File:
[LON-CAPA] /
loncom /
homework /
bridgetask.pm
Revision
1.15:
download - view:
text,
annotated -
select for diffs
Tue May 3 05:31:51 2005 UTC (18 years, 11 months ago) by
albertel
Branches:
MAIN
CVS tags:
HEAD
- if uploaded filetypes isn't set can upload any file
- added a lot of debuggin info
- actaully compiles now
- wroks correctly in the null case
- add non-fuctional submissions buttons to improve the look of grade mode
- if no user to grade don't show criteria
# The LearningOnline Network with CAPA
# definition of tags that give a structure to a document
#
# $Id: bridgetask.pm,v 1.15 2005/05/03 05:31:51 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=();
# 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)=@_;
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') {
$Apache::lonhomework::results{'resource.checkedin'}=
$user.'@'.$domain;
return 1;
}
}
}
return 0;
}
sub add_previous_version_button {
my $result;
$result.=&mt(' Show a previously done version: [_1]','<select name="previousversion">
<option>Pick one</option>
</select>');
return $result;
}
sub add_grading_button {
my $result;
$result.=' <input type="submit" name="gradeasubmission" value="'.
&mt("Get a submission to grade").'" />';
$result.='<input type="hidden" name="grade_target" value="webgrade" />';
return $result;
}
sub start_Task {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
&Apache::structuretags::initialize_storage();
&Apache::lonhomework::showhash(%Apache::lonhomework::history);
my ($status,$accessmsg,$slot);
$Apache::lonhomework::parsing_a_task=1;
#should get back a <html> or the neccesary stuff to start XML/MathML
my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
&Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
if ($target eq 'web') {
$body_tag_start.=&add_previous_version_button();
if ($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' || $target eq 'answer' ||
$target eq 'tex') {
($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="'.$Apache::lonhomework::history{"resource.0.solved"}.'";';
&Apache::run::run($expression,$safeeval);
&Apache::lonxml::debug("Got $status");
if (( $status eq 'CLOSED' ) ||
( $status eq 'BANNED') ||
( $status eq 'UNAVAILABLE') ||
( $status eq 'NOT_IN_A_SLOT') ||
( $status eq 'NEEDS_CHECKIN') ||
( $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 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') {
if ($status eq 'NEEDS_CHECKIN') {
if (&proctor_check_auth($slot)) {
#FIXME immeadiatly add this to the grading queue
# with slot->{'endtime'} for when grading can
# begin on this resource
}
}
}
} 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" />';
# 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";
}
}
}
} elsif ($target eq 'webgrade') {
$result.=$head_tag_start.$body_tag_start.$form_tag_start;
$result.=&show_queue();
my $todo=&get_from_queue();
if ($todo) {
my ($symb,$uname,$udom)=&decode_queue_key($todo);
$result.="\n".'<table><tr><td>Found'.
$symb.':'.$uname.':'.$udom.'</td></tr></table>';
$result.='<input type="hidden" name="gradingkey" value="'.
&HTML::Entites::encode($todo).'" />';
$Apache::bridgetask::queue_key=$todo;
} else {
$result.="\n".
'<table><tr><td>No user to be graded.</td></tr></table>';
my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
}
} else {
# page_start returned a starting result, delete it if we don't need it
$result = '';
}
return $result;
}
sub end_Task {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result='';
my $status=$Apache::inputtags::status['-1'];
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') {
$result.="\n".'<table border="1">'.
&Apache::inputtags::file_selector('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') {
my $award='SUBMITTED';
&Apache::essayresponse::file_submission('0','bridgetask','portfiles',\$award);
if ($award eq 'SUBMITTED' &&
$Apache::lonhomework::results{"resource.0.bridgetask.portfiles"}) {
$Apache::lonhomework::results{"resource.0.tries"}=
1+$Apache::lonhomework::history{"resource.0.tries"};
}
$Apache::lonhomework::results{"resource.0.award"}=$award;
&Apache::lonhomework::showhash(%Apache::lonhomework::results);
&Apache::structuretags::finalize_storage();
if ($award eq 'SUBMITTED') {
&add_to_queue();
}
}
} elsif ($target eq 'webgrade') {
$result.="\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="end" value="'.
&mt('Throw Away & Stop 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 $result;
}
sub add_to_queue {
my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
my $cnum=$env{'course.'.$cid.'.num'};
my $cdom=$env{'course.'.$cid.'.domain'};
my %data;
#$data{"$symb\0timestamp"}=time;
$data{"$symb\0queue\0$uname\@$udom"}=[$Apache::inputtags::slot_name];
&Apache::lonnet::put('gradingqueue',\%data,$cdom,$cnum);
}
sub show_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\0queue";
my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
$result.="\n<h3>Current Queue</h3><table><tr><th>resource</th><th>user</th><th>Time available for grading</th></tr>";
foreach my $key (sort(keys(%queue))) {
my ($symb,undef,$user) = split("\0",$key);
my ($uname,$udom) = split('@',$user);
my $title=&Apache::lonnet::gettitle($symb);
$result.="<tr><td>$title</td><td>$uname</td><td>";
my $slot=$queue{$key}->[0];
my %slot_data=&Apache::lonnet::get_slot($slot);
$result.="End time: ".&Apache::lonlocal::locallocaltime($slot_data{'endtime'})."</td></tr>";
}
$result.="</table><hr />\n";
return $result;
}
sub decode_queue_key {
my ($key)=@_;
my ($symb,undef,$user) = split("\0",$key);
my ($uname,$udom) = split('@',$user);
return ($symb,$uname,$udom);
}
sub queue_key_locked {
my ($key,$cdom,$cnum)=@_;
my ($key_locked,$value)=
&Apache::lonnet::get('gradingqueue',["$key\0locked"],$cdom,$cnum);
if ($key_locked eq "$key\0locked") {
return $value;
}
return undef;
}
sub pick_from_queue_data {
my ($check_section,$queue,$cdom,$cnum)=@_;
foreach my $key (sort(keys(%$queue))) {
my ($symb,$uname,$udom)=&decode_queue_key($key);
if ($check_section) {
my $section=&Apache::lonnet::getsection($uname,$udom);
if ($section ne $check_section) {
&Apache::lonnet::logthis("not my sec");
next;
}
}
my $slot=$queue->{$key}[0];
my %slot_data=&Apache::lonnet::get_slot($slot);
if ($slot_data{'endtime'} > time) {
&Apache::lonnet::logthis("not time");
next;
}
if (&queue_key_locked($key,$cdom,$cnum)) {
&Apache::lonnet::logthis("someone already has um.");
next;
}
return $key;
}
return undef;
}
sub find_mid_grade {
my ($symb,$cdom,$cnum)=@_;
my $todo=$env{'form.gradingkey'};
my $me=$env{'user.name'}.'@'.$env{'user.domain'};
if ($todo) {
my $who=&queue_key_locked($todo,$cdom,$cnum);
if ($who eq $me) { return $todo; }
}
my $regexp="^$symb\0.*\0locked\$";
my %locks=&Apache::lonnet::dump('gradingqueue',$cdom,$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 get_from_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;
# FIXME need to find if I am 'mid grading'
$todo=&find_mid_grade($symb,$cdom,$cnum);
&Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));
while (1) {
my $starttime=time;
&Apache::lonnet::put('gradingqueue',{"$symb\0timestamp"=>$starttime},
$cdom,$cnum);
&Apache::lonnet::logthis("$starttime");
my $regexp="^$symb\0queue\0";
my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
#make a pass looking for a user in my section
if ($env{'request.course.sec'}) {
&Apache::lonnet::logthis("sce");
$todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
$cdom,$cnum);
&Apache::lonnet::logthis("sce $todo");
}
# no one in our section so look for any user that is ready for grading
if (!$todo) {
&Apache::lonnet::logthis("no sce");
$todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
$cdom,$cnum);
&Apache::lonnet::logthis("no sce $todo");
}
# no user to grade
if (!$todo) { last; }
&Apache::lonnet::logthis("got $todo");
# otherwise found someone so lets try to lock them
my $success=&Apache::lonnet::newput('gradingqueue',
{"$todo\0locked"=>
$env{'user.name'}.'@'.$env{'user.domain'}},
$cdom,$cnum);
# someone else already picked them
&Apache::lonnet::logthis("success $todo");
if ($success ne 'ok') { next; }
my (undef,$endtime)=
&Apache::lonnet::get('gradingqueue',["$symb\0timestamp"],
$cdom,$cnum);
&Apache::lonnet::logthis("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,$value)=
&Apache::lonnet::get('gradingqueue',["$todo"],
$cdom,$cnum);
&Apache::lonnet::logthis("check $key .. $value");
if ($key eq $todo && ref($value)) {
} else {
&Apache::lonnet::del('gradingqueue',["$todo\0locked"],
$cdom,$cnum);
&Apache::lonnet::logthis("del");
next;
}
}
&Apache::lonnet::logthis("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 $result;
}
my %dimension;
sub start_Dimension {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
undef(%dimension);
my $dim_id=$Apache::lonxml::curdepth;
$Apache::bridgetask::dimension=$dim_id;
push(@Apache::bridgetask::dimensionlist,$dim_id);
undef(@Apache::bridgetask::instance);
return '';
}
sub get_instance {
#FIXME just grabbing the first one for now, need
#to randomly pick one until all have been seen
#then start repicking
&Apache::response::pushrandomnumber();
my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
return $order[0];
}
sub end_Dimension {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $result;
if ($target eq 'web') {
my $instance=&get_instance();
$result=$dimension{'intro'}.$dimension{$instance.'.text'};
} elsif ($target eq 'webgrade') {
my $instance=&get_instance();
$result.="\n".'<table>';
foreach my $id (@{$dimension{$instance.'.criterias'}}) {
$result.='<tr><td>'.
$dimension{$instance.'.criteria.'.$id}.'</td></tr>';
}
$result.='</table>';
}
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,$safeeval)=@_;
push(@{$dimension{'instances'}},$Apache::lonxml::curdepth);
push(@Apache::bridgetask::instance,$Apache::lonxml::curdepth);
push(@Apache::bridgetask::instancelist,$Apache::lonxml::curdepth);
return '';
}
sub end_Instance {
my ($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' || $target eq 'webgrade') {
&Apache::lonxml::startredirection();
}
return '';
}
sub end_Criteria {
my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
my $instance_id=$Apache::bridgetask::instance[-1];
if ($target eq 'web' || $target eq 'webgrade') {
my $criteria=&Apache::lonxml::endredirection();
my $id=$Apache::lonxml::curdepth;
$dimension{$instance_id.'.criteria.'.$id}=$criteria;
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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