# The LearningOnline Network with CAPA
# definition of tags that give a structure to a document
#
# $Id: bridgetask.pm,v 1.34 2005/05/31 16:27:43 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/
#
###
package Apache::bridgetask;
use strict;
use Apache::lonnet;
use Apache::File();
use Apache::lonmenu;
use Apache::lonlocal;
use Apache::lonxml;
use Time::HiRes qw( gettimeofday tv_interval );
BEGIN {
&Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
}
sub initialize_bridgetask {
# id of current Dimension, 0 means that no dimension is current
# (inside <Task> only)
$Apache::bridgetask::dimension='';
# list of all Dimension ids seen
@Apache::bridgetask::dimensionlist=();
# mandatory attribute of all Dimensions seen
%Apache::bridgetask::dimensionmandatory=();
# list of all current Instance ids
@Apache::bridgetask::instance=();
# list of all Instance ids seen in this problem
@Apache::bridgetask::instancelist=();
# key of queud user data that we are currently grading
$Apache::bridgetask::queue_key='';
}
sub proctor_check_auth {
my ($slot_name,$slot)=@_;
my $user=$env{'form.proctorname'};
my $domain=$env{'form.proctordomain'};
my @allowed=split(",",$slot->{'proctor'});
foreach my $possible (@allowed) {
my ($puser,$pdom)=(split('@',$possible));
if ($puser eq $user && $pdom eq $domain) {
my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
if ($authhost ne 'no_host') {
my $version=
$Apache::lonhomework::results{'resource.version'}=
++$Apache::lonhomework::history{'resource.version'};
$Apache::lonhomework::results{"resource.$version.checkedin"}=
$user.'@'.$domain;
$Apache::lonhomework::results{"resource.$version.checkedin.slot"}=
$slot_name;
foreach my $key (keys(%Apache::lonhomework::history)) {
if ($key=~/^resource\.0\./) {
$Apache::lonhomework::results{$key}='';
}
}
return 1;
}
}
}
return 0;
}
sub get_version {
my ($version,$previous);
if ($env{'form.previousversion'} &&
defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
$version=$env{'form.previousversion'};
$previous=1;
} else {
$version=$Apache::lonhomework::history{'resource.version'};
$previous=0;
}
if (wantarray) {
return ($version,$previous);
}
return $version;
}
sub add_previous_version_button {
my ($status)=@_;
my $result;
if ($Apache::lonhomework::history{'resource.version'} eq '') {
return '';
}
if ($Apache::lonhomework::history{'resource.version'} < 2 &&
$status ne 'NEEDS_CHECKIN') {
return '';
}
my $version=&get_version();
if ($env{'form.previousversion'} ne '' &&
$env{'form.previousversion'} eq $version) {
$result.="<h3>".&mt("Showing previous version [_1]",$version).
"</h3>\n";
}
my @to_show;
foreach my $test_version (1..$Apache::lonhomework::history{'resource.version'}) {
if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.status'})) {
push(@to_show,$test_version);
}
}
my $list='<option>'.
join("</option>\n<option>",@to_show).
"</option>\n";
$result.='<form name="getprevious" method="POST" action="';
my $uri=$env{'request.uri'};
if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
$result.=$uri.'">'.
&mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
<option>'.&mt('Pick one').'</option>
'.$list.'
</select>')."</form>";
return $result;
}
sub add_grading_button {
my $result=' <input type="submit" name="gradeasubmission" value="'.
&mt("Get a submission to grade").'" />';
$result.='<input type="hidden" name="grade_target" value="webgrade" />';
if ( 1) {
#need a permissions for limitng this to 'powerful users'
my ($entries,$ready,$locks)=&get_queue_counts('gradingqueue');
$result.='<p>'.&mt("Grading Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
$result.=' <input type="submit" name="reviewagrading" value="'.
&mt("Select an entry from the grading queue").'" /> </p>'."\n";
($entries,$ready,$locks)=&get_queue_counts('reviewqueue');
$result.='<p>'.&mt("Review Queue has [_1] entries. [_2] of them are ready to be graded and [_3] of them are currently being graded",$entries,$ready,$locks);
$result.=' <input type="submit" name="reviewasubmission" value="'.
&mt("Select an entry from the review queue").'" /> </p>'."\n";
}
return $result;
}
sub add_request_another_attempt_button {
my $result;
$result.=' <input type="submit" name="requestattempt" value="'.
&mt("Request another attempt").'" />';
return $result;
}
sub preserve_grade_info {
my $result;
# if we are viewing someone else preserve that info
if (defined $env{'form.grade_symb'}) {
foreach my $field ('symb','courseid','domain','username') {
$result .= '<input type="hidden" name="grade_'.$field.
'" value="'.$env{"form.grade_$field"}.'" />'."\n";
}
}
return $result;
}
sub start_Task {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my ($status,$accessmsg,$slot);
if ($target ne 'webgrade') {
&Apache::structuretags::initialize_storage();
&Apache::lonhomework::showhash(%Apache::lonhomework::history);
}
$Apache::lonhomework::parsing_a_task=1;
#should get back a <html> or the neccesary stuff to start XML/MathML
my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
&Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
if ($target eq 'web') {
if ($Apache::lonhomework::modifygrades) {
$body_tag_start.='<form name="gradesubmission" method="POST" action="';
my $uri=$env{'request.uri'};
if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
$body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
}
}
if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
$target eq 'tex') {
my ($version,$previous)=&get_version();
($status,$accessmsg,my $slot_name,$slot) =
&Apache::lonhomework::check_task_access('0');
push(@Apache::inputtags::status,$status);
$Apache::inputtags::slot_name=$slot_name;
my $expression='$external::datestatus="'.$status.'";';
$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
&Apache::run::run($expression,$safeeval);
&Apache::lonxml::debug("Got $status");
$body_tag_start.=&add_previous_version_button($status);
if (!$previous && (
( $status eq 'CLOSED' ) ||
( $status eq 'BANNED') ||
( $status eq 'UNAVAILABLE') ||
( $status eq 'NOT_IN_A_SLOT') ||
( $status eq 'NEEDS_CHECKIN') ||
( $status eq 'WAITING_FOR_GRADE') ||
( $status eq 'INVALID_ACCESS') )) {
my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
if ( $target eq "web" ) {
$result.= $head_tag_start.'</head>'.$body_tag_start;
my $msg;
if ($status eq 'UNAVAILABLE') {
$msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
} elsif ($status eq 'NOT_IN_A_SLOT') {
$msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
} elsif ($status eq 'NEEDS_CHECKIN') {
$msg.='<h1>'.&mt('You need the Proctor to validate you.').
'</h1>'.&proctor_validation_screen($slot);
} elsif ($status eq 'WAITING_FOR_GRADE') {
$msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
} elsif ($status ne 'NOT_YET_VIEWED') {
$msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
}
if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
$msg.='The problem '.$accessmsg;
}
$result.=$msg.'<br />';
} elsif ($target eq 'tex') {
$result.='\begin{document}\noindent \vskip 1 mm \begin{minipage}{\textwidth}\vskip 0 mm';
if ($status eq 'UNAVAILABLE') {
$result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
} else {
$result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
}
} elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
if ($status eq 'NEEDS_CHECKIN') {
if (&proctor_check_auth($slot_name,$slot)) {
#FIXME immeadiatly add this to the grading queue
# with slot->{'endtime'} for when grading can
# begin on this resource
# FIXME I think the above is done by default,
# need to check that
# failure doesn't do this.
}
}
}
} elsif ($target eq 'web') {
my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
$result.="$head_tag_start<title>$name</title></head>
$body_tag_start \n $form_tag_start".
'<input type="hidden" name="submitted" value="yes" />';
$result.=&preserve_grade_info();
my ($version,$previous)=&get_version();
if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
$result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
if (!$previous) {
$result.=&add_request_another_attempt_button();
}
}
if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
$result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
}
}
} elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
$target eq 'webgrade') {
my $webgrade='yes';
if ($target eq 'webgrade') {
$result.=$head_tag_start.$body_tag_start;
$result.='<br />Review'.&show_queue('reviewqueue');
$result.='<br />Grade'.&show_queue('gradingqueue');
}
# FIXME Blast! still need to reorg this, need to reshow the
# queue being reviewed once done with the grade pass...
# Hrrm, vaildation pass should perhaps say 'not_locked'
# perhaps do a search if there is a key that is mine and if
# there isn't reshow the queue....
my ($todo,$status_code)=&get_key_todo($target);
&Apache::lonnet::logthis("got todo -$todo- stat -$status_code-");
if ($todo) {
&setup_env_for_other_user($todo,$safeeval);
my ($symb,$uname,$udom)=&decode_queue_key($todo);
$result.="\n".'<table><tr><td>Found '.
&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
$form_tag_start.=
'<input type="hidden" name="gradingkey" value="'.
&Apache::lonnet::escape($todo).'" />';
$Apache::bridgetask::queue_key=$todo;
&Apache::structuretags::initialize_storage();
&Apache::lonhomework::showhash(%Apache::lonhomework::history);
if ($target eq 'webgrade') {
$result.='<br />After -'.&show_queue($env{'form.queue'});
$result.="\n".'<table width="100%" style="width:100%" border="1">';
if ($status_code eq 'selected') {
$form_tag_start.=
'<input type="hidden" name="queuemode" value="selected" />';
}
}
} else {
if ($target eq 'webgrade') {
$result.="\n";
if ($status_code eq 'stop') {
$result.='<b>'.&mt("Stopped grading.").'</b>';
} elsif ($status_code eq 'lock_failed') {
$result.='<b>'.&mt("Failed to lock the request record.").'</b>';
} elsif ($status_code eq 'unlock') {
$result.='<b>'.&mt("Unlocked the requested record.").'</b>';
$result.=&show_queue($env{'form.queue'},1);
} elsif ($status_code eq 'show_list') {
$result.=&show_queue($env{'form.queue'},1);
} else {
$result.='<b>'.&mt("No user to be graded.").'</b>';
}
}
$webgrade='no';
my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
}
if ($target eq 'webgrade' && defined($env{'form.queue'})) {
$result.=$form_tag_start;
$result.='<input type="hidden" name="webgrade" value="'.
$webgrade.'" />';
$result.='<input type="hidden" name="queue" value="'.
$env{'form.queue'}.'" />';
}
} else {
# page_start returned a starting result, delete it if we don't need it
$result = '';
}
return $result;
}
sub get_key_todo {
my ($target)=@_;
my $todo;
if (defined($env{'form.reviewasubmission'})) {
&Apache::lonnet::logthis("review a submission....");
$env{'form.queue'}='reviewqueue';
return (undef,'show_list');
}
if (defined($env{'form.reviewagrading'})) {
&Apache::lonxml::debug("review a grading....");
$env{'form.queue'}='gradingqueue';
return (undef,'show_list');
}
my $queue=$env{'form.queue'};
if (!defined($queue)) {
$env{'form.queue'}=$queue='gradingqueue';
}
my $gradingkey=&Apache::lonnet::unescape($env{'form.gradingkey'});
if (defined($env{'form.queue'}) && defined($env{'form.gradingkey'})
&& !defined($env{'form.gradingaction'})
&& $env{'form.queuemode'} eq 'selected') {
my $who=&queue_key_locked($queue,$gradingkey);
my $me=$env{'user.name'}.'@'.$env{'user.domain'};
if ($who eq $me) {
&Apache::lonxml::debug("Found a key was given to me");
return ($gradingkey,'selected');
} else {
return (undef,'show_list');
}
}
if ($target eq 'webgrade' && $env{'form.queuemode'} eq 'selected') {
if ($env{'form.gradingaction'} eq 'resume') {
delete($env{'form.gradingaction'});
&Apache::lonxml::debug("Resuming a key");
return ($gradingkey);
} elsif ($env{'form.gradingaction'} eq 'unlock') {
&Apache::lonxml::debug("Unlocking a key ".
&check_queue_unlock($queue,$gradingkey,1));
return (undef,'unlock');
} elsif ($env{'form.gradingaction'} eq 'select') {
&Apache::lonxml::debug("Locking a key");
if (&lock_key($queue,$gradingkey)) {
&Apache::lonxml::debug("Success $queue");
return ($gradingkey);
}
&Apache::lonxml::debug("Failed $queue");
return (undef,'lock_failed');
}
}
if ($env{'form.queuemode'} ne 'selected') {
# don't get something new from the queue if they hit the stop button
if (!($env{'form.stop'} && $target eq 'webgrade')
&& !$env{'form.gradingaction'}) {
&Apache::lonxml::debug("Getting anew $queue");
return (&get_from_queue($queue));
} else {
return (undef,'stop');
}
}
return (undef,undef)
}
sub end_Task {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result='';
my $status=$Apache::inputtags::status['-1'];
my ($version,$previous)=&get_version();
if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
$target eq 'tex') {
if (
(($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
($target eq 'answer') || ($target eq 'tex')
) {
if ($target eq 'web') {
if ($status eq 'CAN_ANSWER' && !$previous) {
$result.="\n".'<table border="1">'.
&Apache::inputtags::file_selector("$version.0",
"bridgetask","*",
'portfolioonly').
"</table>";
$result.=&Apache::inputtags::gradestatus('0');
}
}
if ($target eq 'web' || $target eq 'webgrade') {
$result.=&Apache::lonxml::xmlend().'</html>';
}
}
if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
my $award='SUBMITTED';
&Apache::essayresponse::file_submission("$version.0",'bridgetask',
'portfiles',\$award);
if ($award eq 'SUBMITTED' &&
$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
$Apache::lonhomework::results{"resource.0.tries"}=
$Apache::lonhomework::results{"resource.$version.0.tries"}=
1+$Apache::lonhomework::history{"resource.$version.0.tries"};
$Apache::lonhomework::results{"resource.0.award"}=
$Apache::lonhomework::results{"resource.$version.0.award"}=
$award;
}
&Apache::lonhomework::showhash(%Apache::lonhomework::results);
&Apache::structuretags::finalize_storage();
if ($award eq 'SUBMITTED') {
&add_to_queue('gradingqueue',$Apache::inputtags::slot_name);
}
}
if ($target eq 'grade' && $env{'form.webgrade'} eq 'yes') {
my $optional_required=
&Apache::lonxml::get_param('OptionalRequired',$parstack,
$safeeval);
my $optional_passed=0;
my $mandatory_failed=0;
my $ungraded=0;
my $review=0;
&Apache::lonhomework::showhash(%Apache::lonhomework::results);
foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
my $status=
$Apache::lonhomework::results{"resource.$version.$dim_id.status"};
my $mandatory=
($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
if ($status eq 'pass') {
if (!$mandatory) { $optional_passed++; }
} elsif ($status eq 'fail') {
if ($mandatory) { $mandatory_failed++; }
} elsif ($status eq 'ungraded') {
$ungraded++;
} elsif ($status eq 'review') {
$review++;
}
}
if ($optional_passed < $optional_required) {
$mandatory_failed++;
}
&Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
$Apache::lonhomework::results{'resource.grader'}=
$env{'user.name'}.'@'.$env{'user.domain'};
if ($review) {
$Apache::lonhomework::results{"resource.$version.status"}='review';
if ($env{'form.queue'} eq 'reviewqueue') {
&check_queue_unlock($env{'form.queue'});
&Apache::lonxml::debug(" still needs review not changing status.");
} else {
&move_between_queues('gradingqueue','reviewqueue');
}
} elsif ($ungraded) {
$Apache::lonhomework::results{"resource.$version.status"}='ungraded';
# FIXME if in review queue need to move back to grading queue
if ($env{'form.queue'} eq 'reviewqueue') {
&Apache::lonxml::debug("moving back.");
&move_between_queues('reviewqueue','gradingqueue');
} else {
&check_queue_unlock($env{'form.queue'});
}
} elsif ($mandatory_failed) {
$Apache::lonhomework::results{"resource.$version.status"}='fail';
$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
&remove_from_queue($env{'form.queue'});
} else {
$Apache::lonhomework::results{"resource.$version.status"}='pass';
$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
&remove_from_queue($env{'form.queue'});
}
$Apache::lonhomework::results{"resource.status"}=
$Apache::lonhomework::results{"resource.$version.status"};
if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
$Apache::lonhomework::results{"resource.0.award"}=
$Apache::lonhomework::results{"resource.$version.award"};
$Apache::lonhomework::results{"resource.0.awarded"}=
$Apache::lonhomework::results{"resource.$version.awarded"};
$Apache::lonhomework::results{"resource.0.solved"}=
$Apache::lonhomework::results{"resource.$version.solved"};
}
&Apache::structuretags::finalize_storage();
}
} elsif ($target eq 'webgrade') {
$result.="</table>\n<hr />";
#$result.='<input type="submit" name="next" value="'.
# &mt('Save & Next').'" /> ';
#$result.='<input type="submit" name="end" value="'.
# &mt('Save & Stop Grading').'" /> ';
#$result.='<input type="submit" name="throwaway" value="'.
# &mt('Throw Away & Stop Grading').'" /> ';
#$result.='<input type="submit" name="save" value="'.
# &mt('Save Partial Grade and Continue Grading').'" /> ';
$result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
} elsif ($target eq 'meta') {
$result.='<parameter part="0" package="Task"></parameter>'."\n";
#$result.=&Apache::response::meta_part_order();
#$result.=&Apache::response::meta_response_order();
}
undef($Apache::lonhomework::parsing_a_task);
return $result;
}
sub move_between_queues {
my ($src_queue,$dest_queue)=@_;
my $cur_data=&get_queue_data($src_queue);
if (!$cur_data) { return 'not_exist'; }
my $result=&add_to_queue($dest_queue,$cur_data->[0]);
if ($result ne 'ok') {
return $result;
}
&check_queue_unlock($src_queue);
return &remove_from_queue($src_queue);
}
sub check_queue_unlock {
my ($queue,$key,$allow_not_me)=@_;
my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
if (!defined($key)) {
$key="$symb\0queue\0$uname\@$udom";
}
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my $me=$env{'user.name'}.'@'.$env{'user.domain'};
my $who=&queue_key_locked($queue,$key,$cdom,$cnum);
if ($who eq $me) {
return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
} elsif ($allow_not_me) {
&Apache::lonxml::debug("unlocking $who by $me");
return &Apache::lonnet::del($queue,["$key\0locked"],$cdom,$cnum);
}
return 'not_owner';
}
sub remove_from_queue {
my ($queue)=@_;
my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my $key="$symb\0queue\0$uname\@$udom";
my @keys=($key,"$key\0locked");
return &Apache::lonnet::del($queue,\@keys,$cdom,$cnum);
}
sub setup_env_for_other_user {
my ($queue_key,$safeeval)=@_;
my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
&Apache::lonxml::debug("setup_env for $queue_key");
$env{'form.grade_symb'}=$symb;
$env{'form.grade_domain'}=$udom;
$env{'form.grade_username'}=$uname;
$env{'form.grade_courseid'}=$env{'request.course.id'};
&Apache::lonxml::initialize_rndseed($safeeval);
}
sub get_queue_data {
my ($queue)=@_;
my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my $todo="$symb\0queue\0$uname\@$udom";
my ($key,$value)=&Apache::lonnet::get($queue,[$todo],$cdom,$cnum);
if ($key eq $todo && ref($value)) {
return $value;
}
return undef;
}
sub add_to_queue {
my ($queue,$slot_name)=@_;
my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my %data;
$data{"$symb\0queue\0$uname\@$udom"}=[$slot_name];
return &Apache::lonnet::put($queue,\%data,$cdom,$cnum);
}
sub show_queue {
my ($queue,$with_selects)=@_;
my $result;
my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my $regexp="^$symb\0";
my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
my ($tmp)=%queue;
if ($tmp=~/^error: 2 /) {
return "\n<h3>Current Queue - $queue</h3><table border='1'><tr><td>Empty</td></tr></table>";
}
$result.="\n<h3>Current Queue - $queue </h3><table border='1'><tr>";
if ($with_selects) { $result.="<th></th>"; }
$result.="<th>resource</th><th>user</th><th>type</th><th>data</th></tr>";
foreach my $key (sort(keys(%queue))) {
if ($key=~/locked$/ && !$with_selects) {
my ($symb,$uname,$udom) = &decode_queue_key($key);
my $title=&Apache::lonnet::gettitle($symb);
$result.="<tr><td>$title</td><td>$uname</td>";
$result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
} elsif ($key=~/timestamp$/ && !$with_selects) {
my ($symb,undef) = split("\0",$key);
my $title=&Apache::lonnet::gettitle($symb);
$result.="<tr><td>$title</td><td></td>";
$result.='<td>last queue modification time</td><td>'.
&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
} elsif ($key!~/(timestamp|locked)$/) {
my ($symb,$uname,$udom) = &decode_queue_key($key);
my $title=&Apache::lonnet::gettitle($symb);
$result.="<tr>";
if ($with_selects) {
my $ekey=&Apache::lonnet::escape($key);
my ($action,$description)=('select',&mt('Select'));
if (exists($queue{"$key\0locked"})) {
my $me=$env{'user.name'}.'@'.$env{'user.domain'};
if ($me eq $queue{"$key\0locked"}) {
($action,$description)=('resume',&mt('Resume'));
} else {
($action,$description)=('unlock',&mt('Unlock'));
}
}
$result.=(<<FORM);
<td>
<form method="POST">
<input type="hidden" name="gradingkey" value="$ekey" />
<input type="hidden" name="queue" value="$queue" />
<input type="hidden" name="gradingaction" value="$action" />
<input type="hidden" name="webgrade" value="no" />
<input type="hidden" name="queuemode" value="selected" />
<input type="submit" name="submit" value="$description" />
</form>
</td>
FORM
}
$result.="<td>$title</td><td>$uname</td>";
my $slot=$queue{$key}->[0];
my %slot_data=&Apache::lonnet::get_slot($slot);
$result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
"</td></tr>";
}
}
$result.="</table><hr />\n";
return $result;
}
sub get_queue_counts {
my ($queue)=@_;
my $result;
my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my $regexp="^$symb\0";
my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
my ($tmp)=%queue;
if ($tmp=~/^error: 2 /) {
return (0,0,0);
}
my ($entries,$ready_to_grade,$locks)=(0,0,0);
foreach my $key (sort(keys(%queue))) {
if ($key=~/locked$/) {
$locks++;
} elsif ($key=~/timestamp$/) {
#ignore
} elsif ($key!~/(timestamp|locked)$/) {
my ($symb,$uname,$udom) = &decode_queue_key($key);
$entries++;
my $slot=$queue{$key}->[0];
my %slot_data=&Apache::lonnet::get_slot($slot);
if (time > $slot_data{'endtime'}) {
$ready_to_grade++;
}
}
}
return ($entries,$ready_to_grade,$locks);
}
sub decode_queue_key {
my ($key)=@_;
my ($symb,undef,$user) = split("\0",$key);
my ($uname,$udom) = split('@',$user);
return ($symb,$uname,$udom);
}
sub queue_key_locked {
my ($queue,$key,$cdom,$cnum)=@_;
if (!defined($cdom) || !defined($cnum)) {
my (undef,$cid)=&Apache::lonxml::whichuser();
$cnum=$env{'course.'.$cid.'.num'};
$cdom=$env{'course.'.$cid.'.domain'};
}
my ($key_locked,$value)=
&Apache::lonnet::get($queue,["$key\0locked"],$cdom,$cnum);
if ($key_locked eq "$key\0locked") {
return $value;
}
return undef;
}
sub pick_from_queue_data {
my ($queue,$check_section,$queuedata,$cdom,$cnum)=@_;
foreach my $key (keys(%$queuedata)) {
my ($symb,$uname,$udom)=&decode_queue_key($key);
if ($check_section) {
my $section=&Apache::lonnet::getsection($uname,$udom);
if ($section eq $check_section) {
&Apache::lonxml::debug("my sec");
next;
}
}
my $slot=$queuedata->{$key}[0];
my %slot_data=&Apache::lonnet::get_slot($slot);
if ($slot_data{'endtime'} > time) {
&Apache::lonxml::debug("not time");
next;
}
if (&queue_key_locked($queue,$key,$cdom,$cnum)) {
&Apache::lonxml::debug("someone already has um.");
next;
}
return $key;
}
return undef;
}
sub find_mid_grade {
my ($queue,$symb,$cdom,$cnum)=@_;
my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
my $me=$env{'user.name'}.'@'.$env{'user.domain'};
if ($todo) {
my $who=&queue_key_locked($queue,$todo,$cdom,$cnum);
if ($who eq $me) { return $todo; }
}
my $regexp="^$symb\0.*\0locked\$";
my %locks=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
foreach my $key (keys(%locks)) {
my $who=$locks{$key};
if ($who eq $me) {
$todo=$key;
$todo=~s/\0locked$//;
return $todo;
}
}
return undef;
}
sub lock_key {
my ($queue,$todo)=@_;
my $me=$env{'user.name'}.'@'.$env{'user.domain'};
my (undef,$cid)=&Apache::lonxml::whichuser();
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my $success=&Apache::lonnet::newput($queue,{"$todo\0locked"=> $me},
$cdom,$cnum);
&Apache::lonxml::debug("success $success $todo");
if ($success eq 'ok') {
return 1;
}
return 0;
}
sub get_from_queue {
my ($queue)=@_;
my $result;
my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my $todo=&find_mid_grade($queue,$symb,$cdom,$cnum);
&Apache::lonxml::debug("found ".join(':',&decode_queue_key($todo)));
if ($todo) { return $todo; }
while (1) {
my $starttime=time;
&Apache::lonnet::put($queue,{"$symb\0timestamp"=>$starttime},
$cdom,$cnum);
&Apache::lonxml::debug("$starttime");
my $regexp="^$symb\0queue\0";
my %queue=&Apache::lonnet::dump($queue,$cdom,$cnum,$regexp);
#make a pass looking for a user _not_ in my section
if ($env{'request.course.sec'}) {
&Apache::lonxml::debug("sce");
$todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
\%queue,$cdom,$cnum);
&Apache::lonxml::debug("sce $todo");
}
# no one _not_ in our section so look for any user that is
# ready for grading
if (!$todo) {
&Apache::lonxml::debug("no sce");
$todo=&pick_from_queue_data($queue,$env{'request.course.sec'},
\%queue,$cdom,$cnum);
&Apache::lonxml::debug("no sce $todo");
}
# no user to grade
if (!$todo) { last; }
&Apache::lonxml::debug("got $todo");
# otherwise found someone so lets try to lock them
# unless someone else already picked them
if (!&lock_key($queue,$todo)) { next; }
my (undef,$endtime)=
&Apache::lonnet::get($queue,["$symb\0timestamp"],
$cdom,$cnum);
&Apache::lonxml::debug("emd $endtime");
# someone else already modified the queue,
# perhaps our picked user wass already fully graded between
# when we picked him and when we locked his record? so lets
# double check.
if ($endtime != $starttime) {
my ($key,$value)=
&Apache::lonnet::get($queue,["$todo"],
$cdom,$cnum);
&Apache::lonxml::debug("check $key .. $value");
if ($key eq $todo && ref($value)) {
} else {
&Apache::lonnet::del($queue,["$todo\0locked"],
$cdom,$cnum);
&Apache::lonxml::debug("del");
next;
}
}
&Apache::lonxml::debug("last $todo");
last;
}
return $todo;
}
sub start_ClosingParagraph {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;
if ($target eq 'web') {
} elsif ($target eq 'webgrade') {
&Apache::lonxml::startredirection();
}
return $result;
}
sub end_ClosingParagraph {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;
if ($target eq 'web') {
} elsif ($target eq 'webgrade') {
&Apache::lonxml::endredirection();
}
return $result;
}
sub get_id {
my ($parstack,$safeeval)=@_;
my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
if (!$id) { $id=$Apache::lonxml::curdepth; }
return $id;
}
my %dimension;
sub start_Dimension {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
undef(%dimension);
my $dim_id=&get_id($parstack,$safeeval);
$Apache::bridgetask::dimension=$dim_id;
push(@Apache::bridgetask::dimensionlist,$dim_id);
undef(@Apache::bridgetask::instance);
$Apache::bridgetask::dimensionmandatory{$dim_id}=
&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
return '';
}
sub get_instance {
&Apache::response::pushrandomnumber();
my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
my $num=@order;
my $version=&get_version();
my $which=($version-1)%$num;
return $order[$which];
}
{
my $last_link;
sub end_Dimension {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;
my $dim=&get_id($parstack,$safeeval);
my $instance=&get_instance();
my $version=&get_version();
if ($target eq 'web') {
$result=$dimension{'intro'}.$dimension{$instance.'.text'};
if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
$Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
foreach my $id (@{$dimension{$instance.'.criterias'}}) {
my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
$result.='<table border="1"><tr><td>';
if ($status eq 'fail') {
$result.='<font color="red">'.&mt('Did not pass').'</font>';
} elsif ($status eq 'pass') {
$result.='<font color="green">'.&mt('Passed').'</font>';
} else {
&Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");
}
$result.='</td></tr><tr><td>';
if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
$result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
}
$result.=$dimension{$instance.'.criteria.'.$id}.
'</td></tr></table>';
}
}
} elsif ($target eq 'webgrade') {
foreach my $id (@{$dimension{$instance.'.criterias'}}) {
my $link='criteria_'.$instance.'_'.$id;
my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
$result.='<tr><td width="100%" valign="top">'.
'<a name="'.$link.'" />'.
'<a name="next_'.$last_link.'" />'.
'<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.
#$dimension{$instance.'.criteria.'.$id}.
'</td>'.
'<td><nobr>Additional Comment for Student</nobr> <br />'.
'<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
'</td>'.
'<td>'.
'<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>'.&mt('Ungraded').'</label></nobr><br />'.
'<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />'.&mt('Pass').'</label><br />'.
'<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />'.&mt('Fail').'</label><br />'.
'<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />'.&mt('Review').'</label><br />'.
'</td>'.
'<td>'.
'<a href="#'.$last_link.'">Prev</a><br />'.
'<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
'<input type="submit" name="next" value="'.
&mt('Done').'" /> '.
'<input type="submit" name="stop" value="'.
&mt('Stop').'" /> '.
'</td></tr>';
$result.='<tr><td colspan="4">';
my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.bridgetask.portfiles"})) {
my $file=$file_url.$partial_file;
&Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
$result.='<a href="'.$file.'" target="lonGRDs"><img src="'.
&Apache::loncommon::icon($file).'" border=0"> '.$file.
'</a>';
}
$result.='</td></tr>';
$last_link=$link;
}
} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
my $optional_passed=0;
my $mandatory_failed=0;
my $ungraded=0;
my $review=0;
foreach my $id (@{$dimension{$instance.'.criterias'}}) {
my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
if ($status eq 'pass') {
if (!$mandatory) { $optional_passed++; }
} elsif ($status eq 'fail') {
if ($mandatory) { $mandatory_failed++; }
} elsif ($status eq 'review') {
$review++;
} elsif ($status eq 'ungraded') {
$ungraded++;
} else {
&Apache::lonxml::error("got weird status --$status--");
}
}
if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
$mandatory_failed++;
}
&Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
if ($review) {
$Apache::lonhomework::results{"resource.$version.$dim.status"}=
'review';
} elsif ($ungraded) {
$Apache::lonhomework::results{"resource.$version.$dim.status"}=
'ungraded';
} elsif ($mandatory_failed) {
$Apache::lonhomework::results{"resource.$version.$dim.status"}=
'fail';
} else {
$Apache::lonhomework::results{"resource.$version.$dim.status"}=
'pass';
}
}
return $result;
}
}
sub start_IntroParagraph {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;
if ($target eq 'web' || $target eq 'webgrade') {
if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
&Apache::lonxml::startredirection();
}
}
return $result;
}
sub end_IntroParagraph {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;
if ($target eq 'web' || $target eq 'webgrade') {
if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
$dimension{'intro'}=&Apache::lonxml::endredirection();
}
}
return $result;
}
sub start_Instance {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $id=&get_id($parstack,$safeeval);
push(@{$dimension{'instances'}},$id);
push(@Apache::bridgetask::instance,$id);
push(@Apache::bridgetask::instancelist,$id);
$dimension{$id.'.optionalrequired'}=
&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
return '';
}
sub end_Instance {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
return '';
}
sub start_InstanceText {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
if ($target eq 'web' || $target eq 'webgrade') {
&Apache::lonxml::startredirection();
}
return '';
}
sub end_InstanceText {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $instance_id=$Apache::bridgetask::instance[-1];
if ($target eq 'web' || $target eq 'webgrade') {
$dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
}
return '';
}
sub start_Criteria {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
&Apache::lonxml::startredirection();
}
return '';
}
sub end_Criteria {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $instance_id=$Apache::bridgetask::instance[-1];
if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
my $criteria=&Apache::lonxml::endredirection();
my $id=&get_id($parstack,$safeeval);
$dimension{$instance_id.'.criteria.'.$id}=$criteria;
$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
push(@{$dimension{$instance_id.'.criterias'}},$id);
}
return '';
}
sub proctor_validation_screen {
my ($slot) = @_;
my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
$user=$env{'form.proctorname'};
if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
my $msg;
if ($env{'form.proctorpassword'}) {
$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
.'</font></p>';
}
my $result= (<<ENDCHECKOUT);
<h2>Proctor Validation</h2>
<p>Your room's proctor needs to validate your access to this resource.</p>
$msg
<form name="checkout" method="POST" action="$env{'request.uri'}">
<input type="hidden" name="validate" value="yes" />
<input type="hidden" name="submitted" value="yes" />
<table>
<tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
<tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
<tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
</table>
<input type="submit" name="checkoutbutton" value="Validate" /><br />
Student who should be logged in is:<br />
<img src="$url" /><br />
</form>
ENDCHECKOUT
return $result;
}
1;
__END__
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