# The LearningOnline Network # Feedback # # $Id: lonfeedback.pm,v 1.27 2002/05/29 18:26:22 stredwic 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 # 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 # 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(); 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) = @_; $r->print (<Feedback not sent ENDNOREDIR if ($feedurl!~/^\/adm\/feedback/) { $r->print(''); } $r->print (< Sorry, no feedback possible on this resource ... ENDNOREDIRTWO } sub screen_header { my ($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'}) { $options.= '
'. 'Question/Comment/Feedback about course policy'; } if ($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'}; $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.='Submitting as Author Feedback
'; $feedurl=~/^\/res\/(\w+)\/(\w+)\//; $to{$2.':'.$1}=1; } if ($ENV{'form.question'}) { $typestyle.='Submitting as Question
'; foreach (split(/\,/, $ENV{'course.'.$ENV{'request.course.id'}.'.question.email'}) ) { $to{$_}=1; } } if ($ENV{'form.course'}) { $typestyle.='Submitting as Comment
'; foreach (split(/\,/, $ENV{'course.'.$ENV{'request.course.id'}.'.comment.email'}) ) { $to{$_}=1; } } if ($ENV{'form.policy'}) { $typestyle.='Submitting as Policy Feedback
'; foreach (split(/\,/, $ENV{'course.'.$ENV{'request.course.id'}.'.policy.email'}) ) { $to{$_}=1; } } return ($typestyle,%to); } sub send_msg { my ($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) eq '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.'
'; } 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']); 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($r,'/res/'.$url,'Changed discussion status

','0'); } 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); 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'} && ($feedurl!~m:^/adm:)) ) { # --------------------------------------------------- Print login screen header unless ($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. if ($ENV{'form.discuss'}) { $typestyle.=&adddiscuss($symb,$message); } if ($ENV{'form.anondiscuss'}) { $typestyle.=&adddiscuss($symb,$message,1); } # Receipt screen and redirect back to where came from &redirect_back($r,$feedurl,$typestyle,$numsent,$status); } } else { # Unable to give feedback &no_redirect_back($r,$feedurl); } } else { # Ambiguous Problem Resource $r->internal_redirect('/adm/ambiguous'); } } return OK; } 1; __END__