File:
[LON-CAPA] /
loncom /
interface /
lonfeedback.pm
Revision
1.81:
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select for diffs
Wed May 5 23:04:57 2004 UTC (20 years, 3 months ago) by
raeburn
Branches:
MAIN
CVS tags:
HEAD
Reverting lonbulletin to v 1.120. Time of the previous visit passed in a query string retrieved in lonfeedback instead, so labelling of posts as "NEW" until user leaves board/resource works for both boards and resources.
# The LearningOnline Network
# Feedback
#
# $Id: lonfeedback.pm,v 1.81 2004/05/05 23:04:57 raeburn Exp $
#
# Copyright Michigan State University Board of Trustees
#
# This file is part of the LearningOnline Network with CAPA (LON-CAPA).
#
# LON-CAPA is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# LON-CAPA is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with LON-CAPA; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
#
# /home/httpd/html/adm/gpl.txt
#
# http://www.lon-capa.org/
#
###
package Apache::lonfeedback;
use strict;
use Apache::Constants qw(:common);
use Apache::lonmsg();
use Apache::loncommon();
use Apache::lontexconvert();
use Apache::lonlocal;
sub list_discussion {
my ($mode,$status,$symb)=@_;
# &Apache::lonnet::logthis("status is $status");
if (!($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER'
|| $status eq 'OPEN')) {
return '';
}
my $discussiononly=0;
if ($mode eq 'board') { $discussiononly=1; }
unless ($ENV{'request.course.id'}) { return ''; }
my $crs='/'.$ENV{'request.course.id'};
if ($ENV{'request.course.sec'}) {
$crs.='_'.$ENV{'request.course.sec'};
}
$crs=~s/\_/\//g;
unless ($symb) {
$symb=&Apache::lonnet::symbread();
}
unless ($symb) { return ''; }
# backward compatibility (bulletin boards used to be 'wrapped')
my $ressymb=$symb;
if ($mode eq 'board') {
unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) {
$ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|;
}
}
# Get discussion display settings for this discussion
my $lastkey = $ressymb.'_lastread';
my $showkey = $ressymb.'_showonlyunread';
my $visitkey = $ressymb.'_visit';
my %dischash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$lastkey,$showkey,$visitkey],$ENV{'user.domain'},$ENV{'user.name'});
my $showonlyunread = 0;
my $prevread = 0;
my $previous = 0;
my $visit = 0;
my $newpostsflag = 0;
# Retain identification of "NEW" posts identified in last display, if continuing 'previous' browsing of posts.
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},['previous']);
$previous = $ENV{'form.previous'};
if ($previous > 0) {
$prevread = $previous;
} elsif (defined($dischash{$lastkey})) {
$prevread = $dischash{$lastkey};
}
if (defined($dischash{$showkey})) {
$showonlyunread = $dischash{$showkey};
}
if (defined($dischash{$visitkey})) {
$visit = $dischash{$visitkey};
}
$visit ++;
my $seeid=&Apache::lonnet::allowed('rin',$crs);
my $viewgrades=(&Apache::lonnet::allowed('vgr',$crs)
&& ($symb=~/\.(problem|exam|quiz|assess|survey|form)$/));
my @discussionitems=();
my %contrib=&Apache::lonnet::restore($ressymb,$ENV{'request.course.id'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
my $visible=0;
my @depth=();
my @original=();
my @index=();
my @replies=();
my %alldiscussion=();
my %notshown = ();
my $maxdepth=0;
my $target='';
unless ($ENV{'browser.interface'} eq 'textual' ||
$ENV{'environment.remote'} eq 'off' ) {
$target='target="LONcom"';
}
my $now = time;
my %discinfo = ();
$discinfo{$visitkey} = $visit;
$discinfo{$lastkey} = $now;
&Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'});
if ($contrib{'version'}) {
for (my $id=1;$id<=$contrib{'version'};$id++) {
my $idx=$id;
my $posttime = $contrib{$idx.':timestamp'};
if ($prevread > 0 && $prevread <= $posttime) {
$newpostsflag = 1;
}
my $hidden=($contrib{'hidden'}=~/\.$idx\./);
my $deleted=($contrib{'deleted'}=~/\.$idx\./);
my $origindex='0.';
if (($contrib{$idx.':replyto'}) && ($ENV{'environment.threadeddiscussion'})) {
# this is a follow-up message
$original[$idx]=$original[$contrib{$idx.':replyto'}];
$depth[$idx]=$depth[$contrib{$idx.':replyto'}]+1;
$origindex=$index[$contrib{$idx.':replyto'}];
if ($depth[$idx]>$maxdepth) { $maxdepth=$depth[$idx]; }
} else {
# this is an original message
$original[$idx]=0;
$depth[$idx]=0;
}
if ($replies[$depth[$idx]]) {
$replies[$depth[$idx]]++;
} else {
$replies[$depth[$idx]]=1;
}
unless ((($hidden) && (!$seeid)) || ($deleted)) {
$visible++;
my $message=$contrib{$idx.':message'};
$message=~s/\n/\<br \/\>/g;
$message=&Apache::lontexconvert::msgtexconverted($message);
my $subject=$contrib{$idx.':subject'};
if (defined($subject)) {
$subject=~s/\n/\<br \/\>/g;
$subject=&Apache::lontexconvert::msgtexconverted($subject);
}
if ($contrib{$idx.':attachmenturl'}) {
my ($fname,$ft)
=($contrib{$idx.':attachmenturl'}=~/\/(\w+)\.(\w+)$/);
$message.='<p>'.&mt('Attachment').': <a href="'.
&Apache::lonnet::tokenwrapper(
$contrib{$idx.':attachmenturl'}).
'"><tt>'.$fname.'.'.$ft.'</tt></a></p>';
}
if ($message) {
if ($hidden) {
$message='<font color="#888888">'.$message.'</font>';
}
my $screenname=&Apache::loncommon::screenname(
$contrib{$idx.':sendername'},
$contrib{$idx.':senderdomain'});
my $plainname=&Apache::loncommon::nickname(
$contrib{$idx.':sendername'},
$contrib{$idx.':senderdomain'});
my $sender=&mt('Anonymous');
if ((!$contrib{$idx.':anonymous'}) || ($seeid)) {
$sender=&Apache::loncommon::aboutmewrapper(
$plainname,
$contrib{$idx.':sendername'},
$contrib{$idx.':senderdomain'}).' ('.
$contrib{$idx.':sendername'}.' at '.
$contrib{$idx.':senderdomain'}.')';
if ($contrib{$idx.':anonymous'}) {
$sender.=' ['.&mt('anonymous').'] '.
$screenname;
}
if ($seeid) {
if ($hidden) {
$sender.=' <a href="/adm/feedback?unhide='.
$ressymb.':::'.$idx;
if ($newpostsflag) {
$sender .= '&previous='.$prevread;
}
$sender .= '">'.&mt('Make Visible').'</a>';
} else {
$sender.=' <a href="/adm/feedback?hide='.
$ressymb.':::'.$idx;
if ($newpostsflag) {
$sender .= '&previous='.$prevread;
}
$sender .= '">'.&mt('Hide').'</a>';
}
$sender.=' <a href="/adm/feedback?deldisc='.
$ressymb.':::'.$idx;
if ($newpostsflag) {
$sender .= '&previous='.$prevread;
}
$sender .= '">'.&mt('Delete').'</a>';
}
} else {
if ($screenname) {
$sender='<i>'.$screenname.'</i>';
}
}
if (&Apache::lonnet::allowed('pch',
$ENV{'request.course.id'}.
($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
$sender.=' <a href="/adm/feedback?replydisc='.
$ressymb.':::'.$idx;
if ($newpostsflag) {
$sender .= '&previous='.$prevread;
}
$sender .= '" '.$target.'>'.&mt('Reply').'</a>';
}
my $vgrlink;
if ($viewgrades) {
$vgrlink=&Apache::loncommon::submlink('Submissions',
$contrib{$idx.':sendername'},$contrib{$idx.':senderdomain'},$symb);
}
#figure out at what position this needs to print
my $thisindex=$idx;
if ($ENV{'environment.threadeddiscussion'}) {
$thisindex=$origindex.substr('00'.$replies[$depth[$idx]],-2,2);
}
$alldiscussion{$thisindex}=$idx;
$index[$idx]=$thisindex;
my $spansize = 2;
if ($showonlyunread && $prevread > $posttime) {
$notshown{$idx} = 1;
} else {
$discussionitems[$idx]='<p><table border="0" width="100%"><tr>';
if ($prevread > 0 && $prevread <= $posttime) {
$discussionitems[$idx] .= '<td align="left" bgcolor="#FFFFFF"><font color="#FF0000">NEW</font></td>';
}
$discussionitems[$idx] .= '<td align ="left"> '.
'<b>'.$subject.'</b> '.
$sender.'</b> '.$vgrlink.' ('.
localtime($posttime).')</td></tr>'.
'</table><blockquote>'.$message.'</blockquote></p>';
}
}
}
}
}
my $discussion='';
if ($visible) {
# Print the discusssion
$discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">';
if ($visible>2) {
my $colspan=$maxdepth+1;
$discussion.='<tr><td bgcolor="DDDDBB" colspan="'.$colspan.'">'.
'<table border="0" width="100%" bgcolor="#DDDDBB"><tr><td align="left">'.
'<a href="/adm/feedback?threadedon='.$ressymb.'">'.&mt('Threaded View').'</a> '.
'<a href="/adm/feedback?threadedoff='.$ressymb.'">'.&mt('Chronological View').'</a> </td>'.
'<td align="right"><a href="/adm/feedback?';
if ($showonlyunread) {
$discussion .= 'allposts='.$ressymb;
if ($newpostsflag) {
$discussion .= '&previous='.$prevread;
}
$discussion .='">'.&mt('Show all posts').'?';
} else {
$discussion .= 'onlyunread='.$ressymb;
if ($newpostsflag) {
$discussion .= '&previous='.$prevread;
}
$discussion .= '">'.&mt('Show only unread posts').'?';
}
$discussion .= '</a> </td></tr></table></td></tr>';
}
my $numhidden = keys %notshown;
if ($numhidden > 0) {
my $colspan = $maxdepth+1;
$discussion.="\n".'<tr><td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
'<a href="/adm/feedback?allposts='.$ressymb;
if ($newpostsflag) {
$discussion .= '&previous='.$prevread;
}
$discussion .= '">'.&mt('Show all posts').'</a> '.&mt('to display').' '.
$numhidden.' '.&mt('previously viewed posts').
'<br/></td></tr>';
}
foreach (sort { $a <=> $b } keys %alldiscussion) {
unless ($notshown{$alldiscussion{$_}} eq '1') {
$discussion.="\n<tr>";
my $thisdepth=$depth[$alldiscussion{$_}];
for (1..$thisdepth) {
$discussion.='<td> </td>';
}
my $colspan=$maxdepth-$thisdepth+1;
$discussion.='<td bgcolor="#CCCCCC" colspan="'.$colspan.'">'.
$discussionitems[$alldiscussion{$_}].
'</td></tr>';
}
}
$discussion.='</table><br /><br />';
}
if ($discussiononly) {
$discussion.=(<<ENDDISCUSS);
<form action="/adm/feedback" method="post" name="mailform" enctype="multipart/form-data">
<input type="submit" name="discuss" value="Post Discussion" />
<input type="submit" name="anondiscuss" value="Post Anonymous Discussion" />
<input type="hidden" name="symb" value="$ressymb" />
<input type="hidden" name="sendit" value="true" />
<br />
<font size="1">Note: in anonymous discussion, your name is visible only to
course faculty</font><br />
<b>Title:</b> <input type="text" name="subject" value="" size="30" /><br /><br />
<textarea name="comment" cols="60" rows="10" wrap="hard"></textarea>
<p>
Attachment (128 KB max size): <input type="file" name="attachment" />
</p>
</form>
ENDDISCUSS
$discussion.=&generate_preview_button();
} else {
if (&Apache::lonnet::allowed('pch',
$ENV{'request.course.id'}.
($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
$discussion.='<table bgcolor="#BBBBBB"><tr><td><a href="/adm/feedback?replydisc='.
$symb.':::" '.$target.'>'.
'<img src="/adm/lonMisc/chat.gif" border="0" />'.
&mt('Post Discussion').'</a></td></tr></table>';
}
}
return $discussion;
}
sub mail_screen {
my ($r,$feedurl,$options) = @_;
my $bodytag=&Apache::loncommon::bodytag('Resource Feedback and Discussion',
'','onLoad="window.focus();"');
my $title=&Apache::lonnet::gettitle($feedurl);
if (!$title) { $title = $feedurl; }
my $quote='';
my $subject = '';
my $prevtag = '';
if ($ENV{'form.replydisc'}) {
my ($symb,$idx)=split(/\:\:\:/,$ENV{'form.replydisc'});
my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
unless (($contrib{'hidden'}=~/\.$idx\./) || ($contrib{'deleted'}=~/\.$idx\./)) {
my $message=$contrib{$idx.':message'};
$message=~s/\n/\<br \/\>/g;
$quote='<blockquote>'.&Apache::lontexconvert::msgtexconverted($message).'</blockquote>';
if ($idx > 0) {
$subject = 'Re: '.$contrib{$idx.':subject'};
}
}
if ($ENV{'form.previous'}) {
$prevtag = '<input type="hidden" name="previous" value="'.$ENV{'form.previous'}.'" />';
}
}
my $latexHelp = Apache::loncommon::helpLatexCheatsheet();
my $send=&mt('Send');
$r->print(<<ENDDOCUMENT);
<html>
<head>
<title>The LearningOnline Network with CAPA</title>
<meta http-equiv="pragma" content="no-cache"></meta>
<script type="text/javascript">
//<!--
function gosubmit() {
var rec=0;
if (typeof(document.mailform.elements.author)!="undefined") {
if (document.mailform.elements.author.checked) {
rec=1;
}
}
if (typeof(document.mailform.elements.question)!="undefined") {
if (document.mailform.elements.question.checked) {
rec=1;
}
}
if (typeof(document.mailform.elements.course)!="undefined") {
if (document.mailform.elements.course.checked) {
rec=1;
}
}
if (typeof(document.mailform.elements.policy)!="undefined") {
if (document.mailform.elements.policy.checked) {
rec=1;
}
}
if (typeof(document.mailform.elements.discuss)!="undefined") {
if (document.mailform.elements.discuss.checked) {
rec=1;
}
}
if (typeof(document.mailform.elements.anondiscuss)!="undefined") {
if (document.mailform.elements.anondiscuss.checked) {
rec=1;
}
}
if (rec) {
document.mailform.submit();
} else {
alert('Please check a feedback type.');
}
}
//-->
</script>
</head>
$bodytag
<h2><tt>$title</tt></h2>
<form action="/adm/feedback" method="post" name="mailform"
enctype="multipart/form-data">
$prevtag
<input type="hidden" name="postdata" value="$feedurl" />
<input type="hidden" name="replydisc" value="$ENV{'form.replydisc'}" />
Please check at least one of the following feedback types:
$options<hr />
$quote
<p>My question/comment/feedback:</p>
<p>
$latexHelp
Title: <input type="text" name="subject" size="30" value="$subject" /></p>
<p>
<textarea name="comment" cols="60" rows="10" wrap="hard">
</textarea></p>
<p>
Attachment (128 KB max size): <input type="file" name="attachment" />
</p>
<p>
<input type="hidden" name="sendit" value="1" />
<input type="button" value="$send" onClick='gosubmit();' />
</p>
</form>
ENDDOCUMENT
$r->print(&generate_preview_button().'</body></html>');
}
sub fail_redirect {
my ($r,$feedurl) = @_;
if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
$r->print (<<ENDFAILREDIR);
<html>
<head><title>Feedback not sent</title>
<meta http-equiv="pragma" content="no-cache" />
<meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
</head>
<body bgcolor="#FFFFFF">
<img align="right" src="/adm/lonIcons/lonlogos.gif" />
<b>Sorry, no recipients ...</b>
</body>
</html>
ENDFAILREDIR
}
sub redirect_back {
my ($r,$feedurl,$typestyle,$sendsomething,$sendposts,$status,$previous) = @_;
my $prevtag = '';
my $qrystr = '';
if ($feedurl=~/^\/adm\//) { $feedurl.='?register=1' };
if ($previous > 0) {
$qrystr = 'previous='.$previous;
if ($feedurl =~ /\?register=1/) {
$feedurl .= '&'.$qrystr;
} else {
$feedurl .= '?'.$qrystr;
}
$prevtag = '<input type="hidden" name="previous" value="'.$previous.'" />';
}
$r->print (<<ENDREDIR);
<html>
<head>
<title>Feedback sent</title>
<meta http-equiv="pragma" content="no-cache" />
<meta HTTP-EQUIV="Refresh" CONTENT="2; url=$feedurl" />
</head>
<body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { this.document.reldt.submit(); self.close(); }'>
<img align="right" src="/adm/lonIcons/lonlogos.gif" />
$typestyle
<b>Sent $sendsomething message(s), and $sendposts post(s).</b>
<font color="red">$status</font>
<form name="reldt" action="$feedurl" target="loncapaclient">
$prevtag
</form>
</body>
</html>
ENDREDIR
}
sub no_redirect_back {
my ($r,$feedurl) = @_;
$r->print (<<ENDNOREDIR);
<html>
<head><title>Feedback not sent</title>
<meta http-equiv="pragma" content="no-cache" />
ENDNOREDIR
if ($feedurl!~/^\/adm\/feedback/) {
$r->print('<meta HTTP-EQUIV="Refresh" CONTENT="2; url='.$feedurl.'">');
}
$r->print (<<ENDNOREDIRTWO);
</head>
<body bgcolor="#FFFFFF" onLoad='if (window.name!="loncapaclient") { self.close(); }'>
<img align="right" src="/adm/lonIcons/lonlogos.gif" />
<b>Sorry, no feedback possible on this resource ...</b>
</body>
</html>
ENDNOREDIRTWO
}
sub screen_header {
my ($feedurl) = @_;
my $msgoptions='';
my $discussoptions='';
unless ($ENV{'form.replydisc'}) {
if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) {
$msgoptions=
'<p><input type="checkbox" name="author" /> '.
&mt('Feedback to resource author').'</p>';
}
if (&feedback_available(1)) {
$msgoptions.=
'<br /><input type="checkbox" name="question" /> '.
&mt('Question about resource content');
}
if (&feedback_available(0,1)) {
$msgoptions.=
'<br /><input type="checkbox" name="course" /> '.
&mt('Question/Comment/Feedback about course content');
}
if (&feedback_available(0,0,1)) {
$msgoptions.=
'<br /><input type="checkbox" name="policy" /> '.
&mt('Question/Comment/Feedback about course policy');
}
}
if ($ENV{'request.course.id'}) {
if (&Apache::lonnet::allowed('pch',
$ENV{'request.course.id'}.
($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
$discussoptions='<input type="checkbox" name="discuss" onClick="this.form.anondiscuss.checked=false;" '.
($ENV{'form.replydisc'}?' checked="1"':'').' /> '.
&mt('Contribution to course discussion of resource');
$discussoptions.='<br /><input type="checkbox" name="anondiscuss" onClick="this.form.discuss.checked=false;" /> '.
&mt('Anonymous contribution to course discussion of resource').
' <i>('.&mt('name only visible to course faculty').')</i>';
}
}
if ($msgoptions) { $msgoptions='<h2><img src="/adm/lonMisc/feedback.gif" />'.&mt('Sending Messages').'</h2>'.$msgoptions; }
if ($discussoptions) {
$discussoptions='<h2><img src="/adm/lonMisc/chat.gif" />'.&mt('Discussion Contributions').'</h2>'.$discussoptions; }
return $msgoptions.$discussoptions;
}
sub resource_output {
my ($feedurl) = @_;
my $usersaw=&Apache::lonnet::ssi_body($feedurl);
$usersaw=~s/\<body[^\>]*\>//gi;
$usersaw=~s/\<\/body\>//gi;
$usersaw=~s/\<html\>//gi;
$usersaw=~s/\<\/html\>//gi;
$usersaw=~s/\<head\>//gi;
$usersaw=~s/\<\/head\>//gi;
$usersaw=~s/action\s*\=/would_be_action\=/gi;
return $usersaw;
}
sub clear_out_html {
my ($message,$override)=@_;
my $cid=$ENV{'request.course.id'};
if (($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) ||
($override)) {
# allows <B> <I> <P> <A> <LI> <OL> <UL> <EM> <BR> <TT> <STRONG>
# <BLOCKQUOTE> <DIV .*> <DIV> <IMG>
my %html=(B=>1, I=>1, P=>1, A=>1, LI=>1, OL=>1, UL=>1, EM=>1,
BR=>1, TT=>1, STRONG=>1, BLOCKQUOTE=>1, DIV=>1, IMG=>1,
M=>1);
$message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/
{($html{uc($2)}&&(length($1)<1000))?"\<$1":"\<$1"}/ge;
$message =~ s/(\<?\s*(\w+)[^\<\>]*)\>/
{($html{uc($2)}&&(length($1)<1000))?"$1\>":"$1\>"}/ge;
} else {
$message=~s/\</\<\;/g;
$message=~s/\>/\>\;/g;
}
return $message;
}
sub assemble_email {
my ($feedurl,$message,$prevattempts,$usersaw,$useranswer)=@_;
my $email=<<"ENDEMAIL";
Refers to <a href="$feedurl">$feedurl</a>
$message
ENDEMAIL
my $citations=<<"ENDCITE";
<h2>Previous attempts of student (if applicable)</h2>
$prevattempts
<br /><hr />
<h2>Original screen output (if applicable)</h2>
$usersaw
<h2>Correct Answer(s) (if applicable)</h2>
$useranswer
ENDCITE
return ($email,$citations);
}
sub secapply {
my $rec=shift;
my $defaultflag=shift;
$rec=~s/\s+//g;
$rec=~s/\@/\:/g;
my ($adr,$sections)=($rec=~/^([^\(]+)\(([^\)]+)\)/);
if ($sections) {
foreach (split(/\;/,$sections)) {
if (($_ eq $ENV{'request.course.sec'}) ||
($defaultflag && ($_ eq '*'))) {
return $adr;
}
}
} else {
return $rec;
}
return '';
}
sub decide_receiver {
my ($feedurl,$author,$question,$course,$policy,$defaultflag) = @_;
my $typestyle='';
my %to=();
if ($ENV{'form.author'}||$author) {
$typestyle.='Submitting as Author Feedback<br>';
$feedurl=~/^\/res\/(\w+)\/(\w+)\//;
$to{$2.':'.$1}=1;
}
if ($ENV{'form.question'}||$question) {
$typestyle.='Submitting as Question<br>';
foreach (split(/\,/,
$ENV{'course.'.$ENV{'request.course.id'}.'.question.email'})
) {
my $rec=&secapply($_,$defaultflag);
if ($rec) { $to{$rec}=1; }
}
}
if ($ENV{'form.course'}||$course) {
$typestyle.='Submitting as Comment<br />';
foreach (split(/\,/,
$ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'})
) {
my $rec=&secapply($_,$defaultflag);
if ($rec) { $to{$rec}=1; }
}
}
if ($ENV{'form.policy'}||$policy) {
$typestyle.='Submitting as Policy Feedback<br />';
foreach (split(/\,/,
$ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'})
) {
my $rec=&secapply($_,$defaultflag);
if ($rec) { $to{$rec}=1; }
}
}
if ((scalar(%to) eq '0') && (!$defaultflag)) {
($typestyle,%to)=
&decide_receiver($feedurl,$author,$question,$course,$policy,1);
}
return ($typestyle,%to);
}
sub feedback_available {
my ($question,$course,$policy)=@_;
my ($typestyle,%to)=&decide_receiver('',0,$question,$course,$policy);
return scalar(%to);
}
sub send_msg {
my ($feedurl,$email,$citations,$attachmenturl,%to)=@_;
my $status='';
my $sendsomething=0;
foreach (keys %to) {
if ($_) {
my $declutter=&Apache::lonnet::declutter($feedurl);
unless (&Apache::lonmsg::user_normal_msg(split(/\:/,$_),
'Feedback ['.$declutter.']',$email,$citations,$feedurl,
$attachmenturl)=~/ok/) {
$status.='<br />'.&mt('Error sending message to').' '.$_.'<br />';
} else {
$sendsomething++;
}
}
}
my %record=&Apache::lonnet::restore('_feedback');
my ($temp)=keys %record;
unless ($temp=~/^error\:/) {
my %newrecord=();
$newrecord{'resource'}=$feedurl;
$newrecord{'subnumber'}=$record{'subnumber'}+1;
unless (&Apache::lonnet::cstore(\%newrecord,'_feedback') eq 'ok') {
$status.='<br />'.&mt('Not registered').'<br />';
}
}
return ($status,$sendsomething);
}
sub adddiscuss {
my ($symb,$email,$anon,$attachmenturl,$subject)=@_;
my $status='';
if (&Apache::lonnet::allowed('pch',$ENV{'request.course.id'}.
($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) {
my %contrib=('message' => $email,
'sendername' => $ENV{'user.name'},
'senderdomain' => $ENV{'user.domain'},
'screenname' => $ENV{'environment.screenname'},
'plainname' => $ENV{'environment.firstname'}.' '.
$ENV{'environment.middlename'}.' '.
$ENV{'environment.lastname'}.' '.
$ENV{'enrironment.generation'},
'attachmenturl'=> $attachmenturl,
'subject' => $subject);
if ($ENV{'form.replydisc'}) {
$contrib{'replyto'}=(split(/\:\:\:/,$ENV{'form.replydisc'}))[1];
}
if ($anon) {
$contrib{'anonymous'}='true';
}
if (($symb) && ($email)) {
$status='Adding to class discussion'.($anon?' (anonymous)':'').': '.
&Apache::lonnet::store(\%contrib,$symb,$ENV{'request.course.id'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
my %storenewentry=($symb => time);
$status.='<br />'.&mt('Updating discussion time').': '.
&Apache::lonnet::put('discussiontimes',\%storenewentry,
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
}
my %record=&Apache::lonnet::restore('_discussion');
my ($temp)=keys %record;
unless ($temp=~/^error\:/) {
my %newrecord=();
$newrecord{'resource'}=$symb;
$newrecord{'subnumber'}=$record{'subnumber'}+1;
$status.='<br />'.&mt('Registering').': '.
&Apache::lonnet::cstore(\%newrecord,'_discussion');
}
} else {
$status.='Failed.';
}
return $status.'<br />';
}
# ----------------------------------------------------------- Preview function
sub show_preview {
my $r=shift;
my $message=&clear_out_html($ENV{'form.comment'});
$message=~s/\n/\<br \/\>/g;
$message=&Apache::lontexconvert::msgtexconverted($message);
my $subject=&clear_out_html($ENV{'form.subject'});
$subject=~s/\n/\<br \/\>/g;
$subject=&Apache::lontexconvert::msgtexconverted($subject);
$r->print('<table border="2"><tr><td>'.
'<b>Subject:</b> '.$subject.'<br /><br />'.
$message.'</td></tr></table>');
}
sub generate_preview_button {
my $pre=&mt("Show Preview");
return(<<ENDPREVIEW);
<form name="preview" action="/adm/feedback?preview=1" method="post" target="preview">
<input type="hidden" name="subject">
<input type="hidden" name="comment" />
<input type="button" value="$pre"
onClick="this.form.comment.value=document.mailform.comment.value;this.form.subject.value=document.mailform.subject.value;this.form.submit();" />
</form>
ENDPREVIEW
}
sub handler {
my $r = shift;
if ($r->header_only) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
return OK;
}
# --------------------------- Get query string for limited number of parameters
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'},
['hide','unhide','deldisc','postdata','preview','replydisc','threadedon','threadedoff','onlyunread','allposts','previous']);
if (($ENV{'form.allposts'}) || ($ENV{'form.onlyunread'})) {
# ----------------------------------------------------------------- Modify display setting for this discussion
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
my $symb=$ENV{'form.allposts'}?$ENV{'form.allposts'}:$ENV{'form.onlyunread'};
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
my %readinghash = ();
if ($contrib{'version'}) {
if ($ENV{'form.allposts'}) {
$readinghash{$symb.'_showonlyunread'} = 0;
} elsif ($ENV{'form.onlyunread'}) {
$readinghash{$symb.'_showonlyunread'} = 1;
}
&Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%readinghash,$ENV{'user.domain'},$ENV{'user.name'});
}
&redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed reading status').'<br />','0','0','',$ENV{'form.previous'});
return OK;
} elsif (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) {
# ----------------------------------------------------------------- Hide/unhide
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
my $entry=$ENV{'form.hide'}?$ENV{'form.hide'}:$ENV{'form.unhide'};
my ($symb,$idx)=split(/\:\:\:/,$entry);
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
my $currenthidden=$contrib{'hidden'};
if ($ENV{'form.hide'}) {
$currenthidden.='.'.$idx.'.';
} else {
$currenthidden=~s/\.$idx\.//g;
}
my %newhash=('hidden' => $currenthidden);
&Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
&redirect_back($r,&Apache::lonnet::clutter($url),
&mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
} elsif (($ENV{'form.threadedon'}) || ($ENV{'form.threadedoff'})) {
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
if ($ENV{'form.threadedon'}) {
&Apache::lonnet::put('environment',{'threadeddiscussion' => 'on'});
&Apache::lonnet::appenv('environment.threadeddiscussion' => 'on');
} else {
&Apache::lonnet::del('environment',['threadeddiscussion']);
&Apache::lonnet::delenv('environment\.threadeddiscussion');
}
my $symb=$ENV{'form.threadedon'}?$ENV{'form.threadedon'}:$ENV{'form.threadedoff'};
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
&redirect_back($r,&Apache::lonnet::clutter($url),
&mt('Changed discussion view mode').'<br />','0','0','',$ENV{'form.previous'});
} elsif ($ENV{'form.deldisc'}) {
# --------------------------------------------------------------- Hide for good
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
my $entry=$ENV{'form.deldisc'};
my ($symb,$idx)=split(/\:\:\:/,$entry);
my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb);
my %contrib=&Apache::lonnet::restore($symb,$ENV{'request.course.id'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
my $currentdeleted=$contrib{'deleted'};
$currentdeleted.='.'.$idx.'.';
my %newhash=('deleted' => $currentdeleted);
&Apache::lonnet::store(\%newhash,$symb,$ENV{'request.course.id'},
$ENV{'course.'.$ENV{'request.course.id'}.'.domain'},
$ENV{'course.'.$ENV{'request.course.id'}.'.num'});
&redirect_back($r,&Apache::lonnet::clutter($url),
&mt('Changed discussion status').'<br />','0','0','',$ENV{'form.previous'});
} elsif ($ENV{'form.preview'}) {
# -------------------------------------------------------- User wants a preview
$r->content_type('text/html');
$r->send_http_header;
&show_preview($r);
} else {
# ------------------------------------------------------------- Normal feedback
my $feedurl=$ENV{'form.postdata'};
$feedurl=~s/^http\:\/\///;
$feedurl=~s/^$ENV{'SERVER_NAME'}//;
$feedurl=~s/^$ENV{'HTTP_HOST'}//;
$feedurl=~s/\?.+$//;
my $symb;
if ($ENV{'form.replydisc'}) {
$symb=(split(/\:\:\:/,$ENV{'form.replydisc'}))[0];
my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
$feedurl=&Apache::lonnet::clutter($url);
} else {
$symb=&Apache::lonnet::symbread($feedurl);
}
unless ($symb) {
$symb=$ENV{'form.symb'};
if ($symb) {
my ($map,$id,$url)=&Apache::lonnet::decode_symb($symb);
$feedurl=&Apache::lonnet::clutter($url);
}
}
my $goahead=1;
if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) {
unless ($symb) { $goahead=0; }
}
# backward compatibility (bulltin boards used to be 'wrapped')
if ($feedurl=~m|^/adm/wrapper/adm/.*/bulletinboard$|) {
$feedurl=~s|^/adm/wrapper||;
}
if ($goahead) {
# Go ahead with feedback, no ambiguous reference
&Apache::loncommon::content_type($r,'text/html');
$r->send_http_header;
if (
(
($feedurl=~m:^/res:) && ($feedurl!~m:^/res/adm:)
)
||
($ENV{'request.course.id'} && ($feedurl!~m:^/adm:))
||
($ENV{'request.course.id'} && ($symb=~/^bulletin\_\_\_/))
) {
# --------------------------------------------------- Print login screen header
unless ($ENV{'form.sendit'}) {
my $options=&screen_header($feedurl);
if ($options) {
&mail_screen($r,$feedurl,$options);
} else {
&fail_redirect($r,$feedurl);
}
} else {
# Get previous user input
my $prevattempts=&Apache::loncommon::get_previous_attempt(
$symb,$ENV{'user.name'},$ENV{'user.domain'},
$ENV{'request.course.id'});
# Get output from resource
my $usersaw=&resource_output($feedurl);
# Get resource answer (need to allow student to view grades for this to work)
&Apache::lonnet::appenv(('allowed.vgr'=>'F'));
my $useranswer=&Apache::loncommon::get_student_answers(
$symb,$ENV{'user.name'},$ENV{'user.domain'},
$ENV{'request.course.id'});
&Apache::lonnet::delenv('allowed.vgr');
# Get attachments, if any, and not too large
my $attachmenturl='';
if ($ENV{'form.attachment.filename'}) {
unless (length($ENV{'form.attachment'})>131072) {
$attachmenturl=&Apache::lonnet::userfileupload('attachment');
}
}
# Filter HTML out of message (could be nasty)
my $message=&clear_out_html($ENV{'form.comment'});
# Assemble email
my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts,
$usersaw,$useranswer);
# Who gets this?
my ($typestyle,%to) = &decide_receiver($feedurl);
# Actually send mail
my ($status,$numsent)=&send_msg($feedurl,$email,$citations,
$attachmenturl,%to);
# Discussion? Store that.
my $numpost=0;
if ($ENV{'form.discuss'}) {
my $subject = &clear_out_html($ENV{'form.subject'});
$typestyle.=&adddiscuss($symb,$message,0,$attachmenturl,$subject);
$numpost++;
}
if ($ENV{'form.anondiscuss'}) {
my $subject = &clear_out_html($ENV{'form.subject'});
$typestyle.=&adddiscuss($symb,$message,1,$attachmenturl,$subject);
$numpost++;
}
# Receipt screen and redirect back to where came from
&redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status,$ENV{'form.previous'});
}
} else {
# Unable to give feedback
&no_redirect_back($r,$feedurl);
}
} else {
# Ambiguous Problem Resource
if ( &Apache::lonnet::mod_perl_version() == 2 ) {
&Apache::lonnet::cleanenv();
}
$r->internal_redirect('/adm/ambiguous');
}
}
return OK;
}
1;
__END__
FreeBSD-CVSweb <freebsd-cvsweb@FreeBSD.org>