html>
62: <head>
63: <title>The LearningOnline Network with CAPA</title>
1.7 albertel 64: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 65: <script>
66: function gosubmit() {
67: var rec=0;
1.12 albertel 68: if (typeof(document.mailform.elements.author)!="undefined") {
1.5 www 69: if (document.mailform.elements.author.checked) {
70: rec=1;
71: }
72: }
1.12 albertel 73: if (typeof(document.mailform.elements.question)!="undefined") {
1.5 www 74: if (document.mailform.elements.question.checked) {
75: rec=1;
76: }
77: }
1.12 albertel 78: if (typeof(document.mailform.elements.course)!="undefined") {
1.5 www 79: if (document.mailform.elements.course.checked) {
80: rec=1;
81: }
82: }
1.12 albertel 83: if (typeof(document.mailform.elements.policy)!="undefined") {
1.5 www 84: if (document.mailform.elements.policy.checked) {
85: rec=1;
86: }
87: }
1.12 albertel 88: if (typeof(document.mailform.elements.discuss)!="undefined") {
1.10 www 89: if (document.mailform.elements.discuss.checked) {
90: rec=1;
91: }
92: }
1.14 www 93: if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
94: if (document.mailform.elements.anondiscuss.checked) {
95: rec=1;
96: }
97: }
1.5 www 98:
99: if (rec) {
100: document.mailform.submit();
101: } else {
102: alert('Please check a feedback type.');
103: }
104: }
105: </script>
1.1 www 106: </head>
1.29 www 107: $bodytag
1.2 www 108: <h2><tt>$feedurl</tt></h2>
1.43 www 109: <form action="/adm/feedback" method="post" name="mailform"
110: enctype="multipart/form-data">
1.2 www 111: <input type=hidden name=postdata value="$feedurl">
1.5 www 112: Please check at least one of the following feedback types:
1.2 www 113: $options<hr>
114: My question/comment/feedback:<p>
1.47 bowersj2 115: $latexHelp
1.16 www 116: <textarea name=comment cols=60 rows=10 wrap=hard>
1.2 www 117: </textarea><p>
1.42 www 118: Attachment (128 KB max size): <input type="file" name="attachment" />
119: </p>
120: <p>
121: <input type="hidden" name="sendit" value="1" />
122: <input type=button value="Send Feedback" onClick='gosubmit();' />
123: </p>
1.2 www 124: </form>
1.1 www 125: ENDDOCUMENT
1.33 www 126: $r->print(&generate_preview_button().'</body></html>');
1.6 albertel 127: }
128:
129: sub fail_redirect {
130: my ($r,$feedurl) = @_;
131: $r->print (<<ENDFAILREDIR);
1.5 www 132: <head><title>Feedback not sent</title>
1.7 albertel 133: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 134: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
135: </head>
136: <html>
137: <body bgcolor="#FFFFFF">
1.8 www 138: <img align=right src=/adm/lonIcons/lonlogos.gif>
139: <b>Sorry, no recipients ...</b>
1.5 www 140: </body>
141: </html>
142: ENDFAILREDIR
143: }
1.4 www 144:
1.6 albertel 145: sub redirect_back {
1.32 albertel 146: my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status) = @_;
1.6 albertel 147: $r->print (<<ENDREDIR);
1.3 www 148: <head>
149: <title>Feedback sent</title>
1.7 albertel 150: <meta http-equiv="pragma" content="no-cache"></meta>
1.5 www 151: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl">
1.2 www 152: </head>
153: <html>
1.49 www 154: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
1.8 www 155: <img align=right src=/adm/lonIcons/lonlogos.gif>
1.5 www 156: $typestyle
1.32 albertel 157: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
1.3 www 158: <font color=red>$status</font>
1.49 www 159: <form name="reldt" action="$feedurl" target="loncapaclient">
160: </form>
1.2 www 161: </body>
162: </html>
163: ENDREDIR
164: }
1.6 albertel 165:
166: sub no_redirect_back {
167: my ($r,$feedurl) = @_;
168: $r->print (<<ENDNOREDIR);
1.2 www 169: <head><title>Feedback not sent</title>
1.7 albertel 170: <meta http-equiv="pragma" content="no-cache"></meta>
171: ENDNOREDIR
172:
1.8 www 173: if ($feedurl!~/^\/adm\/feedback/) {
1.7 albertel 174: $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
175: }
176:
1.8 www 177: $r->print (<<ENDNOREDIRTWO);
1.2 www 178: </head>
179: <html>
1.49 www 180: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
1.8 www 181: <img align=right src=/adm/lonIcons/lonlogos.gif>
182: <b>Sorry, no feedback possible on this resource ...</b>
1.2 www 183: </body>
184: </html>
1.8 www 185: ENDNOREDIRTWO
1.2 www 186: }
1.6 albertel 187:
188: sub screen_header {
189: my ($feedurl) = @_;
1.49 www 190: my $msgoptions='';
191: my $discussoptions='';
1.35 www 192: if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
1.49 www 193: $msgoptions=
1.6 albertel 194: '<p><input type=checkbox name=author> Feedback to resource author';
195: }
1.36 www 196: if (&feedback_available(1)) {
1.49 www 197: $msgoptions.=
1.8 www 198: '<br><input type=checkbox name=question> Question about resource content';
1.6 albertel 199: }
1.36 www 200: if (&feedback_available(0,1)) {
1.49 www 201: $msgoptions.=
1.6 albertel 202: '<br><input type=checkbox name=course> '.
203: 'Question/Comment/Feedback about course content';
204: }
1.36 www 205: if (&feedback_available(0,0,1)) {
1.49 www 206: $msgoptions.=
1.6 albertel 207: '<br><input type=checkbox name=policy> '.
208: 'Question/Comment/Feedback about course policy';
1.10 www 209: }
1.20 www 210:
1.10 www 211: if ($ENV{'request.course.id'}) {
1.23 www 212: if (&Apache::lonnet::allowed('pch',
213: $ENV{'request.course.id'}.
214: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.49 www 215: $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;"> '.
216: 'Contribution to course discussion of resource';
217: $discussoptions.='<br><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;"> '.
218: 'Anonymous contribution to course discussion of resource'.
219: ' <i>(name only visible to course faculty)</i>';
1.20 www 220: }
1.14 www 221: }
1.49 www 222: if ($msgoptions) { $msgoptions='<h2>Sending Messages</h2>'.$msgoptions; }
223: if ($discussoptions) {
224: $discussoptions='<h2>Discussion Contributions</h2>'.$discussoptions; }
225: return $msgoptions.$discussoptions;
1.6 albertel 226: }
227:
228: sub resource_output {
229: my ($feedurl) = @_;
1.46 albertel 230: my $usersaw=&Apache::lonnet::ssi_body($feedurl);
1.6 albertel 231: $usersaw=~s/\<body[^\>]*\>//gi;
232: $usersaw=~s/\<\/body\>//gi;
233: $usersaw=~s/\<html\>//gi;
234: $usersaw=~s/\<\/html\>//gi;
235: $usersaw=~s/\<head\>//gi;
236: $usersaw=~s/\<\/head\>//gi;
237: $usersaw=~s/action\s*\=/would_be_action\=/gi;
238: return $usersaw;
239: }
240:
241: sub clear_out_html {
1.39 www 242: my ($message,$override)=@_;
1.37 albertel 243: my $cid=$ENV{'request.course.id'};
1.39 www 244: if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
245: ($override)) {
1.37 albertel 246: # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
247: # <BLOCKQUOTE> <DIV .*> <DIV> <IMG>
248: my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
249: BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1);
250:
251: $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
1.48 albertel 252: {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
1.37 albertel 253: $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
1.48 albertel 254: {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
1.37 albertel 255: } else {
256: $message=~s/\<\/*m\s*\>//g;
257: $message=~s/\</\<\;/g;
258: $message=~s/\>/\>\;/g;
259: }
1.6 albertel 260: return $message;
261: }
262:
263: sub assemble_email {
1.40 albertel 264: my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
1.6 albertel 265: my $email=<<"ENDEMAIL";
266: Refers to <a href="$feedurl">$feedurl</a>
267:
268: $message
269: ENDEMAIL
270: my $citations=<<"ENDCITE";
271: <h2>Previous attempts of student (if applicable)</h2>
272: $prevattempts
273: <p><hr>
274: <h2>Original screen output (if applicable)</h2>
275: $usersaw
1.40 albertel 276: <h2>Correct Answer(s) (if applicable)</h2>
277: $useranswer
1.6 albertel 278: ENDCITE
279: return ($email,$citations);
280: }
281:
1.35 www 282: sub secapply {
283: my $rec=shift;
1.36 www 284: my $defaultflag=shift;
285: $rec=~s/\s+//g;
286: $rec=~s/\@/\:/g;
287: my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
288: if ($sections) {
289: foreach (split(/\;/,$sections)) {
290: if (($_ eq $ENV{'request.course.sec'}) ||
291: ($defaultflag && ($_ eq '*'))) {
292: return $adr;
293: }
294: }
295: } else {
296: return $rec;
297: }
298: return '';
1.35 www 299: }
300:
1.6 albertel 301: sub decide_receiver {
1.36 www 302: my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
1.6 albertel 303: my $typestyle='';
304: my %to=();
1.36 www 305: if ($ENV{'form.author'}||$author) {
1.8 www 306: $typestyle.='Submitting as Author Feedback<br>';
1.6 albertel 307: $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
308: $to{$2.':'.$1}=1;
309: }
1.36 www 310: if ($ENV{'form.question'}||$question) {
1.8 www 311: $typestyle.='Submitting as Question<br>';
1.24 harris41 312: foreach (split(/\,/,
313: $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
314: ) {
1.36 www 315: my $rec=&secapply($_,$defaultflag);
316: if ($rec) { $to{$rec}=1; }
1.24 harris41 317: }
1.6 albertel 318: }
1.36 www 319: if ($ENV{'form.course'}||$course) {
1.8 www 320: $typestyle.='Submitting as Comment<br>';
1.24 harris41 321: foreach (split(/\,/,
322: $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
323: ) {
1.36 www 324: my $rec=&secapply($_,$defaultflag);
325: if ($rec) { $to{$rec}=1; }
1.24 harris41 326: }
1.6 albertel 327: }
1.36 www 328: if ($ENV{'form.policy'}||$policy) {
1.8 www 329: $typestyle.='Submitting as Policy Feedback<br>';
1.24 harris41 330: foreach (split(/\,/,
331: $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
332: ) {
1.36 www 333: my $rec=&secapply($_,$defaultflag);
334: if ($rec) { $to{$rec}=1; }
1.24 harris41 335: }
1.6 albertel 336: }
1.36 www 337: if ((scalar(%to) eq '0') && (!$defaultflag)) {
338: ($typestyle,%to)=
339: &decide_receiver($feedurl,$author,$question,$course,$policy,1);
340: }
1.6 albertel 341: return ($typestyle,%to);
1.36 www 342: }
343:
344: sub feedback_available {
345: my ($question,$course,$policy)=@_;
346: my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
347: return scalar(%to);
1.6 albertel 348: }
349:
350: sub send_msg {
1.43 www 351: my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
1.6 albertel 352: my $status='';
353: my $sendsomething=0;
1.24 harris41 354: foreach (keys %to) {
1.6 albertel 355: if ($_) {
1.22 www 356: my $declutter=&Apache::lonnet::declutter($feedurl);
1.8 www 357: unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
1.43 www 358: 'Feedback ['.$declutter.']',$email,$citations,$feedurl,
359: $attachmenturl)=~/ok/) {
1.6 albertel 360: $status.='<br>Error sending message to '.$_.'<br>';
361: } else {
362: $sendsomething++;
363: }
364: }
1.24 harris41 365: }
1.18 www 366:
367: my %record=&Apache::lonnet::restore('_feedback');
368: my ($temp)=keys %record;
369: unless ($temp=~/^error\:/) {
370: my %newrecord=();
371: $newrecord{'resource'}=$feedurl;
372: $newrecord{'subnumber'}=$record{'subnumber'}+1;
373: unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
374: $status.='<br>Not registered<br>';
375: }
376: }
377:
1.6 albertel 378: return ($status,$sendsomething);
379: }
380:
1.13 www 381: sub adddiscuss {
1.42 www 382: my ($symb,$email,$anon,$attachmenturl)=@_;
1.13 www 383: my $status='';
1.23 www 384: if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
385: ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.20 www 386:
1.13 www 387: my %contrib=('message' => $email,
388: 'sendername' => $ENV{'user.name'},
1.26 www 389: 'senderdomain' => $ENV{'user.domain'},
390: 'screenname' => $ENV{'environment.screenname'},
391: 'plainname' => $ENV{'environment.firstname'}.' '.
392: $ENV{'environment.middlename'}.' '.
393: $ENV{'environment.lastname'}.' '.
1.42 www 394: $ENV{'enrironment.generation'},
1.43 www 395: 'attachmenturl'=> $attachmenturl);
1.14 www 396: if ($anon) {
397: $contrib{'anonymous'}='true';
398: }
1.13 www 399: if (($symb) && ($email)) {
1.14 www 400: $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
1.13 www 401: &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
402: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1.17 www 403: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.21 www 404: my %storenewentry=($symb => time);
405: $status.='<br>Updating discussion time: '.
406: &Apache::lonnet::put('discussiontimes',\%storenewentry,
407: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
408: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.13 www 409: }
1.17 www 410: my %record=&Apache::lonnet::restore('_discussion');
411: my ($temp)=keys %record;
412: unless ($temp=~/^error\:/) {
413: my %newrecord=();
414: $newrecord{'resource'}=$symb;
415: $newrecord{'subnumber'}=$record{'subnumber'}+1;
1.21 www 416: $status.='<br>Registering: '.
417: &Apache::lonnet::cstore(\%newrecord,'_discussion');
1.20 www 418: }
419: } else {
420: $status.='Failed.';
1.17 www 421: }
422: return $status.'<br>';
1.13 www 423: }
424:
1.33 www 425: # ----------------------------------------------------------- Preview function
426:
427: sub show_preview {
428: my $r=shift;
429: my $message=&clear_out_html($ENV{'form.comment'});
430: $message=~s/\n/\<br \/\>/g;
431: $message=&Apache::lontexconvert::msgtexconverted($message);
432: $r->print('<table border="2"><tr><td>'.
433: $message.'</td></tr></table>');
434: }
435:
436: sub generate_preview_button {
437: return(<<ENDPREVIEW);
438: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
439: <input type="hidden" name="comment" />
440: <input type="button" value="Show Preview"
441: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" />
442: </form>
443: ENDPREVIEW
444: }
1.6 albertel 445: sub handler {
446: my $r = shift;
1.8 www 447: if ($r->header_only) {
448: $r->content_type('text/html');
449: $r->send_http_header;
450: return OK;
451: }
1.15 www 452:
453: # --------------------------- Get query string for limited number of parameters
454:
1.27 stredwic 455: &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.38 www 456: ['hide','unhide','deldisc','postdata','preview']);
1.15 www 457:
458: if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
459: # ----------------------------------------------------------------- Hide/unhide
460: $r->content_type('text/html');
461: $r->send_http_header;
462:
463: my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
464:
465: my ($symb,$idx)=split(/\:\:\:/,$entry);
466: my ($map,$ind,$url)=split(/\_\_\_/,$symb);
467:
468: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
469: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
470: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
471:
472:
473: my $currenthidden=$contrib{'hidden'};
474:
475: if ($ENV{'form.hide'}) {
476: $currenthidden.='.'.$idx.'.';
477: } else {
478: $currenthidden=~s/\.$idx\.//g;
479: }
480: my %newhash=('hidden' => $currenthidden);
1.38 www 481:
482: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
483: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
484: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
485:
486: &redirect_back($r,&Apache::lonnet::clutter($url),
487: 'Changed discussion status<p>','0','0');
488: } elsif ($ENV{'form.deldisc'}) {
489: # --------------------------------------------------------------- Hide for good
490: $r->content_type('text/html');
491: $r->send_http_header;
492:
493: my $entry=$ENV{'form.deldisc'};
494:
495: my ($symb,$idx)=split(/\:\:\:/,$entry);
496: my ($map,$ind,$url)=split(/\_\_\_/,$symb);
497:
498: my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
499: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
500: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
501:
502:
503: my $currentdeleted=$contrib{'deleted'};
504:
505: $currentdeleted.='.'.$idx.'.';
506:
507: my %newhash=('deleted' => $currentdeleted);
1.15 www 508:
509: &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
510: $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
511: $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
512:
1.30 www 513: &redirect_back($r,&Apache::lonnet::clutter($url),
1.32 albertel 514: 'Changed discussion status<p>','0','0');
1.33 www 515: } elsif ($ENV{'form.preview'}) {
516: # -------------------------------------------------------- User wants a preview
517: &show_preview($r);
1.15 www 518: } else {
519: # ------------------------------------------------------------- Normal feedback
1.6 albertel 520: my $feedurl=$ENV{'form.postdata'};
521: $feedurl=~s/^http\:\/\///;
522: $feedurl=~s/^$ENV{'SERVER_NAME'}//;
523: $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1.8 www 524:
525: my $symb=&Apache::lonnet::symbread($feedurl);
1.31 www 526: unless ($symb) {
527: $symb=$ENV{'form.symb'};
528: if ($symb) {
529: my ($map,$id,$url)=split(/\_\_\_/,$symb);
530: $feedurl=&Apache::lonnet::clutter($url);
531: }
532: }
1.8 www 533: my $goahead=1;
534: if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
535: unless ($symb) { $goahead=0; }
536: }
537:
538: if ($goahead) {
539: # Go ahead with feedback, no ambiguous reference
540: $r->content_type('text/html');
541: $r->send_http_header;
1.6 albertel 542:
1.8 www 543: if (
1.7 albertel 544: (
545: ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
546: )
547: ||
548: ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1.31 www 549: ||
550: ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1.7 albertel 551: ) {
1.6 albertel 552: # --------------------------------------------------- Print login screen header
553: unless ($ENV{'form.sendit'}) {
554: my $options=&screen_header($feedurl);
555: if ($options) {
556: &mail_screen($r,$feedurl,$options);
557: } else {
558: &fail_redirect($r,$feedurl);
559: }
560: } else {
561:
562: # Get previous user input
1.9 albertel 563: my $prevattempts=&Apache::loncommon::get_previous_attempt(
1.11 albertel 564: $symb,$ENV{'user.name'},$ENV{'user.domain'},
1.9 albertel 565: $ENV{'request.course.id'});
1.6 albertel 566:
567: # Get output from resource
568: my $usersaw=&resource_output($feedurl);
569:
1.50 ! albertel 570: # Get resource answer (need to allow student to view grades for this to work)
! 571: &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
1.40 albertel 572: my $useranswer=&Apache::loncommon::get_student_answers(
573: $symb,$ENV{'user.name'},$ENV{'user.domain'},
574: $ENV{'request.course.id'});
1.50 ! albertel 575: &Apache::lonnet::delenv('allowed.vgr');
1.42 www 576: # Get attachments, if any, and not too large
577: my $attachmenturl='';
578: if ($ENV{'form.attachment.filename'}) {
579: unless (length($ENV{'form.attachment'})>131072) {
1.43 www 580: $attachmenturl=&Apache::lonnet::userfileupload('attachment');
1.42 www 581: }
582: }
1.6 albertel 583: # Filter HTML out of message (could be nasty)
1.39 www 584: my $message=&clear_out_html($ENV{'form.comment'});
1.6 albertel 585:
586: # Assemble email
1.8 www 587: my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
1.40 albertel 588: $usersaw,$useranswer);
589:
1.6 albertel 590: # Who gets this?
591: my ($typestyle,%to) = &decide_receiver($feedurl);
592:
593: # Actually send mail
1.43 www 594: my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
595: $attachmenturl,%to);
1.13 www 596:
597: # Discussion? Store that.
598:
1.32 albertel 599: my $numpost=0;
1.13 www 600: if ($ENV{'form.discuss'}) {
1.42 www 601: $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl);
1.32 albertel 602: $numpost++;
1.13 www 603: }
1.6 albertel 604:
1.14 www 605: if ($ENV{'form.anondiscuss'}) {
1.42 www 606: $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl);
1.32 albertel 607: $numpost++;
1.14 www 608: }
609:
610:
1.6 albertel 611: # Receipt screen and redirect back to where came from
1.32 albertel 612: &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status);
1.6 albertel 613:
614: }
1.8 www 615: } else {
1.7 albertel 616: # Unable to give feedback
1.6 albertel 617: &no_redirect_back($r,$feedurl);
1.8 www 618: }
619: } else {
620: # Ambiguous Problem Resource
621: $r->internal_redirect('/adm/ambiguous');
1.6 albertel 622: }
1.15 www 623: }
1.6 albertel 624: return OK;
1.1 www 625: }
626:
627: 1;
628: __END__
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