# The LearningOnline Network # Feedback # # (Internal Server Error Handler # # (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) # # 3/1/1 Gerd Kortemeyer) # # 3/1,2/3,2/5,2/6,2/8 Gerd Kortemeyer # package Apache::lonfeedback; use strict; use Apache::Constants qw(:common); use Apache::lonmsg(); sub mail_screen { my ($r,$feedurl,$options) = @_; $r->print(< The LearningOnline Network with CAPA

Feedback

$feedurl

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

ENDDOCUMENT } sub fail_redirect { my ($r,$feedurl) = @_; $r->print (<Feedback not sent Sorry, no recipients ... ENDFAILREDIR } sub redirect_back { my ($r,$feedurl,$typestyle,$sendsomething,$status) = @_; $r->print (< Feedback sent $typestyle Sent $sendsomething message(s). $status ENDREDIR } sub no_redirect_back { my ($r,$feedurl) = @_; $r->print (<Feedback not sent Sorry, no feedback possible on this resource ... ENDNOREDIR } sub screen_header { my ($feedurl) = @_; 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'; } return $options; } sub get_previous_attempt { my ($feedurl)=@_; 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'.$lasthash{$_}.'
'; } } 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'}; $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,$citations); } sub decide_receiver { my ($feedurl) = @_; 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'}); } return ($typestyle,%to); } sub send_msg { my ($feedurl,$email,$citations,%to)=@_; 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 { #$status.='
Message sent to '.$_.'
'; $sendsomething++; } } } keys %to; return ($status,$sendsomething); } 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 $options=&screen_header($feedurl); if ($options) { &mail_screen($r,$feedurl,$options); } else { &fail_redirect($r,$feedurl); } } else { # Get previous user input my $prevattempts=&get_previous_attempt($feedurl); # 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); # Receipt screen and redirect back to where came from &redirect_back($r,$feedurl,$typestyle,$status,$numsent); } } else { &no_redirect_back($r,$feedurl); } return OK; } 1; __END__