# The LearningOnline Network with CAPA
# external style responses
#
# $Id: externalresponse.pm,v 1.20 2013/08/22 07:39:15 kruse 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::externalresponse;
use strict;
use HTTP::Request::Common;
use Apache::loncapagrade;
use Apache::lonnet;
use Apache::lonlocal;
use Apache::lonxml();
use Apache::lonhtmlcommon;
use Apache::loncommon;
use Apache::lonnavmaps;
use LONCAPA qw(:DEFAULT :match);
BEGIN {
&Apache::lonxml::register('Apache::externalresponse',('externalresponse'));
}
=pod
=head1 FIXME (start_externalresponse)
send of response params and their current values (form good enough? what parameters to send?)
Need to get returned message displayed
=cut
sub start_externalresponse {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval,$style)=@_;
my $result;
my $id = &Apache::response::start_response($parstack,$safeeval);
if ($target eq 'edit') {
$result .=&Apache::edit::tag_start($target,$token);
$result .=&Apache::edit::text_arg('URL:','url',$token,60).' ';
$result .=&Apache::edit::text_arg(&mt('Answer:'),'answer',$token);
$result .=&Apache::edit::text_arg(&mt('Form:'),'form',$token).' ';
$result .=&Apache::edit::text_arg(&mt('Answer display:'),'answerdisplay',$token,80);
$result .=&Apache::edit::end_row().&Apache::edit::start_spanning_row();
} elsif ($target eq 'modified') {
my $constructtag =
&Apache::edit::get_new_args($token,$parstack,$safeeval,
'answerdisplay','answer','form','url');
if ($constructtag) {
$result = &Apache::edit::rebuild_tag($token);
}
} elsif ($target eq 'meta') {
$result=&Apache::response::meta_package_write('externalresponse');
}
elsif ($target eq 'web' &&
$Apache::inputtags::status[-1] eq 'CAN_ANSWER') {
my $part= $Apache::inputtags::part;
my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"},'<>&"');
my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
$uploadedfiletypes=~s/[^\w\,]//g;
my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
if (!defined($maxfilesize)) {
$maxfilesize = 10.0; #FIXME This should become a domain configuration
}
if($uploadedfiletypes){
my $hiddendraft;
if (($Apache::lonhomework::type eq 'survey') ||
($Apache::lonhomework::type eq 'surveycred') ||
($Apache::lonhomework::type eq 'anonsurvey') ||
($Apache::lonhomework::type eq 'anonsurveycred')) {
$hiddendraft = '';
} else {
my $status_text = &mt('Submission type');
if ($Apache::lonhomework::history{"resource.$part.award"} eq 'DRAFT') {
$status_text .= ' '.&mt('(Currently -- draft)');
}
$result = &Apache::lonhtmlcommon::row_title($status_text);
my $closure;
unless ($ncol || $uploadedfiletypes) {
$closure = 1;
}
$result.=
' '.
''.
&Apache::lonhtmlcommon::row_closure($closure);
}
if ($ncol > 0) {
$result.= &Apache::lonhtmlcommon::row_title(&mt('Collaborators')).
' ';
$result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
$result .= &Apache::lonhtmlcommon::row_closure();
}
my $filesfrom = 'both';
my $stuname = &Apache::lonnet::EXT('user.name');
my $studom = &Apache::lonnet::EXT('user.domain');
if (!&Apache::lonnet::usertools_access($stuname,$studom,'portfolio')) {
$filesfrom = 'uploadonly';
}
$result.=&Apache::inputtags::file_selector($part,$id,$uploadedfiletypes,
$filesfrom,undef,$maxfilesize);
if ($result) {
$result =
'
'."\n";
}
if ($file_list) {
$output.= &mt('Submitted Files').'
'.$file_list.'
';
}
if ($answer =~ /\S/) {
$output.='
'.&mt('Submitted text').'
'.$answer.'
';
}
return '
'.$output.'
';
}
sub file_submission {
my ($part,$id,$award,$uploadedflag,$totalsize,$deletions)=@_;
my $files;
my $jspart=$part;
$jspart=~s/\./_/g;
my ($symb,$crsid,$udom,$uname) = &Apache::lonnet::whichuser();
my %crsinfo = &Apache::lonnet::coursedescription($crsid);
my $cdom = $crsinfo{'domain'};
my $cnum = $crsinfo{'num'};
my (@portfiles,$uploadedurl,@submitted_portfiles,$submitted_upload,
@acceptable_portfiles,$acceptable_upload,@accepted_portfiles,
$accepted_upload,@savedportfiles,$stored_upload,@tolock,
%port_delete,$uploaded_delete);
if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"} ||
$Apache::lonhomework::history{"resource.$part.$id.uploadedurl"}) {
if ($Apache::lonhomework::history{"resource.$part.$id.portfiles"}) {
@portfiles = split(/,/,$Apache::lonhomework::history{"resource.$part.$id.portfiles"});
}
$uploadedurl = $Apache::lonhomework::history{"resource.$part.$id.uploadedurl"};
if (ref($deletions) eq 'ARRAY') {
if (@{$deletions} > 0) {
foreach my $file (@{$deletions}) {
$file = &HTML::Entities::decode($file);
if (grep(/^\Q$file\E$/,@portfiles)) {
$port_delete{$file} = 1;
} elsif ($file =~ m{^/uploaded/\Q$udom\E/\Q$uname\E/essayresponse/\Q$cdom\E/\Q$cnum\E/}) {
$uploaded_delete = $file;
} elsif ($file =~ m{^/uploaded/\Q$udom\E/\Q$uname\E/essayresponse/[^/]+$}) {
$uploaded_delete = $file;
}
}
}
}
foreach my $current (@portfiles) {
unless ($port_delete{$current}) {
push(@savedportfiles,$current);
}
}
if ($uploaded_delete) {
if ($uploaded_delete eq $uploadedurl) {
$Apache::lonhomework::results{"resource.$part.$id.uploadedfile"} = "";
$Apache::lonhomework::results{"resource.$part.$id.uploadedurl"} = "";
} else {
undef($uploaded_delete);
}
}
}
if ($env{'form.HWPORT'.$jspart.'_'.$id} ne '') {
my $newfiles= $env{'form.HWPORT'.$jspart.'_'.$id};
$newfiles =~s/,$//;
if ($newfiles =~ /[^\s]/) {
foreach my $file (split(/\s*,\s*/,$newfiles)) {
if ($file =~ /[^\s]/) {
push(@submitted_portfiles,$file);
}
}
}
}
if ($env{'form.HWFILETOOBIG'.$part.'_'.$id} ne '') {
$$award = 'EXCESS_FILESIZE';
} elsif ($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'} ne '') {
my $newfile = $env{'form.HWFILE'.$jspart.'_'.$id.'.filename'};
if ($newfile =~ /[^\s]/) {
$submitted_upload = $newfile;
}
}
if (@savedportfiles) {
foreach my $file (reverse(@savedportfiles)) {
unless(grep(/^\Q$file\E$/,@submitted_portfiles)) {
unshift(@submitted_portfiles,$file);
}
}
}
if (@submitted_portfiles || $submitted_upload) {
my $uploadedfiletypes=
&Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
if ($uploadedfiletypes ne '') {
$uploadedfiletypes=~s/[^\w\,]//g;
$uploadedfiletypes=','.$uploadedfiletypes.',';
if (@submitted_portfiles) {
foreach my $file (@submitted_portfiles) {
my ($extension)=($file=~/\.(\w+)$/);
if ($uploadedfiletypes=~/\,\s*\Q$extension\E\s*\,/i) {
push(@acceptable_portfiles,$file);
}
}
}
if ($submitted_upload) {
my ($upload_ext)=($submitted_upload=~/\.(\w+)$/);
if ($uploadedfiletypes=~/\,\s*\Q$upload_ext\E\s*\,/i) {
$acceptable_upload = $submitted_upload;
} else {
$$award='INVALID_FILETYPE';
&delete_form_items($jspart,$id);
}
}
} else {
@acceptable_portfiles = @submitted_portfiles;
$acceptable_upload = $submitted_upload;
}
}
if ((@acceptable_portfiles) || ($acceptable_upload ne '')) {
my $maxfilesize=&Apache::lonnet::EXT("resource.$part".'_'."$id.maxfilesize");
if (!$maxfilesize) {
$maxfilesize = 10.0; #FIXME This should become a domain configuration
}
my %dirlist;
if (@acceptable_portfiles) {
foreach my $file (@acceptable_portfiles) {
my ($path,$filename) = ($file =~ m{^(.*/)([^/]+)$});
my $fullpath = '/userfiles/portfolio'.$path;
if (!exists($dirlist{$fullpath})) {
my ($listref,$listerror) =
&Apache::lonnet::dirlist($fullpath,$udom,$uname,1);
if (ref($listref) eq 'ARRAY') {
$dirlist{$fullpath} = $listref;
}
}
if (ref($dirlist{$fullpath}) eq 'ARRAY') {
foreach my $dir_line (@{$dirlist{$fullpath}}) {
my ($fname,$dom,undef,$testdir,undef,undef,undef,undef,
$size,undef,$mtime,undef,undef,undef,$obs,undef) =
split(/\&/,$dir_line,16);
if ($filename eq $fname) {
my $mbsize = $size/(1024.0*1024.0);
if (ref($totalsize)) {
$$totalsize += $mbsize;
}
last;
}
}
}
if (ref($totalsize)) {
if ($$totalsize > $maxfilesize) {
$$award='EXCESS_FILESIZE';
&delete_form_items($jspart,$id);
} else {
push(@accepted_portfiles,$file);
}
} else {
push(@accepted_portfiles,$file);
}
}
}
if ($acceptable_upload ne '') {
if (ref($totalsize)) {
$$totalsize += $env{'form.HWFILESIZE'.$jspart.'_'.$id};
if ($$totalsize > $maxfilesize) {
$$award='EXCESS_FILESIZE';
delete($env{'form.HWFILE'.$jspart.'_'.$id});
} else {
$accepted_upload = $acceptable_upload;
}
} else {
$accepted_upload = $acceptable_upload;
}
}
}
if ($accepted_upload ne '') {
my ($path,$multiresp) =
&Apache::loncommon::get_turnedin_filepath($symb,$uname,$udom,
'submission');
if ($path eq '') {
$$award = 'INTERNAL_ERROR';
} else {
if ($multiresp) {
$path .= '/'.$jspart.'_'.$id;
}
my $prefix = 'portfolio';
my $formelement = 'HWFILE'.$jspart.'_'.$id;
my $fname = &Apache::lonnet::clean_filename($env{'form.'.$formelement.'.filename'});
my $url = '/uploaded/'.$udom.'/'.$uname.'/'.$prefix.$path.'/'.$fname;
my @stat = &Apache::lonnet::stat_file($url);
my $conflicts = 0;
if (@stat && $stat[0] ne 'no_such_dir') {
my $current_permissions =
&Apache::lonnet::get_portfile_permissions($udom,$uname);
if (ref($current_permissions) eq 'HASH') {
if (ref($current_permissions->{$path.'/'.$fname}) eq 'ARRAY') {
foreach my $record (@{$current_permissions->{$path.'/'.$fname}}) {
if (ref($record) eq 'ARRAY') {
next if (($record->[0] eq $symb) &&
($record->[1] eq $crsid));
$conflicts ++;
}
}
}
}
if ($conflicts) {
$$award = 'FILENAME_INUSE';
}
}
unless ($conflicts) {
my ($mode,%allfiles,%codebase);
my $result = &Apache::lonnet::userfileupload($formelement,'',
$prefix.$path,$mode,\%allfiles,\%codebase);
if ($result =~ m{^/uploaded/}) {
$stored_upload = $path.'/'.$fname;
unless (grep(/^\Q$stored_upload\E$/,@accepted_portfiles)) {
$Apache::lonhomework::results{"resource.$part.$id.portfiles"} = $stored_upload;
push(@tolock,$stored_upload);
}
} else {
$$award = 'INTERNAL_ERROR';
}
}
}
delete($env{'form.HWFILE'.$jspart.'_'.$id});
}
if (@accepted_portfiles) {
if ($Apache::lonhomework::results{"resource.$part.$id.portfiles"}) {
$Apache::lonhomework::results{"resource.$part.$id.portfiles"} .= ',';
}
$Apache::lonhomework::results{"resource.$part.$id.portfiles"}.=join(',',@accepted_portfiles);
push(@tolock,@accepted_portfiles);
}
if (!defined($Apache::lonhomework::results{"resource.$part.$id.portfiles"})) {
if (keys(%port_delete) > 0) {
$Apache::lonhomework::results{"resource.$part.$id.portfiles"} = "";
}
}
if (($Apache::lonhomework::history{"resource.$part.$id.portfiles"} ne
$Apache::lonhomework::results{"resource.$part.$id.portfiles"}) ||
($uploaded_delete)) {
if (ref($uploadedflag)) {
$$uploadedflag=1;
}
}
&Apache::lonnet::unmark_as_readonly($udom,$uname,[$symb,$crsid]);
&Apache::lonnet::mark_as_readonly($udom,$uname,[@tolock],[$symb,$crsid]);
&Apache::lonnet::clear_selected_files($uname);
return;
}
sub delete_form_items {
my ($jspart,$id) = @_;
delete($env{'form.HWFILE'.$jspart.'_'.$id.'.filename'});
delete($env{'form.HWFILE'.$jspart.'_'.$id.'.mimetype'});
delete($env{'form.HWFILE'.$jspart.'_'.$id});
}
sub check_collaborators {
my ($ncol,$coll) = @_;
my %classlist=&Apache::lonnet::dump('classlist',
$env{'course.'.$env{'request.course.id'}.'.domain'},
$env{'course.'.$env{'request.course.id'}.'.num'});
my (@badcollaborators,$result);
my (@collaborators) = split(/[,;\s]+/,$coll);
foreach my $entry (@collaborators) {
my $collaborator;
if ($entry =~ /:/) {
$collaborator = $entry;
} else {
$collaborator = $entry.':'.$env{'user.domain'};
}
if ($collaborator !~ /^$match_username:$match_domain$/) {
if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
push(@badcollaborators,$entry);
}
} elsif (!grep(/^\Q$collaborator\E$/i,keys(%classlist))) {
if (!grep(/^\Q$entry\E$/,@badcollaborators)) {
push(@badcollaborators,$entry);
}
}
}
my $numbad = scalar(@badcollaborators);
if ($numbad) {
$result = '
';
if ($numbad == 1) {
$result .= &mt('The following user is invalid:');
} else {
$result .= &mt('The following [_1] users are invalid:',$numbad);
}
$result .= ' '.join(', ',@badcollaborators).'. '.&mt('Please correct.').
'
';
}
my $toomany = scalar(@collaborators) - $ncol;
if ($toomany > 0) {
$result .= '
'.
&mt('You have too many collaborators.').' '.
&mt('Please remove [quant,_1,collaborator].',$toomany).
'
';
}
return $result;
}
1;
__END__
=pod
=head1 NAME
Apache::externalresponse.pm
=head1 SYNOPSIS
Handler to evaluate externally graded responses.
This is part of the LearningOnline Network with CAPA project
described at http://www.lon-capa.org.
=head1 SUBROUTINES
=over
=item start_externalresponse()
=item end_externalresponse()
=item format_prior_response()
=back
=cut