--- loncom/interface/lonfeedback.pm 2001/02/08 21:35:24 1.5 +++ loncom/interface/lonfeedback.pm 2002/10/28 23:28:52 1.37 @@ -1,6 +1,30 @@ # The LearningOnline Network # Feedback # +# $Id: lonfeedback.pm,v 1.37 2002/10/28 23:28:52 albertel 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/ +# # (Internal Server Error Handler # # (Login Screen @@ -10,75 +34,66 @@ # 3/1/1 Gerd Kortemeyer) # # 3/1,2/3,2/5,2/6,2/8 Gerd Kortemeyer +# 2/9 Guy Albertelli +# 2/10 Gerd Kortemeyer +# 2/13 Guy Albertelli +# 7/25 Gerd Kortemeyer +# 7/26 Guy Albertelli +# 7/26,8/10,10/1,11/5,11/6,12/27,12/29 Gerd Kortemeyer +# YEAR=2002 +# 1/1,1/16 Gerd Kortemeyer # + package Apache::lonfeedback; use strict; use Apache::Constants qw(:common); use Apache::lonmsg(); +use Apache::loncommon(); +use Apache::lontexconvert(); -sub handler { - my $r = shift; - $r->content_type('text/html'); - $r->send_http_header; - return OK if $r->header_only; - - my $feedurl=$ENV{'form.postdata'}; - $feedurl=~s/^http\:\/\///; - $feedurl=~s/^$ENV{'SERVER_NAME'}//; - $feedurl=~s/^$ENV{'HTTP_HOST'}//; - - if ((($feedurl=~/^\/res/) && ($feedurl!~/^\/res\/adm/)) - || ($ENV{'request.course.id'})) { -# --------------------------------------------------- Print login screen header - unless ($ENV{'form.sendit'}) { - my $options=''; - if (($feedurl=~/^\/res/) && ($feedurl!~/^\/res\/adm/)) { - $options= - '

Feedback to resource author'; - } - if ($ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) { - $options.= - '
Question about resource content'; - } - if ($ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) { - $options.= - '
'. - 'Question/Comment/Feedback about course content'; - } - if ($ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) { - $options.= - '
'. - 'Question/Comment/Feedback about course policy'; - } - if ($options) { - $r->print(<print(< The LearningOnline Network with CAPA + - - -

Feedback

+$bodytag

$feedurl

Please check at least one of the following feedback types: $options
My question/comment/feedback:

-

- - ENDDOCUMENT -} else { - print (<print(&generate_preview_button().''); +} + +sub fail_redirect { + my ($r,$feedurl) = @_; + $r->print (<Feedback not sent + -Sorry, no recipients ... + +Sorry, no recipients ... ENDFAILREDIR - } -} else { -# -# Get previous user input -# - my $symb=&Apache::lonnet::symbread($feedurl); - my $prevattempts=''; - if ($symb) { - my $answer=&Apache::lonnet::reply( - "restore:".$ENV{'user.domain'}.':'.$ENV{'user.name'}.':'. - $ENV{'request.course.id'}.':'. - &Apache::lonnet::escape($symb), - $ENV{'user.home'}); - my %returnhash=(); - map { - my ($name,$value)=split(/\=/,$_); - $returnhash{&Apache::lonnet::unescape($name)}= - &Apache::lonnet::unescape($value); - } split(/\&/,$answer); - my %lasthash=(); - my $version; - for ($version=1;$version<=$returnhash{'version'};$version++) { - map { - $lasthash{$_}=$returnhash{$version.':'.$_}; - } split(/\:/,$returnhash{$version.':keys'}); - } - $prevattempts=''; - map { - $prevattempts.=''; - } keys %lasthash; - for ($version=1;$version<=$returnhash{'version'};$version++) { - $prevattempts.=''; - map { - $prevattempts.=''; - } keys %lasthash; - } - $prevattempts.=''; - map { - $prevattempts.=''; - } keys %lasthash; - $prevattempts.='
History'.$_.'
Attempt '.$version.''.$returnhash{$version.':'.$_}.'
Current'.$lasthash{$_}.'
'; - } -# -# Get output from resource -# - my $usersaw=&Apache::lonnet::ssi($feedurl); - $usersaw=~s/\]*\>//gi; - $usersaw=~s/\<\/body\>//gi; - $usersaw=~s/\//gi; - $usersaw=~s/\<\/html\>//gi; - $usersaw=~s/\//gi; - $usersaw=~s/\<\/head\>//gi; - $usersaw=~s/action\s*\=/would_be_action\=/gi; -# -# Filter HTML out of message (could be nasty) -# - my $message=$ENV{'form.comment'}; - $message=~s/\/\>\;/g; -# -# Assemble email -# - my $email=<<"ENDEMAIL"; -Refers to $feedurl - -$message -ENDEMAIL - my $citations=<<"ENDCITE"; -

Previous attempts of student (if applicable)

-$prevattempts -

-

Original screen output (if applicable)

-$usersaw -ENDCITE -# -# Who gets this? -# - my $typestyle=''; - my %to=(); - if ($ENV{'form.author'}) { - $typestyle.='Author Feedback
'; - $feedurl=~/^\/res\/(\w+)\/(\w+)\//; - $to{$2.':'.$1}=1; - } - if ($ENV{'form.question'}) { - $typestyle.='Question
'; - map { - $to{$_}=1; - } split(/\,/, - $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}); - } - if ($ENV{'form.course'}) { - $typestyle.='Comment
'; - map { - $to{$_}=1; - } split(/\,/, - $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}); - } - if ($ENV{'form.policy'}) { - $typestyle.='Policy
'; - map { - $to{$_}=1; - } split(/\,/, - $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}); - } -# -# Actually send mail -# - my $status=''; - my $sendsomething=0; - map { - if ($_) { - unless ( - &Apache::lonmsg::user_normal_msg(split(/\:/,$_),'Feedback '.$feedurl, - $email,$citations) eq 'ok') { - $status.='
Error sending message to '.$_.'
'; - } else { - $sendsomething++; - } - } - } keys %to; -# -# Receipt screen and redirect back to where came from -# - print (<print (< Feedback sent + + $typestyle -Sent $sendsomething message(s). +Sent $sendsomething message(s), and $sendposts post(s). $status ENDREDIR } -} else { - print (<print (<Feedback not sent - + +ENDNOREDIR + + if ($feedurl!~/^\/adm\/feedback/) { + $r->print(''); + } + + $r->print (< -Sorry, no feedback possible on this resource ... + +Sorry, no feedback possible on this resource ... -ENDNOREDIR +ENDNOREDIRTWO } - return OK; -} -1; -__END__ +sub screen_header { + my ($feedurl) = @_; + my $options=''; + if (($feedurl=~/^\/res\//) && ($feedurl!~/^\/res\/adm/)) { + $options= + '

Feedback to resource author'; + } + if (&feedback_available(1)) { + $options.= + '
Question about resource content'; + } + if (&feedback_available(0,1)) { + $options.= + '
'. + 'Question/Comment/Feedback about course content'; + } + if (&feedback_available(0,0,1)) { + $options.= + '
'. + 'Question/Comment/Feedback about course policy'; + } + + if ($ENV{'request.course.id'}) { + if (&Apache::lonnet::allowed('pch', + $ENV{'request.course.id'}. + ($ENV{'request.course.sec'}?'/'.$ENV{'request.course.sec'}:''))) { + $options.='
'. + 'Contribution to course discussion of resource'; + $options.='
'. + 'Anonymous contribution to course discussion of resource'. + ' (name only visible to course faculty)'; + } + } + return $options; +} + +sub resource_output { + my ($feedurl) = @_; + my $usersaw=&Apache::lonnet::ssi($feedurl); + $usersaw=~s/\]*\>//gi; + $usersaw=~s/\<\/body\>//gi; + $usersaw=~s/\//gi; + $usersaw=~s/\<\/html\>//gi; + $usersaw=~s/\//gi; + $usersaw=~s/\<\/head\>//gi; + $usersaw=~s/action\s*\=/would_be_action\=/gi; + return $usersaw; +} + +sub clear_out_html { + my $message=$ENV{'form.comment'}; + my $cid=$ENV{'request.course.id'}; + if ($ENV{"course.$cid.allow_limited_html_in_feedback"} =~ m/yes/i) { + # allows


      • + #
        + 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); + + $message =~ s/\<(\/?\s*(\w+)[^\>\<]*)/ + {($html{uc($2)}&(length($1)<1000))?"\<$1":"\<$1"}/ge; + $message =~ s/(\]*)\>/ + {($html{uc($2)}&(length($1)<1000))?"$1\>":"$1\>"}/ge; + } else { + $message=~s/\<\/*m\s*\>//g; + $message=~s/\/\>\;/g; + } + return $message; +} + +sub assemble_email { + my ($feedurl,$message,$prevattempts,$usersaw)=@_; + my $email=<<"ENDEMAIL"; +Refers to $feedurl + +$message +ENDEMAIL + my $citations=<<"ENDCITE"; +

        Previous attempts of student (if applicable)

        +$prevattempts +

        +

        Original screen output (if applicable)

        +$usersaw +ENDCITE + return ($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
        '; + $feedurl=~/^\/res\/(\w+)\/(\w+)\//; + $to{$2.':'.$1}=1; + } + if ($ENV{'form.question'}||$question) { + $typestyle.='Submitting as Question
        '; + 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
        '; + 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
        '; + 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,%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)=~/ok/) { + $status.='
        Error sending message to '.$_.'
        '; + } 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') { + $status.='
        Not registered
        '; + } + } + + return ($status,$sendsomething); +} +sub adddiscuss { + my ($symb,$email,$anon)=@_; + 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'}.' '. + $ENV{'enrironment.generation'}); + if ($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.='
        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.='
        Registering: '. + &Apache::lonnet::cstore(\%newrecord,'_discussion'); + } + } else { + $status.='Failed.'; + } + return $status.'
        '; +} + +# ----------------------------------------------------------- Preview function + +sub show_preview { + my $r=shift; + my $message=&clear_out_html($ENV{'form.comment'}); + $message=~s/\n/\
        /g; + $message=&Apache::lontexconvert::msgtexconverted($message); + $r->print('
        '. + $message.'
        '); +} +sub generate_preview_button { + return(< + + + +ENDPREVIEW +} +sub handler { + my $r = shift; + if ($r->header_only) { + $r->content_type('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','postdata','preview']); + + if (($ENV{'form.hide'}) || ($ENV{'form.unhide'})) { +# ----------------------------------------------------------------- Hide/unhide + $r->content_type('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)=split(/\_\_\_/,$symb); + + my %contrib=&Apache::lonnet::restore($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), + 'Changed discussion status

        ','0','0'); + } elsif ($ENV{'form.preview'}) { +# -------------------------------------------------------- User wants a preview + &show_preview($r); + } else { +# ------------------------------------------------------------- Normal feedback + my $feedurl=$ENV{'form.postdata'}; + $feedurl=~s/^http\:\/\///; + $feedurl=~s/^$ENV{'SERVER_NAME'}//; + $feedurl=~s/^$ENV{'HTTP_HOST'}//; + + my $symb=&Apache::lonnet::symbread($feedurl); + unless ($symb) { + $symb=$ENV{'form.symb'}; + if ($symb) { + my ($map,$id,$url)=split(/\_\_\_/,$symb); + $feedurl=&Apache::lonnet::clutter($url); + } + } + my $goahead=1; + if ($feedurl=~/\.(problem|exam|quiz|assess|survey|form)$/) { + unless ($symb) { $goahead=0; } + } + + if ($goahead) { +# Go ahead with feedback, no ambiguous reference + $r->content_type('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); + +# Filter HTML out of message (could be nasty) + my $message=&clear_out_html; + +# Assemble email + my ($email,$citations)=&assemble_email($feedurl,$message,$prevattempts, + $usersaw); + +# Who gets this? + my ($typestyle,%to) = &decide_receiver($feedurl); + +# Actually send mail + my ($status,$numsent)=&send_msg($feedurl,$email,$citations,%to); + +# Discussion? Store that. + + my $numpost=0; + if ($ENV{'form.discuss'}) { + $typestyle.=&adddiscuss($symb,$message); + $numpost++; + } + + if ($ENV{'form.anondiscuss'}) { + $typestyle.=&adddiscuss($symb,$message,1); + $numpost++; + } + + +# Receipt screen and redirect back to where came from + &redirect_back($r,$feedurl,$typestyle,$numsent,$numpost,$status); + + } + } else { +# Unable to give feedback + &no_redirect_back($r,$feedurl); + } + } else { +# Ambiguous Problem Resource + $r->internal_redirect('/adm/ambiguous'); + } +} + return OK; +} + +1; +__END__