Annotation of loncom/interface/lonfeedback.pm, revision 1.83

1.1       www         1: # The LearningOnline Network
                      2: # Feedback
                      3: #
1.83    ! raeburn     4: # $Id: lonfeedback.pm,v 1.82 2004/05/07 12:03:53 albertel 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: #
1.77      www        28: ###
1.7       albertel   29: 
1.1       www        30: package Apache::lonfeedback;
                     31: 
                     32: use strict;
                     33: use Apache::Constants qw(:common);
1.3       www        34: use Apache::lonmsg();
1.9       albertel   35: use Apache::loncommon();
1.33      www        36: use Apache::lontexconvert();
1.62      www        37: use Apache::lonlocal;
1.54      www        38: 
                     39: sub list_discussion {
1.81      raeburn    40:     my ($mode,$status,$symb)=@_;
1.77      www        41: #    &Apache::lonnet::logthis("status is $status");
                     42:     if (!($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
                     43: 	  || $status eq 'OPEN')) {
1.75      albertel   44: 	return '';
                     45:     }
1.57      www        46:     my $discussiononly=0;
                     47:     if ($mode eq 'board') { $discussiononly=1; }
1.55      www        48:     unless ($ENV{'request.course.id'}) { return ''; }
                     49:     my $crs='/'.$ENV{'request.course.id'};
                     50:     if ($ENV{'request.course.sec'}) {
                     51: 	$crs.='_'.$ENV{'request.course.sec'};
                     52:     }                 
                     53:     $crs=~s/\_/\//g;
1.54      www        54:     unless ($symb) {
                     55: 	$symb=&Apache::lonnet::symbread();
                     56:     }
                     57:     unless ($symb) { return ''; }
1.78      raeburn    58: 
1.80      raeburn    59: # backward compatibility (bulletin boards used to be 'wrapped')
                     60:     my $ressymb=$symb;
                     61:     if ($mode eq 'board') {
                     62:         unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
                     63:             $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
                     64:         }
                     65:     }
                     66: 
                     67: # Get discussion display settings for this discussion
                     68:     my $lastkey = $ressymb.'_lastread';
                     69:     my $showkey = $ressymb.'_showonlyunread';
                     70:     my $visitkey = $ressymb.'_visit';
                     71:     my %dischash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$lastkey,$showkey,$visitkey],$ENV{'user.domain'},$ENV{'user.name'});
                     72:     my $showonlyunread = 0;
1.79      raeburn    73:     my $prevread = 0;
1.81      raeburn    74:     my $previous = 0;
1.80      raeburn    75:     my $visit = 0;
                     76:     my $newpostsflag = 0;
                     77: 
1.81      raeburn    78: # Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
                     79:     &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']);
                     80:     $previous = $ENV{'form.previous'};
1.80      raeburn    81:     if ($previous > 0) {
                     82:         $prevread = $previous;
                     83:     } elsif (defined($dischash{$lastkey})) {
                     84:         $prevread = $dischash{$lastkey};
                     85:     }
1.79      raeburn    86: 
1.83    ! raeburn    87: # Get discussion display default setting for user
        !            88:     my %userenv = &Apache::lonnet::get('environment',['discdisplay'],$ENV{'user.domain'},$ENV{'user.name'});
        !            89:     my $discdisplay=$userenv{'discdisplay'};
        !            90:     if ($discdisplay eq 'unread') {
        !            91:         $showonlyunread = 1;
        !            92:     }
        !            93: 
        !            94: # Override user's default if user specified display setting for this discussion 
1.80      raeburn    95:     if (defined($dischash{$showkey})) {
                     96:         $showonlyunread = $dischash{$showkey};
                     97:     }
                     98: 
                     99:     if (defined($dischash{$visitkey})) {
                    100:         $visit = $dischash{$visitkey};
1.78      raeburn   101:     }
1.80      raeburn   102:     $visit ++;
1.78      raeburn   103: 
1.54      www       104:     my $seeid=&Apache::lonnet::allowed('rin',$crs);
1.77      www       105:     my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
                    106: 	&& ($symb=~/\.(problem|exam|quiz|assess|survey|form)$/));
1.68      www       107:     my @discussionitems=();
1.73      albertel  108:     my %contrib=&Apache::lonnet::restore($ressymb,$ENV{'request.course.id'},
1.54      www       109: 			  $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    110: 			  $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.67      www       111:     my $visible=0;
1.68      www       112:     my @depth=();
                    113:     my @original=();
                    114:     my @index=();
                    115:     my @replies=();
                    116:     my %alldiscussion=();
1.80      raeburn   117:     my %notshown = ();
1.68      www       118:     my $maxdepth=0;
                    119: 
1.69      www       120:     my $target='';
                    121:     unless ($ENV{'browser.interface'} eq 'textual' ||
                    122: 	    $ENV{'environment.remote'} eq 'off' ) {
                    123: 	$target='target="LONcom"';
                    124:     }
1.79      raeburn   125:     
                    126:     my $now = time;
1.80      raeburn   127:     my %discinfo = ();
                    128:     $discinfo{$visitkey} = $visit;
                    129:     $discinfo{$lastkey} = $now;
                    130: 
                    131:     &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
1.79      raeburn   132: 
1.54      www       133:     if ($contrib{'version'}) {
1.64      www       134: 	for (my $id=1;$id<=$contrib{'version'};$id++) {
                    135: 	    my $idx=$id;
1.80      raeburn   136:             my $posttime = $contrib{$idx.':timestamp'};
                    137:             if ($prevread > 0 && $prevread <= $posttime) {
                    138:                 $newpostsflag = 1;
                    139:             }
1.54      www       140: 	    my $hidden=($contrib{'hidden'}=~/\.$idx\./);
                    141: 	    my $deleted=($contrib{'deleted'}=~/\.$idx\./);
1.68      www       142: 	    my $origindex='0.';
1.69      www       143: 	    if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) {
1.68      www       144: # this is a follow-up message
                    145: 		$original[$idx]=$original[$contrib{$idx.':replyto'}];
                    146: 		$depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1;
                    147: 		$origindex=$index[$contrib{$idx.':replyto'}];
                    148: 		if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; }
                    149: 	    } else {
                    150: # this is an original message
                    151: 		$original[$idx]=0;
                    152: 		$depth[$idx]=0;
                    153: 	    }
                    154: 	    if ($replies[$depth[$idx]]) {
                    155: 		$replies[$depth[$idx]]++;
                    156: 	    } else {
                    157: 		$replies[$depth[$idx]]=1;
                    158: 	    }
1.54      www       159: 	    unless ((($hidden) && (!$seeid)) || ($deleted)) {
1.67      www       160: 		$visible++;
1.54      www       161: 		my $message=$contrib{$idx.':message'};
                    162: 		$message=~s/\n/\<br \/\>/g;
                    163: 		$message=&Apache::lontexconvert::msgtexconverted($message);
1.78      raeburn   164:                 my $subject=$contrib{$idx.':subject'};
                    165:                 if (defined($subject)) {
                    166:                     $subject=~s/\n/\<br \/\>/g;
                    167:                     $subject=&Apache::lontexconvert::msgtexconverted($subject);
                    168:                 }
1.54      www       169: 		if ($contrib{$idx.':attachmenturl'}) {
1.82      albertel  170: 		    my ($fname)
                    171:                         =($contrib{$idx.':attachmenturl'}=~m|/([^/]+)$|);
                    172: 		    &Apache::lonnet::allowuploaded('/adm/feedback',
                    173: 					   $contrib{$idx.':attachmenturl'});
                    174: 		    $message.='<p>'.&mt('Attachment').
                    175: 			': <a href="'.$contrib{$idx.':attachmenturl'}.'"><tt>'.
                    176: 			$fname.'</tt></a></p>';
1.54      www       177: 		}
                    178: 		if ($message) {
                    179: 		    if ($hidden) {
                    180: 			$message='<font color="#888888">'.$message.'</font>';
                    181: 		    }
                    182: 		    my $screenname=&Apache::loncommon::screenname(
                    183: 					    $contrib{$idx.':sendername'},
                    184: 					    $contrib{$idx.':senderdomain'});
                    185: 		    my $plainname=&Apache::loncommon::nickname(
                    186: 					    $contrib{$idx.':sendername'},
                    187: 					    $contrib{$idx.':senderdomain'});
                    188: 		    
1.62      www       189: 		    my $sender=&mt('Anonymous');
1.54      www       190: 		    if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
                    191: 			$sender=&Apache::loncommon::aboutmewrapper(
                    192: 					 $plainname,
                    193: 					 $contrib{$idx.':sendername'},
                    194: 					 $contrib{$idx.':senderdomain'}).' ('.
                    195: 					 $contrib{$idx.':sendername'}.' at '.
                    196: 					 $contrib{$idx.':senderdomain'}.')';
                    197: 			if ($contrib{$idx.':anonymous'}) {
1.62      www       198: 			    $sender.=' ['.&mt('anonymous').'] '.
1.54      www       199: 				$screenname;
                    200: 			}
                    201: 			if ($seeid) {
                    202: 			    if ($hidden) {
                    203: 				$sender.=' <a href="/adm/feedback?unhide='.
1.80      raeburn   204: 				    $ressymb.':::'.$idx;
                    205:                                 if ($newpostsflag) {
                    206:                                     $sender .= '&previous='.$prevread;
                    207:                                 }
                    208:                                 $sender .= '">'.&mt('Make Visible').'</a>';
1.54      www       209: 			    } else {
                    210: 				$sender.=' <a href="/adm/feedback?hide='.
1.80      raeburn   211: 				    $ressymb.':::'.$idx;
                    212:                                 if ($newpostsflag) {
                    213:                                     $sender .= '&previous='.$prevread;
                    214:                                 }
                    215:                                 $sender .= '">'.&mt('Hide').'</a>';
1.54      www       216: 			    }                     
                    217: 			    $sender.=' <a href="/adm/feedback?deldisc='.
1.80      raeburn   218: 				$ressymb.':::'.$idx;
                    219:                                 if ($newpostsflag) {
                    220:                                     $sender .= '&previous='.$prevread;
                    221:                                 }
                    222:                                 $sender .= '">'.&mt('Delete').'</a>';
1.64      www       223: 			}
1.54      www       224: 		    } else {
                    225: 			if ($screenname) {
                    226: 			    $sender='<i>'.$screenname.'</i>';
                    227: 			}
1.77      www       228: 		    }
                    229: 		    if (&Apache::lonnet::allowed('pch',
                    230: 						 $ENV{'request.course.id'}.
                    231: 						 ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
                    232: 			$sender.=' <a href="/adm/feedback?replydisc='.
1.80      raeburn   233: 			    $ressymb.':::'.$idx;
                    234:                         if ($newpostsflag) {
                    235:                             $sender .= '&previous='.$prevread;
                    236:                         }
                    237:                         $sender .= '" '.$target.'>'.&mt('Reply').'</a>';
1.54      www       238: 		    }
                    239: 		    my $vgrlink;
                    240: 		    if ($viewgrades) {
                    241: 			$vgrlink=&Apache::loncommon::submlink('Submissions',
                    242:             $contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb);
                    243: 		    }
1.68      www       244: #figure out at what position this needs to print
                    245: 		    my $thisindex=$idx;
1.69      www       246: 		    if ($ENV{'environment.threadeddiscussion'}) {
1.68      www       247: 			$thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2);	
                    248: 		    }
                    249: 		    $alldiscussion{$thisindex}=$idx;
                    250: 		    $index[$idx]=$thisindex;
1.79      raeburn   251:                     my $spansize = 2;
1.80      raeburn   252:                     if ($showonlyunread && $prevread > $posttime) {
                    253:                         $notshown{$idx} = 1;
1.78      raeburn   254:                     } else {
1.80      raeburn   255:                         $discussionitems[$idx]='<p><table border="0" width="100%"><tr>';
                    256:                         if ($prevread > 0 && $prevread <= $posttime) {
                    257:                             $discussionitems[$idx] .= '<td align="left" bgcolor="#FFFFFF"><font color="#FF0000">NEW</font></td>';
                    258:                         }
                    259:                         $discussionitems[$idx] .= '<td align ="left">&nbsp;&nbsp;'.
                    260:                             '<b>'.$subject.'</b>&nbsp;&nbsp;'.
                    261:                             $sender.'</b> '.$vgrlink.' ('.
                    262:                             localtime($posttime).')</td></tr>'.
                    263:                             '</table><blockquote>'.$message.'</blockquote></p>';
1.78      raeburn   264:                     }
                    265:                 }
                    266:             }
1.54      www       267: 	}
1.64      www       268:     }
1.80      raeburn   269: 
1.67      www       270:     my $discussion='';
                    271:     if ($visible) {
1.80      raeburn   272: # Print the discusssion
1.67      www       273: 	$discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
1.69      www       274: 	if ($visible>2) {
                    275: 	    my $colspan=$maxdepth+1;
1.80      raeburn   276: 	    $discussion.='<tr><td bgcolor="DDDDBB" colspan="'.$colspan.'">'.
                    277:             '<table border="0" width="100%" bgcolor="#DDDDBB"><tr><td align="left">'.
                    278:             '<a href="/adm/feedback?threadedon='.$ressymb.'">'.&mt('Threaded View').'</a>&nbsp;&nbsp;'.
                    279:             '<a href="/adm/feedback?threadedoff='.$ressymb.'">'.&mt('Chronological View').'</a>&nbsp;&nbsp;</td>'.
                    280:             '<td align="right"><a href="/adm/feedback?';
1.78      raeburn   281:             if ($showonlyunread) {
1.80      raeburn   282:                 $discussion .= 'allposts='.$ressymb;
                    283:                 if ($newpostsflag) {
                    284:                     $discussion .= '&previous='.$prevread;
                    285:                 }
                    286:                 $discussion .='">'.&mt('Show all posts').'?';
1.78      raeburn   287:             } else {
1.80      raeburn   288:                 $discussion .= 'onlyunread='.$ressymb;
                    289:                 if ($newpostsflag) {
                    290:                     $discussion .= '&previous='.$prevread;
                    291:                 }
                    292:                 $discussion .= '">'.&mt('Show only unread posts').'?';
1.78      raeburn   293:             }
1.80      raeburn   294:             $discussion .= '</a>&nbsp;&nbsp;</td></tr></table></td></tr>';
1.69      www       295: 	}
1.80      raeburn   296:         my $numhidden = keys %notshown;
                    297:         if ($numhidden > 0) {
                    298:             my $colspan = $maxdepth+1;
                    299:             $discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
                    300:                          '<a href="/adm/feedback?allposts='.$ressymb;
                    301:             if ($newpostsflag) {
                    302:                 $discussion .= '&previous='.$prevread;
                    303:             }
                    304:             $discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
                    305:                          $numhidden.' '.&mt('previously viewed posts').
                    306:                          '<br/></td></tr>';
                    307:         }
1.68      www       308: 	foreach (sort { $a <=> $b } keys %alldiscussion) {
1.80      raeburn   309:             unless ($notshown{$alldiscussion{$_}} eq '1') {
                    310: 	        $discussion.="\n<tr>";
                    311: 	        my $thisdepth=$depth[$alldiscussion{$_}];
                    312: 	        for (1..$thisdepth) {
                    313: 		    $discussion.='<td>&nbsp;&nbsp;&nbsp;</td>';
                    314: 	        }
                    315: 	        my $colspan=$maxdepth-$thisdepth+1;
                    316:                 $discussion.='<td  bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
                    317:                              $discussionitems[$alldiscussion{$_}].
                    318: 	                     '</td></tr>';
1.69      www       319: 	    }
1.80      raeburn   320:         }
                    321:         $discussion.='</table><br /><br />';
1.54      www       322:     }
                    323:     if ($discussiononly) {
                    324: 	$discussion.=(<<ENDDISCUSS);
                    325: <form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
                    326: <input type="submit" name="discuss" value="Post Discussion" />
                    327: <input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
1.73      albertel  328: <input type="hidden" name="symb" value="$ressymb" />
1.54      www       329: <input type="hidden" name="sendit" value="true" />
                    330: <br />
                    331: <font size="1">Note: in anonymous discussion, your name is visible only to
                    332: course faculty</font><br />
1.78      raeburn   333: <b>Title:</b>&nbsp;<input type="text" name="subject" value="" size="30" /><br /><br />
1.63      albertel  334: <textarea name="comment" cols="60" rows="10" wrap="hard"></textarea>
1.54      www       335: <p>
                    336: Attachment (128 KB max size): <input type="file" name="attachment" />
                    337: </p>
                    338: </form>
                    339: ENDDISCUSS
                    340:       $discussion.=&generate_preview_button();
1.74      www       341:     } else {
                    342: 	if (&Apache::lonnet::allowed('pch',
                    343: 				   $ENV{'request.course.id'}.
                    344: 	($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
                    345: 			    $discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='.
                    346: 				$symb.':::" '.$target.'>'.
                    347: 				'<img src="/adm/lonMisc/chat.gif" border="0" />'.
                    348: 				&mt('Post Discussion').'</a></td></tr></table>';
                    349: 			}
                    350:     }
1.54      www       351:    return $discussion;
                    352: }
1.1       www       353: 
1.6       albertel  354: sub mail_screen {
                    355:   my ($r,$feedurl,$options) = @_;
1.45      www       356:   my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
                    357:                                           '','onLoad="window.focus();"');
1.51      albertel  358:   my $title=&Apache::lonnet::gettitle($feedurl);
                    359:   if (!$title) { $title = $feedurl; }
1.69      www       360:   my $quote='';
1.78      raeburn   361:   my $subject = '';
1.80      raeburn   362:   my $prevtag = '';
1.69      www       363:   if ($ENV{'form.replydisc'}) {
                    364:       my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'});
                    365:       my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                    366: 					   $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    367: 					   $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.80      raeburn   368:       unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
1.69      www       369: 	  my $message=$contrib{$idx.':message'};
                    370: 	  $message=~s/\n/\<br \/\>/g;
                    371: 	  $quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
1.79      raeburn   372:           if ($idx > 0) {
                    373:               $subject = 'Re: '.$contrib{$idx.':subject'};
                    374:           }
1.69      www       375:       }
1.80      raeburn   376:       if ($ENV{'form.previous'}) {
                    377:           $prevtag = '<input type="hidden" name="previous" value="'.$ENV{'form.previous'}.'" />';
                    378:       }
1.69      www       379:   }
1.47      bowersj2  380:   my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
1.74      www       381:   my $send=&mt('Send');
1.6       albertel  382:   $r->print(<<ENDDOCUMENT);
1.1       www       383: <html>
                    384: <head>
                    385: <title>The LearningOnline Network with CAPA</title>
1.7       albertel  386: <meta http-equiv="pragma" content="no-cache"></meta>
1.63      albertel  387: <script type="text/javascript">
                    388: //<!--
1.5       www       389:     function gosubmit() {
                    390:         var rec=0;
1.12      albertel  391:         if (typeof(document.mailform.elements.author)!="undefined") {
1.5       www       392:           if (document.mailform.elements.author.checked) {
                    393:              rec=1;
                    394:           } 
                    395:         }
1.12      albertel  396:         if (typeof(document.mailform.elements.question)!="undefined") {
1.5       www       397:           if (document.mailform.elements.question.checked) {
                    398:              rec=1;
                    399:           } 
                    400:         }
1.12      albertel  401:         if (typeof(document.mailform.elements.course)!="undefined") {
1.5       www       402:           if (document.mailform.elements.course.checked) {
                    403:              rec=1;
                    404:           } 
                    405:         }
1.12      albertel  406:         if (typeof(document.mailform.elements.policy)!="undefined") {
1.5       www       407:           if (document.mailform.elements.policy.checked) {
                    408:              rec=1;
                    409:           } 
                    410:         }
1.12      albertel  411:         if (typeof(document.mailform.elements.discuss)!="undefined") {
1.10      www       412:           if (document.mailform.elements.discuss.checked) {
                    413:              rec=1;
                    414:           } 
                    415:         }
1.14      www       416:         if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
                    417:           if (document.mailform.elements.anondiscuss.checked) {
                    418:              rec=1;
                    419:           } 
                    420:         }
1.5       www       421: 
                    422:         if (rec) {
                    423: 	    document.mailform.submit();
                    424:         } else {
                    425:             alert('Please check a feedback type.');
                    426: 	}
                    427:     }
1.63      albertel  428: //-->
1.5       www       429: </script>
1.1       www       430: </head>
1.29      www       431: $bodytag
1.51      albertel  432: <h2><tt>$title</tt></h2>
1.43      www       433: <form action="/adm/feedback" method="post" name="mailform"
                    434: enctype="multipart/form-data">
1.80      raeburn   435: $prevtag
1.63      albertel  436: <input type="hidden" name="postdata" value="$feedurl" />
1.68      www       437: <input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" />
1.5       www       438: Please check at least one of the following feedback types:
1.63      albertel  439: $options<hr />
1.69      www       440: $quote
1.63      albertel  441: <p>My question/comment/feedback:</p>
                    442: <p>
1.47      bowersj2  443: $latexHelp
1.78      raeburn   444: Title: <input type="text" name="subject" size="30" value="$subject" /></p>
                    445: <p>
1.63      albertel  446: <textarea name="comment" cols="60" rows="10" wrap="hard">
                    447: </textarea></p>
                    448: <p>
1.42      www       449: Attachment (128 KB max size): <input type="file" name="attachment" />
                    450: </p>
                    451: <p>
                    452: <input type="hidden" name="sendit" value="1" />
1.74      www       453: <input type="button" value="$send" onClick='gosubmit();' />
1.42      www       454: </p>
1.2       www       455: </form>
1.1       www       456: ENDDOCUMENT
1.33      www       457: $r->print(&generate_preview_button().'</body></html>');
1.6       albertel  458: }
                    459: 
                    460: sub fail_redirect {
                    461:   my ($r,$feedurl) = @_;
1.70      www       462:   if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
1.6       albertel  463:   $r->print (<<ENDFAILREDIR);
1.72      albertel  464: <html>
1.5       www       465: <head><title>Feedback not sent</title>
1.63      albertel  466: <meta http-equiv="pragma" content="no-cache" />
                    467: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
1.5       www       468: </head>
                    469: <body bgcolor="#FFFFFF">
1.63      albertel  470: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
1.8       www       471: <b>Sorry, no recipients  ...</b>
1.5       www       472: </body>
                    473: </html>
                    474: ENDFAILREDIR
                    475: }
1.4       www       476: 
1.6       albertel  477: sub redirect_back {
1.80      raeburn   478:   my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status,$previous) = @_;
                    479:   my $prevtag = '';
                    480:   my $qrystr = '';
1.70      www       481:   if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
1.80      raeburn   482:   if ($previous > 0) {
                    483:       $qrystr = 'previous='.$previous;
                    484:       if ($feedurl =~ /\?register=1/) {
                    485:           $feedurl .= '&'.$qrystr;
                    486:       } else {
                    487:           $feedurl .= '?'.$qrystr;
                    488:       }
                    489:       $prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
                    490:   }
1.6       albertel  491:   $r->print (<<ENDREDIR);
1.72      albertel  492: <html>
1.3       www       493: <head>
                    494: <title>Feedback sent</title>
1.63      albertel  495: <meta http-equiv="pragma" content="no-cache" />
1.80      raeburn   496: <meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
1.2       www       497: </head>
1.49      www       498: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
1.63      albertel  499: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
1.5       www       500: $typestyle
1.32      albertel  501: <b>Sent $sendsomething message(s), and $sendposts post(s).</b>
1.63      albertel  502: <font color="red">$status</font>
1.49      www       503: <form name="reldt" action="$feedurl" target="loncapaclient">
1.80      raeburn   504: $prevtag
1.49      www       505: </form>
1.2       www       506: </body>
                    507: </html>
                    508: ENDREDIR
                    509: }
1.6       albertel  510: 
                    511: sub no_redirect_back {
                    512:   my ($r,$feedurl) = @_;
                    513:   $r->print (<<ENDNOREDIR);
1.72      albertel  514: <html>
1.2       www       515: <head><title>Feedback not sent</title>
1.63      albertel  516: <meta http-equiv="pragma" content="no-cache" />
1.7       albertel  517: ENDNOREDIR
                    518: 
1.8       www       519:   if ($feedurl!~/^\/adm\/feedback/) { 
1.7       albertel  520:     $r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
                    521:   }
                    522:   
1.8       www       523:   $r->print (<<ENDNOREDIRTWO);
1.2       www       524: </head>
1.49      www       525: <body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
1.63      albertel  526: <img align="right" src="/adm/lonIcons/lonlogos.gif" />
1.8       www       527: <b>Sorry, no feedback possible on this resource  ...</b>
1.2       www       528: </body>
                    529: </html>
1.8       www       530: ENDNOREDIRTWO
1.2       www       531: }
1.6       albertel  532: 
                    533: sub screen_header {
1.65      www       534:     my ($feedurl) = @_;
                    535:     my $msgoptions='';
                    536:     my $discussoptions='';
                    537:     unless ($ENV{'form.replydisc'}) {
                    538: 	if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
                    539: 	    $msgoptions= 
                    540: 		'<p><input type="checkbox" name="author" /> '.
                    541: 		&mt('Feedback to resource author').'</p>';
                    542: 	}
                    543: 	if (&feedback_available(1)) {
                    544: 	    $msgoptions.=
                    545: 		'<br /><input type="checkbox" name="question" /> '.
                    546: 		&mt('Question about resource content');
                    547: 	}
                    548: 	if (&feedback_available(0,1)) {
                    549: 	    $msgoptions.=
                    550: 		'<br /><input type="checkbox" name="course" /> '.
                    551: 		&mt('Question/Comment/Feedback about course content');
                    552: 	}
                    553: 	if (&feedback_available(0,0,1)) {
                    554: 	    $msgoptions.=
                    555: 		'<br /><input type="checkbox" name="policy" /> '.
                    556: 		&mt('Question/Comment/Feedback about course policy');
                    557: 	}
                    558:     }
                    559:     if ($ENV{'request.course.id'}) {
                    560: 	if (&Apache::lonnet::allowed('pch',
                    561: 				     $ENV{'request.course.id'}.
                    562: 				     ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.74      www       563: 	    $discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
                    564: 		($ENV{'form.replydisc'}?' checked="1"':'').' /> '.
1.65      www       565: 		&mt('Contribution to course discussion of resource');
                    566: 	    $discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '.
                    567: 		&mt('Anonymous contribution to course discussion of resource').
                    568: 		' <i>('.&mt('name only visible to course faculty').')</i>';
1.20      www       569:       }
1.65      www       570:     }
1.74      www       571:     if ($msgoptions) { $msgoptions='<h2><img src="/adm/lonMisc/feedback.gif" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
1.65      www       572:     if ($discussoptions) { 
1.74      www       573: 	$discussoptions='<h2><img src="/adm/lonMisc/chat.gif" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
1.65      www       574:     return $msgoptions.$discussoptions;
1.6       albertel  575: }
                    576: 
                    577: sub resource_output {
                    578:   my ($feedurl) = @_;
1.46      albertel  579:   my $usersaw=&Apache::lonnet::ssi_body($feedurl);
1.6       albertel  580:   $usersaw=~s/\<body[^\>]*\>//gi;
                    581:   $usersaw=~s/\<\/body\>//gi;
                    582:   $usersaw=~s/\<html\>//gi;
                    583:   $usersaw=~s/\<\/html\>//gi;
                    584:   $usersaw=~s/\<head\>//gi;
                    585:   $usersaw=~s/\<\/head\>//gi;
                    586:   $usersaw=~s/action\s*\=/would_be_action\=/gi;
                    587:   return $usersaw;
                    588: }
                    589: 
                    590: sub clear_out_html {
1.39      www       591:   my ($message,$override)=@_;
1.37      albertel  592:   my $cid=$ENV{'request.course.id'};
1.39      www       593:   if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
                    594:       ($override)) {
1.37      albertel  595:       # allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG> 
                    596:       # <BLOCKQUOTE> <DIV .*> <DIV> <IMG>
                    597:       my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
1.61      www       598: 		BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
                    599:                 M=>1);
1.37      albertel  600: 
                    601:       $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
1.48      albertel  602: 	  {($html{uc($2)}&&(length($1)<1000))?"\<$1":"\&lt;$1"}/ge;
1.37      albertel  603:       $message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
1.48      albertel  604: 	  {($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\&gt;"}/ge;
1.37      albertel  605:   } else {
                    606:       $message=~s/\</\&lt\;/g;
                    607:       $message=~s/\>/\&gt\;/g;
                    608:   }
1.6       albertel  609:   return $message;
                    610: }
                    611: 
                    612: sub assemble_email {
1.40      albertel  613:   my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
1.6       albertel  614:   my $email=<<"ENDEMAIL";
                    615: Refers to <a href="$feedurl">$feedurl</a>
                    616: 
                    617: $message
                    618: ENDEMAIL
                    619:     my $citations=<<"ENDCITE";
                    620: <h2>Previous attempts of student (if applicable)</h2>
                    621: $prevattempts
1.63      albertel  622: <br /><hr />
1.6       albertel  623: <h2>Original screen output (if applicable)</h2>
                    624: $usersaw
1.40      albertel  625: <h2>Correct Answer(s) (if applicable)</h2>
                    626: $useranswer
1.6       albertel  627: ENDCITE
                    628:   return ($email,$citations);
                    629: }
                    630: 
1.35      www       631: sub secapply {
                    632:     my $rec=shift;
1.36      www       633:     my $defaultflag=shift;
                    634:     $rec=~s/\s+//g;
                    635:     $rec=~s/\@/\:/g;
                    636:     my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
                    637:     if ($sections) {
                    638: 	foreach (split(/\;/,$sections)) {
                    639:             if (($_ eq $ENV{'request.course.sec'}) ||
                    640:                 ($defaultflag && ($_ eq '*'))) {
                    641:                 return $adr; 
                    642:             }
                    643:         }
                    644:     } else {
                    645:        return $rec;
                    646:     }
                    647:     return '';
1.35      www       648: }
                    649: 
1.6       albertel  650: sub decide_receiver {
1.36      www       651:   my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
1.6       albertel  652:   my $typestyle='';
                    653:   my %to=();
1.36      www       654:   if ($ENV{'form.author'}||$author) {
1.8       www       655:     $typestyle.='Submitting as Author Feedback<br>';
1.6       albertel  656:     $feedurl=~/^\/res\/(\w+)\/(\w+)\//;
                    657:     $to{$2.':'.$1}=1;
                    658:   }
1.36      www       659:   if ($ENV{'form.question'}||$question) {
1.8       www       660:     $typestyle.='Submitting as Question<br>';
1.24      harris41  661:     foreach (split(/\,/,
                    662: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
                    663: 	     ) {
1.36      www       664: 	my $rec=&secapply($_,$defaultflag);
                    665:         if ($rec) { $to{$rec}=1; }
1.24      harris41  666:     } 
1.6       albertel  667:   }
1.36      www       668:   if ($ENV{'form.course'}||$course) {
1.63      albertel  669:     $typestyle.='Submitting as Comment<br />';
1.24      harris41  670:     foreach (split(/\,/,
                    671: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
                    672: 	     ) {
1.36      www       673: 	my $rec=&secapply($_,$defaultflag);
                    674:         if ($rec) { $to{$rec}=1; }
1.24      harris41  675:     } 
1.6       albertel  676:   }
1.36      www       677:   if ($ENV{'form.policy'}||$policy) {
1.63      albertel  678:     $typestyle.='Submitting as Policy Feedback<br />';
1.24      harris41  679:     foreach (split(/\,/,
                    680: 		   $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
                    681: 	     ) {
1.36      www       682: 	my $rec=&secapply($_,$defaultflag);
                    683:         if ($rec) { $to{$rec}=1; }
1.24      harris41  684:     } 
1.6       albertel  685:   }
1.36      www       686:   if ((scalar(%to) eq '0') && (!$defaultflag)) {
                    687:      ($typestyle,%to)=
                    688: 	 &decide_receiver($feedurl,$author,$question,$course,$policy,1);
                    689:   }
1.6       albertel  690:   return ($typestyle,%to);
1.36      www       691: }
                    692: 
                    693: sub feedback_available {
                    694:     my ($question,$course,$policy)=@_;
                    695:     my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
                    696:     return scalar(%to);
1.6       albertel  697: }
                    698: 
                    699: sub send_msg {
1.43      www       700:   my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
1.6       albertel  701:   my $status='';
                    702:   my $sendsomething=0;
1.24      harris41  703:   foreach (keys %to) {
1.6       albertel  704:     if ($_) {
1.22      www       705:       my $declutter=&Apache::lonnet::declutter($feedurl);
1.8       www       706:       unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
1.43      www       707:                'Feedback ['.$declutter.']',$email,$citations,$feedurl,
                    708:                 $attachmenturl)=~/ok/) {
1.63      albertel  709: 	$status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
1.6       albertel  710:       } else {
                    711: 	$sendsomething++;
                    712:       }
                    713:     }
1.24      harris41  714:   }
1.18      www       715: 
                    716:     my %record=&Apache::lonnet::restore('_feedback');
                    717:     my ($temp)=keys %record;
                    718:     unless ($temp=~/^error\:/) {
                    719:        my %newrecord=();
                    720:        $newrecord{'resource'}=$feedurl;
                    721:        $newrecord{'subnumber'}=$record{'subnumber'}+1;
                    722:        unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
1.63      albertel  723: 	   $status.='<br />'.&mt('Not registered').'<br />';
1.18      www       724:        }
                    725:     }
                    726:        
1.6       albertel  727:   return ($status,$sendsomething);
                    728: }
                    729: 
1.13      www       730: sub adddiscuss {
1.78      raeburn   731:     my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
1.13      www       732:     my $status='';
1.23      www       733:     if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
                    734:         ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
1.20      www       735: 
1.13      www       736:     my %contrib=('message'      => $email,
                    737:                  'sendername'   => $ENV{'user.name'},
1.26      www       738:                  'senderdomain' => $ENV{'user.domain'},
                    739:                  'screenname'   => $ENV{'environment.screenname'},
                    740:                  'plainname'    => $ENV{'environment.firstname'}.' '.
                    741: 		                   $ENV{'environment.middlename'}.' '.
                    742:                                    $ENV{'environment.lastname'}.' '.
1.42      www       743:                                    $ENV{'enrironment.generation'},
1.78      raeburn   744:                  'attachmenturl'=> $attachmenturl,
                    745:                  'subject'      => $subject);
1.65      www       746:     if ($ENV{'form.replydisc'}) {
1.66      www       747: 	$contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1];
1.65      www       748:     }
1.14      www       749:     if ($anon) {
                    750: 	$contrib{'anonymous'}='true';
                    751:     }
1.13      www       752:     if (($symb) && ($email)) {
1.14      www       753:        $status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
1.13      www       754:         &Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
                    755:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
1.17      www       756: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.21      www       757:         my %storenewentry=($symb => time);
1.63      albertel  758:         $status.='<br />'.&mt('Updating discussion time').': '.
1.21      www       759:         &Apache::lonnet::put('discussiontimes',\%storenewentry,
                    760:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    761: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
1.13      www       762:     }
1.17      www       763:     my %record=&Apache::lonnet::restore('_discussion');
                    764:     my ($temp)=keys %record;
                    765:     unless ($temp=~/^error\:/) {
                    766:        my %newrecord=();
                    767:        $newrecord{'resource'}=$symb;
                    768:        $newrecord{'subnumber'}=$record{'subnumber'}+1;
1.63      albertel  769:        $status.='<br />'.&mt('Registering').': '.
1.21      www       770:                &Apache::lonnet::cstore(\%newrecord,'_discussion');
1.20      www       771:     }
                    772:     } else {
                    773: 	$status.='Failed.';
1.17      www       774:     }
1.63      albertel  775:     return $status.'<br />';   
1.13      www       776: }
                    777: 
1.33      www       778: # ----------------------------------------------------------- Preview function
                    779: 
                    780: sub show_preview {
                    781:     my $r=shift;
                    782:     my $message=&clear_out_html($ENV{'form.comment'});
                    783:     $message=~s/\n/\<br \/\>/g;
                    784:     $message=&Apache::lontexconvert::msgtexconverted($message);
1.78      raeburn   785:     my $subject=&clear_out_html($ENV{'form.subject'});
                    786:     $subject=~s/\n/\<br \/\>/g;
                    787:     $subject=&Apache::lontexconvert::msgtexconverted($subject);
1.33      www       788:     $r->print('<table border="2"><tr><td>'.
1.78      raeburn   789:        '<b>Subject:</b> '.$subject.'<br /><br />'.
1.33      www       790:        $message.'</td></tr></table>');
                    791: }
                    792: 
                    793: sub generate_preview_button {
1.65      www       794:     my $pre=&mt("Show Preview");
1.33      www       795:     return(<<ENDPREVIEW);
                    796: <form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
1.78      raeburn   797: <input type="hidden" name="subject">
1.33      www       798: <input type="hidden" name="comment" />
1.65      www       799: <input type="button" value="$pre"
1.78      raeburn   800: onClick="this.form.comment.value=document.mailform.comment.value;this.form.subject.value=document.mailform.subject.value;this.form.submit();" />
1.33      www       801: </form>
                    802: ENDPREVIEW
                    803: }
1.71      www       804: 
1.6       albertel  805: sub handler {
                    806:   my $r = shift;
1.8       www       807:   if ($r->header_only) {
1.71      www       808:      &Apache::loncommon::content_type($r,'text/html');
1.8       www       809:      $r->send_http_header;
                    810:      return OK;
                    811:   }
1.15      www       812: 
                    813: # --------------------------- Get query string for limited number of parameters
                    814: 
1.27      stredwic  815:    &Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
1.80      raeburn   816:          ['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff','onlyunread','allposts','previous']);
1.15      www       817: 
1.80      raeburn   818:   if (($ENV{'form.allposts'}) || ($ENV{'form.onlyunread'})) {
                    819: # ----------------------------------------------------------------- Modify display setting for this discussion 
1.78      raeburn   820:       &Apache::loncommon::content_type($r,'text/html');
                    821:       $r->send_http_header;
1.80      raeburn   822:       my $symb=$ENV{'form.allposts'}?$ENV{'form.allposts'}:$ENV{'form.onlyunread'};
1.78      raeburn   823:       my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1.80      raeburn   824:       my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
1.78      raeburn   825:                           $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    826:                           $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    827:       my %readinghash = ();
                    828:                                                                                  
                    829:       if ($contrib{'version'}) {
                    830:           if ($ENV{'form.allposts'}) {
1.80      raeburn   831:               $readinghash{$symb.'_showonlyunread'} = 0;
1.78      raeburn   832:           } elsif ($ENV{'form.onlyunread'}) {
1.80      raeburn   833:               $readinghash{$symb.'_showonlyunread'} = 1;
1.78      raeburn   834:           }
1.80      raeburn   835:           &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%readinghash,$ENV{'user.domain'},$ENV{'user.name'});
1.78      raeburn   836:       }
1.80      raeburn   837:       &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed reading status').'<br />','0','0','',$ENV{'form.previous'});
1.78      raeburn   838:       return OK;
                    839:   } elsif (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
1.15      www       840: # ----------------------------------------------------------------- Hide/unhide
1.71      www       841:     &Apache::loncommon::content_type($r,'text/html');
1.15      www       842:     $r->send_http_header;
                    843: 
                    844:     my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
                    845: 
                    846:     my ($symb,$idx)=split(/\:\:\:/,$entry);
1.52      www       847:     my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1.15      www       848: 
                    849:     my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                    850:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    851: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    852: 
                    853:         
                    854:     my $currenthidden=$contrib{'hidden'};
                    855:     
                    856:     if ($ENV{'form.hide'}) {
                    857: 	$currenthidden.='.'.$idx.'.';
                    858:     } else {
                    859:         $currenthidden=~s/\.$idx\.//g;
                    860:     }
                    861:     my %newhash=('hidden' => $currenthidden);
1.38      www       862: 
                    863:     &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
                    864:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    865: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    866: 
                    867:     &redirect_back($r,&Apache::lonnet::clutter($url),
1.80      raeburn   868:        &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1.69      www       869:   } elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) {
1.72      albertel  870:       &Apache::loncommon::content_type($r,'text/html');
                    871:       $r->send_http_header;
1.69      www       872:       if ($ENV{'form.threadedon'}) {
                    873: 	  &Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
                    874: 	  &Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
                    875:       } else {
                    876:  	  &Apache::lonnet::del('environment',['threadeddiscussion']);
                    877: 	  &Apache::lonnet::delenv('environment\.threadeddiscussion');
1.72      albertel  878:       }
1.69      www       879:       my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'};
                    880:       my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
                    881:       &redirect_back($r,&Apache::lonnet::clutter($url),
1.80      raeburn   882: 		     &mt('Changed discussion view mode').'<br />','0','0','',$ENV{'form.previous'});
1.38      www       883:   } elsif ($ENV{'form.deldisc'}) {
                    884: # --------------------------------------------------------------- Hide for good
1.71      www       885:     &Apache::loncommon::content_type($r,'text/html');
1.38      www       886:     $r->send_http_header;
                    887: 
                    888:     my $entry=$ENV{'form.deldisc'};
                    889: 
                    890:     my ($symb,$idx)=split(/\:\:\:/,$entry);
1.52      www       891:     my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
1.38      www       892: 
                    893:     my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
                    894:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    895: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    896: 
                    897:         
                    898:     my $currentdeleted=$contrib{'deleted'};
                    899:     
                    900:     $currentdeleted.='.'.$idx.'.';
                    901: 
                    902:     my %newhash=('deleted' => $currentdeleted);
1.15      www       903: 
                    904:     &Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
                    905:                      $ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
                    906: 		     $ENV{'course.'.$ENV{'request.course.id'}.'.num'});
                    907: 
1.30      www       908:     &redirect_back($r,&Apache::lonnet::clutter($url),
1.80      raeburn   909:        &mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
1.33      www       910:   } elsif ($ENV{'form.preview'}) {
                    911: # -------------------------------------------------------- User wants a preview
1.76      albertel  912:       $r->content_type('text/html');
                    913:       $r->send_http_header;
1.33      www       914:       &show_preview($r);
1.15      www       915:   } else {
                    916: # ------------------------------------------------------------- Normal feedback
1.6       albertel  917:   my $feedurl=$ENV{'form.postdata'};
                    918:   $feedurl=~s/^http\:\/\///;
                    919:   $feedurl=~s/^$ENV{'SERVER_NAME'}//;
                    920:   $feedurl=~s/^$ENV{'HTTP_HOST'}//;
1.62      www       921:   $feedurl=~s/\?.+$//;
1.8       www       922: 
1.66      www       923:   my $symb;
                    924:   if ($ENV{'form.replydisc'}) {
                    925:       $symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0];
                    926:       my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
                    927:       $feedurl=&Apache::lonnet::clutter($url);
                    928:   } else {
                    929:       $symb=&Apache::lonnet::symbread($feedurl);
                    930:   }
1.31      www       931:   unless ($symb) {
                    932:       $symb=$ENV{'form.symb'};
                    933:       if ($symb) {
1.52      www       934: 	  my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
1.31      www       935:           $feedurl=&Apache::lonnet::clutter($url);
                    936:       }
                    937:   }
1.8       www       938:   my $goahead=1;
                    939:   if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
                    940:       unless ($symb) { $goahead=0; }
                    941:   }
1.74      www       942:   # backward compatibility (bulltin boards used to be 'wrapped')
1.73      albertel  943:   if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
                    944:       $feedurl=~s|^/adm/wrapper||;
                    945:   }
1.8       www       946:   if ($goahead) {
                    947: # Go ahead with feedback, no ambiguous reference
1.71      www       948:     &Apache::loncommon::content_type($r,'text/html');
1.8       www       949:     $r->send_http_header;
1.6       albertel  950:   
1.8       www       951:     if (
1.7       albertel  952:       (
                    953:        ($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
                    954:       ) 
                    955:       || 
                    956:       ($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
1.31      www       957:       ||
                    958:       ($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
1.7       albertel  959:      ) {
1.6       albertel  960: # --------------------------------------------------- Print login screen header
                    961:     unless ($ENV{'form.sendit'}) {
                    962:       my $options=&screen_header($feedurl);
                    963:       if ($options) {
                    964: 	&mail_screen($r,$feedurl,$options);
                    965:       } else {
                    966: 	&fail_redirect($r,$feedurl);
                    967:       }
                    968:     } else {
                    969:       
                    970: # Get previous user input
1.9       albertel  971:       my $prevattempts=&Apache::loncommon::get_previous_attempt(
1.11      albertel  972:             $symb,$ENV{'user.name'},$ENV{'user.domain'},
1.9       albertel  973:             $ENV{'request.course.id'});
1.6       albertel  974: 
                    975: # Get output from resource
                    976:       my $usersaw=&resource_output($feedurl);
                    977: 
1.50      albertel  978: # Get resource answer (need to allow student to view grades for this to work)
                    979:       &Apache::lonnet::appenv(('allowed.vgr'=>'F'));
1.40      albertel  980:       my $useranswer=&Apache::loncommon::get_student_answers(
                    981:                        $symb,$ENV{'user.name'},$ENV{'user.domain'},
                    982: 		       $ENV{'request.course.id'});
1.50      albertel  983:       &Apache::lonnet::delenv('allowed.vgr');
1.42      www       984: # Get attachments, if any, and not too large
                    985:       my $attachmenturl='';
                    986:       if ($ENV{'form.attachment.filename'}) {
                    987: 	  unless (length($ENV{'form.attachment'})>131072) {
1.82      albertel  988: 	      $attachmenturl=&Apache::lonnet::userfileupload('attachment',undef,'feedback');
1.42      www       989: 	  }
                    990:       }
1.6       albertel  991: # Filter HTML out of message (could be nasty)
1.39      www       992:       my $message=&clear_out_html($ENV{'form.comment'});
1.6       albertel  993: 
                    994: # Assemble email
1.8       www       995:       my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
1.40      albertel  996:           $usersaw,$useranswer);
                    997:  
1.6       albertel  998: # Who gets this?
                    999:       my ($typestyle,%to) = &decide_receiver($feedurl);
                   1000: 
                   1001: # Actually send mail
1.43      www      1002:       my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
                   1003:           $attachmenturl,%to);
1.13      www      1004: 
                   1005: # Discussion? Store that.
                   1006: 
1.32      albertel 1007:       my $numpost=0;
1.13      www      1008:       if ($ENV{'form.discuss'}) {
1.78      raeburn  1009:           my $subject = &clear_out_html($ENV{'form.subject'});
                   1010: 	  $typestyle.=&adddiscuss($symb,$message,0,$attachmenturl,$subject);
1.32      albertel 1011: 	  $numpost++;
1.13      www      1012:       }
1.6       albertel 1013: 
1.14      www      1014:       if ($ENV{'form.anondiscuss'}) {
1.78      raeburn  1015:           my $subject = &clear_out_html($ENV{'form.subject'});
                   1016: 	  $typestyle.=&adddiscuss($symb,$message,1,$attachmenturl,$subject);
1.32      albertel 1017: 	  $numpost++;
1.14      www      1018:       }
                   1019: 
                   1020: 
1.6       albertel 1021: # Receipt screen and redirect back to where came from
1.80      raeburn  1022:       &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status,$ENV{'form.previous'});
1.6       albertel 1023: 
                   1024:     }
1.8       www      1025:    } else {
1.7       albertel 1026: # Unable to give feedback
1.6       albertel 1027:     &no_redirect_back($r,$feedurl);
1.8       www      1028:    }
                   1029:   } else {
                   1030: # Ambiguous Problem Resource
1.60      albertel 1031:       if ( &Apache::lonnet::mod_perl_version() == 2 ) {
1.53      albertel 1032: 	  &Apache::lonnet::cleanenv();
1.58      albertel 1033:       }
1.53      albertel 1034:       $r->internal_redirect('/adm/ambiguous');
1.6       albertel 1035:   }
1.15      www      1036: }
1.6       albertel 1037:   return OK;
1.1       www      1038: } 
                   1039: 
                   1040: 1;
                   1041: __END__

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