--- loncom/interface/lonfeedback.pm 2001/01/03 16:20:59 1.1 +++ loncom/interface/lonfeedback.pm 2004/06/01 21:40:57 1.85 @@ -1,40 +1,1169 @@ # The LearningOnline Network # Feedback # -# (Internal Server Error Handler +# $Id: lonfeedback.pm,v 1.85 2004/06/01 21:40:57 www Exp $ # -# (Login Screen -# 5/21/99,5/22,5/25,5/26,5/31,6/2,6/10,7/12,7/14, -# 1/14/00,5/29,5/30,6/1,6/29,7/1,11/9 Gerd Kortemeyer) +# Copyright Michigan State University Board of Trustees # -# 3/1/1 Gerd Kortemeyer) +# This file is part of the LearningOnline Network with CAPA (LON-CAPA). # -# 3/1 Gerd Kortemeyer +# 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 handler { - my $r = shift; - $r->content_type('text/html'); - $r->send_http_header; - return OK if $r->header_only; +sub list_discussion { + my ($mode,$status,$symb)=@_; +# &Apache::lonnet::logthis("status is $status"); + if (!($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER' + || $status eq 'OPEN')) { + return ''; + } -# --------------------------------------------------- Print login screen header - $r->print(<<ENDDOCUMENT); + my @bgcols = ("#cccccc","#eeeeee"); + 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 $ondispkey = $ressymb.'_markondisp'; + my %dischash = &Apache::lonnet::get('nohist_'.$ENV{'request.course.id'}.'_discuss',[$lastkey,$showkey,$visitkey,$ondispkey],$ENV{'user.domain'},$ENV{'user.name'}); + my %discinfo = (); + my $showonlyunread = 0; + my $markondisp = 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{$lastkey})) { + unless ($dischash{$lastkey} eq '') { + $prevread = $dischash{$lastkey}; + } + } + +# Get discussion display default settings for user + my %userenv = &Apache::lonnet::get('environment',['discdisplay','discmarkread'],$ENV{'user.domain'},$ENV{'user.name'}); + my $discdisplay=$userenv{'discdisplay'}; + if ($discdisplay eq 'unread') { + $showonlyunread = 1; + } + my $discmarkread=$userenv{'discmarkread'}; + if ($discmarkread eq 'ondisp') { + $markondisp = 1; + } + +# Override user's default if user specified display setting for this discussion + if (defined($dischash{$ondispkey})) { + $markondisp = $dischash{$ondispkey}; + } + if ($markondisp) { + $discinfo{$lastkey} = time; + } + + 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 %newitem = (); + my $maxdepth=0; + + my $target=''; + unless ($ENV{'browser.interface'} eq 'textual' || + $ENV{'environment.remote'} eq 'off' ) { + $target='target="LONcom"'; + } + + my $now = time; + $discinfo{$visitkey} = $visit; + + &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'}); + + if ($contrib{'version'}) { + my $oldest = $contrib{'1:timestamp'}; + if ($prevread eq '0') { + $prevread = $oldest-1; + } + for (my $id=1;$id<=$contrib{'version'};$id++) { + my $idx=$id; + my $posttime = $contrib{$idx.':timestamp'}; + if ($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 ($fname) + =($contrib{$idx.':attachmenturl'}=~m|/([^/]+)$|); + &Apache::lonnet::allowuploaded('/adm/feedback', + $contrib{$idx.':attachmenturl'}); + $message.='<p>'.&mt('Attachment'). + ': <a href="'.$contrib{$idx.':attachmenturl'}.'"><tt>'. + $fname.'</tt></a></p>'; + } + if ($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 { + if ($prevread > 0 && $prevread <= $posttime) { + $newitem{$idx} = 1; + $discussionitems[$idx] .= ' + <p><table border="0" width="100%"> + <tr><td align="left"><font color="#FF0000"><b>NEW</b></font></td>'; + } else { + $newitem{$idx} = 0; + $discussionitems[$idx] .= ' + <p><table border="0" width="100%"> + <tr><td align="left"> </td>'; + } + $discussionitems[$idx] .= '<td align ="left"> '. + '<b>'.$subject.'</b> '. + $sender.'</b> '.$vgrlink.' ('. + localtime($posttime).')</td></tr>'. + '</table><blockquote>'.$message.'</blockquote></p>'; + } + } + } + } + } + + my $discussion=''; + + my $function = &Apache::loncommon::get_users_function(); + my $color = &Apache::loncommon::designparm($function.'.tabbg', + $ENV{'user.domain'}); + my %lt = &Apache::lonlocal::texthash( + 'cuse' => 'Current settings for this discussion', + 'allposts' => 'All posts', + 'unread' => 'New posts only', + 'ondisp' => 'Once displayed', + 'onmark' => 'Once marked read', + 'disa' => 'Posts to be displayed', + 'npce' => 'Posts cease to be marked "NEW"', + 'chgt' => 'Change to ', + ); + + my $currdisp = $lt{'allposts'}; + my $currmark = $lt{'onmark'}; + my $dispchange = $lt{'unread'}; + my $markchange = $lt{'ondisp'}; + my $displink = '/adm/feedback?onlyunread='.$ressymb; + my $marklink = '/adm/feedback?markondisp='.$ressymb; + + if ($markondisp) { + $currmark = $lt{'ondisp'}; + $markchange = $lt{'onmark'}; + $marklink = '/adm/feedback?markonread='.$ressymb; + if ($newpostsflag) { + $marklink .= '&previous='.$prevread; + } + } + + if ($showonlyunread) { + $currdisp = $lt{'unread'}; + $dispchange = $lt{'allposts'}; + $displink = '/adm/feedback?allposts='.$ressymb; + } + + if ($newpostsflag) { + $displink .= '&previous='.$prevread; + } + + if ($visible) { +# Print the discusssion + $discussion.='<table bgcolor="#AAAAAA" cellpadding="2" cellspacing="2" border="0">'; + my $colspan=$maxdepth+1; + $discussion .= '<tr bgcolor="#FFFFFF"><td colspan="'.$colspan.'" valign="top">'. + '<table border="0" bgcolor="#FFFFFF" width="100%" cellspacing="2" cellpadding="2">'. + '<tr><td align="left"><b>'.$lt{'cuse'}.'</b></td><td> </td><td align="right"><b>'.$lt{'chgt'}.'</b></td></tr>'. + '<tr><td>'.$lt{'disa'}.': <i>'.$currdisp.'</i></td><td> </td><td align="right"><a href="'.$displink.'">'.$dispchange.'</a></td></tr>'. + '<tr><td>'.$lt{'npce'}.': <i>'.$currmark.'</i></td><td> </td><td align="right"><a href="'.$marklink.'">'.$markchange.'</a></td></tr>'. + '</table></td></tr>'. + '<tr><td bgcolor="#DDDDBB" colspan="'.$colspan.'">'. + '<table border="0" width="100%" bgcolor="#DDDDBB"><tr>'; + if ($visible>2) { + $discussion.='<td align="left">'. + '<a href="/adm/feedback?threadedon='.$ressymb; + if ($newpostsflag) { + $discussion .= '&previous='.$prevread; + } + $discussion .='">'.&mt('Threaded View').'</a> '. + '<a href="/adm/feedback?threadedoff='.$ressymb; + if ($newpostsflag) { + $discussion .= '&previous='.$prevread; + } + $discussion .='">'.&mt('Chronological View').'</a> </td>'; + } + if ($newpostsflag) { + if (!$markondisp) { + $discussion .='<td align="right"><a href="/adm/feedback?markread='.$ressymb.'">'.&mt('Mark new posts as read').'</a> '; + } else { + $discussion .= '<td> </td>'; + } + } else { + $discussion .= '<td> </td>'; + } + $discussion .= '</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; + $discussion.='<td bgcolor="'.$bgcols[$newitem{$alldiscussion{$_}}].'" colspan="'.$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 $htmlheader=&Apache::lonhtmlcommon::htmlareaheaders(); + my $send=&mt('Send'); + $r->print(<<ENDDOCUMENT); <html> <head> <title>The LearningOnline Network with CAPA</title> +<meta http-equiv="pragma" content="no-cache"></meta> +$htmlheader +<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 +$r->print(&generate_preview_button(). +&Apache::lonhtmlcommon::htmlareaactive(). +'</body></html>'); +} + +sub fail_redirect { + my ($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"> -<h1>Feedback</h1> -<img src="/adm/lonKaputt/lonconstruct.gif"> +<img align="right" src="/adm/lonIcons/lonlogos.gif" /> +<b>Sorry, no recipients ...</b> </body> </html> -ENDDOCUMENT - return OK; +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','markread','markonread','markondisp']); + + if (($ENV{'form.markondisp'}) || ($ENV{'form.markonread'})) { +# ---------------------- Modify setting for identification of 'NEW' posts in this discussion + + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + my $symb=$ENV{'form.markondisp'}?$ENV{'form.markondisp'}:$ENV{'form.markonread'}; + my $ressymb = $symb; + my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); + unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) { + $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|; + } + + my %discinfo = (); + my $lastkey = $ressymb.'_lastread'; + my $ondispkey = $ressymb.'_markondisp'; + if ($ENV{'form.markondisp'}) { + $discinfo{$lastkey} = time; + $discinfo{$ondispkey} = 1; + } elsif ($ENV{'form.markonread'}) { + if ( defined($ENV{'previous'}) ) { + $discinfo{$lastkey} = $ENV{'previous'}; + } + $discinfo{$ondispkey} = 0; + } + &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'}); + if ($ENV{'form.markondisp'}) { + &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0'); + } else { + &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$ENV{'form.previous'}); + } + return OK; + } elsif (($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 $ressymb = $symb; + my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); + unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) { + $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|; + } + my %discinfo = (); + if ($ENV{'form.allposts'}) { + $discinfo{$ressymb.'_showonlyunread'} = 0; + } elsif ($ENV{'form.onlyunread'}) { + $discinfo{$ressymb.'_showonlyunread'} = 1; + } + &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'}); + &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed display status').'<br />','0','0','',$ENV{'form.previous'}); + return OK; + } elsif ($ENV{'form.markread'}) { +# ----------------------------------------------------------------- Mark new posts as read + &Apache::loncommon::content_type($r,'text/html'); + $r->send_http_header; + my $symb=$ENV{'form.markread'}; + my $ressymb = $symb; + my ($map,$ind,$url)=&Apache::lonnet::decode_symb($symb); + unless ($ressymb =~ m|bulletin___\d+___adm/wrapper|) { + $ressymb=~s|(bulletin___\d+___)|$1adm/wrapper|; + } + my %discinfo = (); + my $lastkey = $ressymb.'_lastread'; + $discinfo{$lastkey} = time; + &Apache::lonnet::put('nohist_'.$ENV{'request.course.id'}.'_discuss',\%discinfo,$ENV{'user.domain'},$ENV{'user.name'}); + &redirect_back($r,&Apache::lonnet::clutter($url),&mt('Changed reading status').'<br />','0','0'); + return OK; + } elsif (($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',undef,'feedback'); + } + } +# 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;