Annotation of loncom/interface/lonfeedback.pm, revision 1.48

1.1       www         1: # The LearningOnline Network
                      2: # Feedback
                      3: #
1.48    ! albertel    4: # $Id: lonfeedback.pm,v 1.47 2003/06/20 14:50:34 bowersj2 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>
                    154: <body bgcolor="#FFFFFF">
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>
1.2       www       159: </body>
                    160: </html>
                    161: ENDREDIR
                    162: }
1.6       albertel  163: 
                    164: sub no_redirect_back {
                    165:   my ($r,$feedurl) = @_;
                    166:   $r->print (<<ENDNOREDIR);
1.2       www       167: <head><title>Feedback not sent</title>
1.7       albertel  168: <meta http-equiv="pragma" content="no-cache"></meta>
                    169: ENDNOREDIR
                    170: 
1.8       www       171:   if ($feedurl!~/^\/adm\/feedback/) { 
1.7       albertel  172:     $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
                    173:   }
                    174:   
1.8       www       175:   $r->print (<<ENDNOREDIRTWO);
1.2       www       176: </head>
                    177: <html>
                    178: <body bgcolor="#FFFFFF">
1.8       www       179: <img align=right src=/adm/lonIcons/lonlogos.gif>
                    180: <b>Sorry, no feedback possible on this resource  ...</b>
1.2       www       181: </body>
                    182: </html>
1.8       www       183: ENDNOREDIRTWO
1.2       www       184: }
1.6       albertel  185: 
                    186: sub screen_header {
                    187:   my ($feedurl) = @_;
                    188:   my $options='';
1.35      www       189:   if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
1.6       albertel  190:     $options= 
                    191:       '<p><input type=checkbox name=author> Feedback to resource author';
                    192:   }
1.36      www       193:   if (&feedback_available(1)) {
1.6       albertel  194:     $options.=
1.8       www       195:     '<br><input type=checkbox name=question> Question about resource content';
1.6       albertel  196:   }
1.36      www       197:   if (&feedback_available(0,1)) {
1.6       albertel  198:     $options.=
                    199:       '<br><input type=checkbox name=course> '.
                    200: 	'Question/Comment/Feedback about course content';
                    201:   }
1.36      www       202:   if (&feedback_available(0,0,1)) {
1.6       albertel  203:     $options.=
                    204:       '<br><input type=checkbox name=policy> '.
                    205: 	'Question/Comment/Feedback about course policy';
1.10      www       206:   }
1.20      www       207: 
1.10      www       208:   if ($ENV{'request.course.id'}) {
1.23      www       209:       if (&Apache::lonnet::allowed('pch',
                    210:         $ENV{'request.course.id'}.
                    211:         ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.10      www       212:     $options.='<br><input type=checkbox name=discuss> '.
                    213: 	'<b>Contribution to course discussion of resource</b>';
1.14      www       214:     $options.='<br><input type=checkbox name=anondiscuss> '.
                    215: 	'<b>Anonymous contribution to course discussion of resource</b>'.
                    216:         ' (name only visible to course faculty)';
1.20      www       217:       }
1.14      www       218:   }
1.6       albertel  219:   return $options;
                    220: }
                    221: 
                    222: sub resource_output {
                    223:   my ($feedurl) = @_;
1.46      albertel  224:   my $usersaw=&Apache::lonnet::ssi_body($feedurl);
1.6       albertel  225:   $usersaw=~s/\<body[^\>]*\>//gi;
                    226:   $usersaw=~s/\<\/body\>//gi;
                    227:   $usersaw=~s/\<html\>//gi;
                    228:   $usersaw=~s/\<\/html\>//gi;
                    229:   $usersaw=~s/\<head\>//gi;
                    230:   $usersaw=~s/\<\/head\>//gi;
                    231:   $usersaw=~s/action\s*\=/would_be_action\=/gi;
                    232:   return $usersaw;
                    233: }
                    234: 
                    235: sub clear_out_html {
1.39      www       236:   my ($message,$override)=@_;
1.37      albertel  237:   my $cid=$ENV{'request.course.id'};
1.39      www       238:   if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
                    239:       ($override)) {
1.37      albertel  240:       # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 
                    241:       # <BLOCKQUOTE> <DIV .*> <DIV> <IMG>
                    242:       my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
                    243: 		BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1);
                    244: 
                    245:       $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
1.48    ! albertel  246: 	  {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\&lt;$1"}/ge;
1.37      albertel  247:       $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
1.48    ! albertel  248: 	  {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\&gt;"}/ge;
1.37      albertel  249:   } else {
                    250:       $message=~s/\<\/*m\s*\>//g;
                    251:       $message=~s/\</\&lt\;/g;
                    252:       $message=~s/\>/\&gt\;/g;
                    253:   }
1.6       albertel  254:   return $message;
                    255: }
                    256: 
                    257: sub assemble_email {
1.40      albertel  258:   my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
1.6       albertel  259:   my $email=<<"ENDEMAIL";
                    260: Refers to <a href="$feedurl">$feedurl</a>
                    261: 
                    262: $message
                    263: ENDEMAIL
                    264:     my $citations=<<"ENDCITE";
                    265: <h2>Previous attempts of student (if applicable)</h2>
                    266: $prevattempts
                    267: <p><hr>
                    268: <h2>Original screen output (if applicable)</h2>
                    269: $usersaw
1.40      albertel  270: <h2>Correct Answer(s) (if applicable)</h2>
                    271: $useranswer
1.6       albertel  272: ENDCITE
                    273:   return ($email,$citations);
                    274: }
                    275: 
1.35      www       276: sub secapply {
                    277:     my $rec=shift;
1.36      www       278:     my $defaultflag=shift;
                    279:     $rec=~s/\s+//g;
                    280:     $rec=~s/\@/\:/g;
                    281:     my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
                    282:     if ($sections) {
                    283: 	foreach (split(/\;/,$sections)) {
                    284:             if (($_ eq $ENV{'request.course.sec'}) ||
                    285:                 ($defaultflag && ($_ eq '*'))) {
                    286:                 return $adr; 
                    287:             }
                    288:         }
                    289:     } else {
                    290:        return $rec;
                    291:     }
                    292:     return '';
1.35      www       293: }
                    294: 
1.6       albertel  295: sub decide_receiver {
1.36      www       296:   my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
1.6       albertel  297:   my $typestyle='';
                    298:   my %to=();
1.36      www       299:   if ($ENV{'form.author'}||$author) {
1.8       www       300:     $typestyle.='Submitting as Author Feedback<br>';
1.6       albertel  301:     $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
                    302:     $to{$2.':'.$1}=1;
                    303:   }
1.36      www       304:   if ($ENV{'form.question'}||$question) {
1.8       www       305:     $typestyle.='Submitting as Question<br>';
1.24      harris41  306:     foreach (split(/\,/,
                    307: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
                    308: 	     ) {
1.36      www       309: 	my $rec=&secapply($_,$defaultflag);
                    310:         if ($rec) { $to{$rec}=1; }
1.24      harris41  311:     } 
1.6       albertel  312:   }
1.36      www       313:   if ($ENV{'form.course'}||$course) {
1.8       www       314:     $typestyle.='Submitting as Comment<br>';
1.24      harris41  315:     foreach (split(/\,/,
                    316: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
                    317: 	     ) {
1.36      www       318: 	my $rec=&secapply($_,$defaultflag);
                    319:         if ($rec) { $to{$rec}=1; }
1.24      harris41  320:     } 
1.6       albertel  321:   }
1.36      www       322:   if ($ENV{'form.policy'}||$policy) {
1.8       www       323:     $typestyle.='Submitting as Policy Feedback<br>';
1.24      harris41  324:     foreach (split(/\,/,
                    325: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
                    326: 	     ) {
1.36      www       327: 	my $rec=&secapply($_,$defaultflag);
                    328:         if ($rec) { $to{$rec}=1; }
1.24      harris41  329:     } 
1.6       albertel  330:   }
1.36      www       331:   if ((scalar(%to) eq '0') && (!$defaultflag)) {
                    332:      ($typestyle,%to)=
                    333: 	 &decide_receiver($feedurl,$author,$question,$course,$policy,1);
                    334:   }
1.6       albertel  335:   return ($typestyle,%to);
1.36      www       336: }
                    337: 
                    338: sub feedback_available {
                    339:     my ($question,$course,$policy)=@_;
                    340:     my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
                    341:     return scalar(%to);
1.6       albertel  342: }
                    343: 
                    344: sub send_msg {
1.43      www       345:   my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
1.6       albertel  346:   my $status='';
                    347:   my $sendsomething=0;
1.24      harris41  348:   foreach (keys %to) {
1.6       albertel  349:     if ($_) {
1.22      www       350:       my $declutter=&Apache::lonnet::declutter($feedurl);
1.8       www       351:       unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
1.43      www       352:                'Feedback ['.$declutter.']',$email,$citations,$feedurl,
                    353:                 $attachmenturl)=~/ok/) {
1.6       albertel  354: 	$status.='<br>Error sending message to '.$_.'<br>';
                    355:       } else {
                    356: 	$sendsomething++;
                    357:       }
                    358:     }
1.24      harris41  359:   }
1.18      www       360: 
                    361:     my %record=&Apache::lonnet::restore('_feedback');
                    362:     my ($temp)=keys %record;
                    363:     unless ($temp=~/^error\:/) {
                    364:        my %newrecord=();
                    365:        $newrecord{'resource'}=$feedurl;
                    366:        $newrecord{'subnumber'}=$record{'subnumber'}+1;
                    367:        unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
                    368: 	   $status.='<br>Not registered<br>';
                    369:        }
                    370:     }
                    371:        
1.6       albertel  372:   return ($status,$sendsomething);
                    373: }
                    374: 
1.13      www       375: sub adddiscuss {
1.42      www       376:     my ($symb,$email,$anon,$attachmenturl)=@_;
1.13      www       377:     my $status='';
1.23      www       378:     if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
                    379:         ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.20      www       380: 
1.13      www       381:     my %contrib=('message'      => $email,
                    382:                  'sendername'   => $ENV{'user.name'},
1.26      www       383:                  'senderdomain' => $ENV{'user.domain'},
                    384:                  'screenname'   => $ENV{'environment.screenname'},
                    385:                  'plainname'    => $ENV{'environment.firstname'}.' '.
                    386: 		                   $ENV{'environment.middlename'}.' '.
                    387:                                    $ENV{'environment.lastname'}.' '.
1.42      www       388:                                    $ENV{'enrironment.generation'},
1.43      www       389:                  'attachmenturl'=> $attachmenturl);
1.14      www       390:     if ($anon) {
                    391: 	$contrib{'anonymous'}='true';
                    392:     }
1.13      www       393:     if (($symb) && ($email)) {
1.14      www       394:        $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
1.13      www       395:         &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
                    396:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1.17      www       397: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.21      www       398:         my %storenewentry=($symb => time);
                    399:         $status.='<br>Updating discussion time: '.
                    400:         &Apache::lonnet::put('discussiontimes',\%storenewentry,
                    401:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    402: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.13      www       403:     }
1.17      www       404:     my %record=&Apache::lonnet::restore('_discussion');
                    405:     my ($temp)=keys %record;
                    406:     unless ($temp=~/^error\:/) {
                    407:        my %newrecord=();
                    408:        $newrecord{'resource'}=$symb;
                    409:        $newrecord{'subnumber'}=$record{'subnumber'}+1;
1.21      www       410:        $status.='<br>Registering: '.
                    411:                &Apache::lonnet::cstore(\%newrecord,'_discussion');
1.20      www       412:     }
                    413:     } else {
                    414: 	$status.='Failed.';
1.17      www       415:     }
                    416:     return $status.'<br>';   
1.13      www       417: }
                    418: 
1.33      www       419: # ----------------------------------------------------------- Preview function
                    420: 
                    421: sub show_preview {
                    422:     my $r=shift;
                    423:     my $message=&clear_out_html($ENV{'form.comment'});
                    424:     $message=~s/\n/\<br \/\>/g;
                    425:     $message=&Apache::lontexconvert::msgtexconverted($message);
                    426:     $r->print('<table border="2"><tr><td>'.
                    427:        $message.'</td></tr></table>');
                    428: }
                    429: 
                    430: sub generate_preview_button {
                    431:     return(<<ENDPREVIEW);
                    432: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
                    433: <input type="hidden" name="comment" />
                    434: <input type="button" value="Show Preview"
                    435: onClick="this.form.comment.value=document.mailform.comment.value;this.form.submit();" />
                    436: </form>
                    437: ENDPREVIEW
                    438: }
1.6       albertel  439: sub handler {
                    440:   my $r = shift;
1.8       www       441:   if ($r->header_only) {
                    442:      $r->content_type('text/html');
                    443:      $r->send_http_header;
                    444:      return OK;
                    445:   }
1.15      www       446: 
                    447: # --------------------------- Get query string for limited number of parameters
                    448: 
1.27      stredwic  449:    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.38      www       450:                              ['hide','unhide','deldisc','postdata','preview']);
1.15      www       451: 
                    452:   if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
                    453: # ----------------------------------------------------------------- Hide/unhide
                    454:     $r->content_type('text/html');
                    455:     $r->send_http_header;
                    456: 
                    457:     my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
                    458: 
                    459:     my ($symb,$idx)=split(/\:\:\:/,$entry);
                    460:     my ($map,$ind,$url)=split(/\_\_\_/,$symb);
                    461: 
                    462:     my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                    463:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    464: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    465: 
                    466:         
                    467:     my $currenthidden=$contrib{'hidden'};
                    468:     
                    469:     if ($ENV{'form.hide'}) {
                    470: 	$currenthidden.='.'.$idx.'.';
                    471:     } else {
                    472:         $currenthidden=~s/\.$idx\.//g;
                    473:     }
                    474:     my %newhash=('hidden' => $currenthidden);
1.38      www       475: 
                    476:     &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
                    477:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    478: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    479: 
                    480:     &redirect_back($r,&Apache::lonnet::clutter($url),
                    481:        'Changed discussion status<p>','0','0');
                    482:   } elsif ($ENV{'form.deldisc'}) {
                    483: # --------------------------------------------------------------- Hide for good
                    484:     $r->content_type('text/html');
                    485:     $r->send_http_header;
                    486: 
                    487:     my $entry=$ENV{'form.deldisc'};
                    488: 
                    489:     my ($symb,$idx)=split(/\:\:\:/,$entry);
                    490:     my ($map,$ind,$url)=split(/\_\_\_/,$symb);
                    491: 
                    492:     my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                    493:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    494: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    495: 
                    496:         
                    497:     my $currentdeleted=$contrib{'deleted'};
                    498:     
                    499:     $currentdeleted.='.'.$idx.'.';
                    500: 
                    501:     my %newhash=('deleted' => $currentdeleted);
1.15      www       502: 
                    503:     &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
                    504:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    505: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    506: 
1.30      www       507:     &redirect_back($r,&Apache::lonnet::clutter($url),
1.32      albertel  508:        'Changed discussion status<p>','0','0');
1.33      www       509:   } elsif ($ENV{'form.preview'}) {
                    510: # -------------------------------------------------------- User wants a preview
                    511:       &show_preview($r);
1.15      www       512:   } else {
                    513: # ------------------------------------------------------------- Normal feedback
1.6       albertel  514:   my $feedurl=$ENV{'form.postdata'};
                    515:   $feedurl=~s/^http\:\/\///;
                    516:   $feedurl=~s/^$ENV{'SERVER_NAME'}//;
                    517:   $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1.8       www       518: 
                    519:   my $symb=&Apache::lonnet::symbread($feedurl);
1.31      www       520:   unless ($symb) {
                    521:       $symb=$ENV{'form.symb'};
                    522:       if ($symb) {
                    523: 	  my ($map,$id,$url)=split(/\_\_\_/,$symb);
                    524:           $feedurl=&Apache::lonnet::clutter($url);
                    525:       }
                    526:   }
1.8       www       527:   my $goahead=1;
                    528:   if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
                    529:       unless ($symb) { $goahead=0; }
                    530:   }
                    531: 
                    532:   if ($goahead) {
                    533: # Go ahead with feedback, no ambiguous reference
                    534:     $r->content_type('text/html');
                    535:     $r->send_http_header;
1.6       albertel  536:   
1.8       www       537:     if (
1.7       albertel  538:       (
                    539:        ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
                    540:       ) 
                    541:       || 
                    542:       ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1.31      www       543:       ||
                    544:       ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1.7       albertel  545:      ) {
1.6       albertel  546: # --------------------------------------------------- Print login screen header
                    547:     unless ($ENV{'form.sendit'}) {
                    548:       my $options=&screen_header($feedurl);
                    549:       if ($options) {
                    550: 	&mail_screen($r,$feedurl,$options);
                    551:       } else {
                    552: 	&fail_redirect($r,$feedurl);
                    553:       }
                    554:     } else {
                    555:       
                    556: # Get previous user input
1.9       albertel  557:       my $prevattempts=&Apache::loncommon::get_previous_attempt(
1.11      albertel  558:             $symb,$ENV{'user.name'},$ENV{'user.domain'},
1.9       albertel  559:             $ENV{'request.course.id'});
1.6       albertel  560: 
                    561: # Get output from resource
                    562:       my $usersaw=&resource_output($feedurl);
                    563: 
1.40      albertel  564: # Get resource answer
                    565:       my $useranswer=&Apache::loncommon::get_student_answers(
                    566:                        $symb,$ENV{'user.name'},$ENV{'user.domain'},
                    567: 		       $ENV{'request.course.id'});
1.42      www       568: # Get attachments, if any, and not too large
                    569:       my $attachmenturl='';
                    570:       if ($ENV{'form.attachment.filename'}) {
                    571: 	  unless (length($ENV{'form.attachment'})>131072) {
1.43      www       572: 	      $attachmenturl=&Apache::lonnet::userfileupload('attachment');
1.42      www       573: 	  }
                    574:       }
1.6       albertel  575: # Filter HTML out of message (could be nasty)
1.39      www       576:       my $message=&clear_out_html($ENV{'form.comment'});
1.6       albertel  577: 
                    578: # Assemble email
1.8       www       579:       my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
1.40      albertel  580:           $usersaw,$useranswer);
                    581:  
1.6       albertel  582: # Who gets this?
                    583:       my ($typestyle,%to) = &decide_receiver($feedurl);
                    584: 
                    585: # Actually send mail
1.43      www       586:       my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
                    587:           $attachmenturl,%to);
1.13      www       588: 
                    589: # Discussion? Store that.
                    590: 
1.32      albertel  591:       my $numpost=0;
1.13      www       592:       if ($ENV{'form.discuss'}) {
1.42      www       593: 	  $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl);
1.32      albertel  594: 	  $numpost++;
1.13      www       595:       }
1.6       albertel  596: 
1.14      www       597:       if ($ENV{'form.anondiscuss'}) {
1.42      www       598: 	  $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl);
1.32      albertel  599: 	  $numpost++;
1.14      www       600:       }
                    601: 
                    602: 
1.6       albertel  603: # Receipt screen and redirect back to where came from
1.32      albertel  604:       &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status);
1.6       albertel  605: 
                    606:     }
1.8       www       607:    } else {
1.7       albertel  608: # Unable to give feedback
1.6       albertel  609:     &no_redirect_back($r,$feedurl);
1.8       www       610:    }
                    611:   } else {
                    612: # Ambiguous Problem Resource
                    613:     $r->internal_redirect('/adm/ambiguous');
1.6       albertel  614:   }
1.15      www       615: }
1.6       albertel  616:   return OK;
1.1       www       617: } 
                    618: 
                    619: 1;
                    620: __END__

FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>