Annotation of loncom/homework/bridgetask.pm, revision 1.29

1.1       albertel    1: # The LearningOnline Network with CAPA 
                      2: # definition of tags that give a structure to a document
                      3: #
1.29    ! albertel    4: # $Id: bridgetask.pm,v 1.28 2005/05/20 18:53:53 albertel Exp $
1.1       albertel    5: #
                      6: # Copyright Michigan State University Board of Trustees
                      7: #
                      8: # This file is part of the LearningOnline Network with CAPA (LON-CAPA).
                      9: #
                     10: # LON-CAPA is free software; you can redistribute it and/or modify
                     11: # it under the terms of the GNU General Public License as published by
                     12: # the Free Software Foundation; either version 2 of the License, or
                     13: # (at your option) any later version.
                     14: #
                     15: # LON-CAPA is distributed in the hope that it will be useful,
                     16: # but WITHOUT ANY WARRANTY; without even the implied warranty of
                     17: # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
                     18: # GNU General Public License for more details.
                     19: #
                     20: # You should have received a copy of the GNU General Public License
                     21: # along with LON-CAPA; if not, write to the Free Software
                     22: # Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
                     23: #
                     24: # /home/httpd/html/adm/gpl.txt
                     25: #
                     26: # http://www.lon-capa.org/
                     27: #
                     28: ###
                     29: 
                     30: 
                     31: package Apache::bridgetask; 
                     32: 
                     33: use strict;
                     34: use Apache::lonnet;
                     35: use Apache::File();
                     36: use Apache::lonmenu;
                     37: use Apache::lonlocal;
                     38: use Apache::lonxml;
                     39: use Time::HiRes qw( gettimeofday tv_interval );
1.9       albertel   40: 
1.1       albertel   41: BEGIN {
                     42:     &Apache::lonxml::register('Apache::bridgetask',('Task','IntroParagraph','Dimension','Instance','InstanceText','Criteria','ClosingParagraph'));
                     43: }
                     44: 
1.9       albertel   45: sub initialize_bridgetask {
                     46:     # id of current Dimension, 0 means that no dimension is current 
                     47:     # (inside <Task> only)
                     48:     $Apache::bridgetask::dimension='';
                     49:     # list of all Dimension ids seen
                     50:     @Apache::bridgetask::dimensionlist=();
1.20      albertel   51:     # mandatory attribute of all Dimensions seen
                     52:     %Apache::bridgetask::dimensionmandatory=();
1.9       albertel   53:     # list of all current Instance ids
                     54:     @Apache::bridgetask::instance=();
                     55:     # list of all Instance ids seen in this problem
                     56:     @Apache::bridgetask::instancelist=();
1.15      albertel   57:     # key of queud user data that we are currently grading
                     58:     $Apache::bridgetask::queue_key='';
1.9       albertel   59: }
                     60: 
1.4       albertel   61: sub proctor_check_auth {
1.22      albertel   62:     my ($slot_name,$slot)=@_;
1.11      albertel   63:     my $user=$env{'form.proctorname'};
                     64:     my $domain=$env{'form.proctordomain'};
1.4       albertel   65:     
                     66:     my @allowed=split(",",$slot->{'proctor'});
                     67:     foreach my $possible (@allowed) {
                     68: 	my ($puser,$pdom)=(split('@',$possible));
                     69: 	if ($puser eq $user && $pdom eq $domain) {
1.11      albertel   70: 	    my $authhost=&Apache::lonnet::authenticate($puser,$env{'form.proctorpassword'},$pdom);
1.4       albertel   71: 	    if ($authhost ne 'no_host') {
1.23      albertel   72: 		my $version=
                     73: 		    $Apache::lonhomework::results{'resource.version'}=
1.27      albertel   74: 		    ++$Apache::lonhomework::history{'resource.version'};
1.23      albertel   75: 		$Apache::lonhomework::results{"resource.$version.checkedin"}=
1.4       albertel   76: 		    $user.'@'.$domain;
1.23      albertel   77: 		$Apache::lonhomework::results{"resource.$version.checkedin.slot"}=
1.22      albertel   78: 		    $slot_name;
1.28      albertel   79: 		foreach my $key (keys(%Apache::lonhomework::history)) {
                     80: 		    if ($key=~/^resource\.0\./) {
                     81: 			$Apache::lonhomework::results{$key}='';
                     82: 		    }
                     83: 		}
1.4       albertel   84: 		return 1;
                     85: 	    }
                     86: 	}
                     87:     }
                     88:     return 0;
                     89: }
                     90: 
1.25      albertel   91: sub get_version {
1.29    ! albertel   92:     my ($version,$previous);
1.25      albertel   93:     if ($env{'form.previousversion'} && 
                     94: 	defined($Apache::lonhomework::history{'resource.'.$env{'form.previousversion'}.'.status'})) {
1.29    ! albertel   95: 	$version=$env{'form.previousversion'};
        !            96: 	$previous=1;
        !            97:     } else {
        !            98: 	$version=$Apache::lonhomework::history{'resource.version'};
        !            99: 	$previous=0;
        !           100:     }
        !           101:     if (wantarray) {
        !           102: 	return ($version,$previous);
1.25      albertel  103:     }
1.29    ! albertel  104:     return $version;
1.25      albertel  105: }
                    106: 
1.8       albertel  107: sub add_previous_version_button {
1.25      albertel  108:     my ($status)=@_;
1.8       albertel  109:     my $result;
1.29    ! albertel  110:     if ($Apache::lonhomework::history{'resource.version'} eq '') {
1.25      albertel  111: 	return '';
                    112:     }
1.29    ! albertel  113:     if ($Apache::lonhomework::history{'resource.version'} < 2 &&
        !           114: 	$status ne 'NEEDS_CHECKIN') {
1.25      albertel  115: 	return '';
                    116:     }
1.29    ! albertel  117:     my $version=&get_version();
        !           118:     if ($env{'form.previousversion'} ne '' &&
        !           119: 	$env{'form.previousversion'} eq $version) {
        !           120: 	$result.="<h3>".&mt("Showing previous version [_1]",$version).
        !           121: 	    "</h3>\n";
        !           122:     }
        !           123:     my @to_show;
        !           124:     foreach my $test_version (1..$Apache::lonhomework::history{'resource.version'}) {
        !           125: 	if (defined($Apache::lonhomework::history{'resource.'.$test_version.'.status'})) {
        !           126: 	    push(@to_show,$test_version);
        !           127: 	}
        !           128:     }
        !           129:     my $list='<option>'.
        !           130: 	join("</option>\n<option>",@to_show).
        !           131: 	     "</option>\n";
        !           132:     $result.='<form name="getprevious" method="POST" action="';
        !           133:     my $uri=$env{'request.uri'};
        !           134:     if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
        !           135:     $result.=$uri.'">'.
        !           136: 	&mt(' Show a previously done version: [_1]','<select onchange="this.form.submit()" name="previousversion">
        !           137: <option>'.&mt('Pick one').'</option>
        !           138: '.$list.'
        !           139: </select>')."</form>";
1.8       albertel  140:     return $result;
                    141: }
                    142: 
1.13      albertel  143: sub add_grading_button {
1.29    ! albertel  144:     my $result=' <input type="submit" name="gradeasubmission" value="'.
1.13      albertel  145: 	&mt("Get a submission to grade").'" />';
                    146:     $result.='<input type="hidden" name="grade_target" value="webgrade" />';
                    147:     return $result;
                    148: }
                    149: 
1.22      albertel  150: sub add_request_another_attempt_button {
1.25      albertel  151:     my $result;
                    152:     $result.=' <input type="submit" name="requestattempt" value="'.
                    153: 	&mt("Request another attempt").'" />';
                    154:     return $result;
1.22      albertel  155: }
                    156: 
1.1       albertel  157: sub start_Task {
                    158:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    159: 
1.4       albertel  160:     my ($status,$accessmsg,$slot);
1.16      albertel  161:     if ($target ne 'webgrade') {
                    162: 	&Apache::structuretags::initialize_storage();
                    163: 	&Apache::lonhomework::showhash(%Apache::lonhomework::history);
                    164:     } 
                    165: 
1.4       albertel  166:     $Apache::lonhomework::parsing_a_task=1;
1.1       albertel  167:     #should get back a <html> or the neccesary stuff to start XML/MathML
                    168:     my ($result,$head_tag_start,$body_tag_start,$form_tag_start)=
                    169: 	&Apache::structuretags::page_start($target,$token,$tagstack,$parstack,$parser,$safeeval);
1.16      albertel  170:     
1.8       albertel  171:     if ($target eq 'web') {
1.13      albertel  172: 	if ($Apache::lonhomework::modifygrades) {
                    173: 	    $body_tag_start.='<form name="gradesubmission" method="POST" action="';
                    174: 	    my $uri=$env{'request.uri'};
                    175: 	    if ($env{'request.enc'}) { $uri=&Apache::lonenc::encrypted($uri); }
                    176: 	    $body_tag_start.=$uri.'">'.&add_grading_button()."</form>";
                    177: 	}
1.8       albertel  178:     }
1.21      albertel  179:     if ($target eq 'web' || ($target eq 'grade' && !$env{'form.webgrade'}) || $target eq 'answer' ||
1.1       albertel  180: 	$target eq 'tex') {
1.29    ! albertel  181: 	my ($version,$previous)=&get_version();
1.14      albertel  182: 	($status,$accessmsg,my $slot_name,$slot) = 
1.4       albertel  183: 	    &Apache::lonhomework::check_task_access('0');
1.9       albertel  184: 	push(@Apache::inputtags::status,$status);
1.14      albertel  185: 	$Apache::inputtags::slot_name=$slot_name;
1.1       albertel  186: 	my $expression='$external::datestatus="'.$status.'";';
1.23      albertel  187: 	$expression.='$external::gradestatus="'.$Apache::lonhomework::history{"resource.$version.solved"}.'";';
1.1       albertel  188: 	&Apache::run::run($expression,$safeeval);
                    189: 	&Apache::lonxml::debug("Got $status");
1.25      albertel  190: 	$body_tag_start.=&add_previous_version_button($status);
1.29    ! albertel  191: 	if (!$previous && (
        !           192: 			   ( $status eq 'CLOSED' ) ||
        !           193: 			   ( $status eq 'BANNED') ||
        !           194: 			   ( $status eq 'UNAVAILABLE') ||
        !           195: 			   ( $status eq 'NOT_IN_A_SLOT') ||
        !           196: 			   ( $status eq 'NEEDS_CHECKIN') ||
        !           197: 			   ( $status eq 'WAITING_FOR_GRADE') ||
        !           198: 			   ( $status eq 'INVALID_ACCESS') )) {
1.1       albertel  199: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
                    200: 	    if ( $target eq "web" ) {
1.4       albertel  201: 		$result.= $head_tag_start.'</head>'.$body_tag_start;
                    202: 		my $msg;
1.1       albertel  203: 		if ($status eq 'UNAVAILABLE') {
                    204: 		    $msg.='<h1>'.&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'</h1>';
1.3       albertel  205: 		} elsif ($status eq 'NOT_IN_A_SLOT') {
                    206: 		    $msg.='<h1>'.&mt('You are not currently signed up to work at this time and/or place.').'</h1>';
1.4       albertel  207: 		} elsif ($status eq 'NEEDS_CHECKIN') {
                    208: 		    $msg.='<h1>'.&mt('You need the Proctor to validate you.').
                    209: 			'</h1>'.&proctor_validation_screen($slot);
1.22      albertel  210: 		} elsif ($status eq 'WAITING_FOR_GRADE') {
                    211: 		    $msg.='<h1>'.&mt('Your submission is in the grading queue.').'</h1>';
1.1       albertel  212: 		} elsif ($status ne 'NOT_YET_VIEWED') {
                    213: 		    $msg.='<h1>'.&mt('Not open to be viewed').'</h1>';
                    214: 		}
                    215: 		if ($status eq 'CLOSED' || $status eq 'INVALID_ACCESS') {
                    216: 		    $msg.='The problem '.$accessmsg;
                    217: 		}
                    218: 		$result.=$msg.'<br />';
                    219: 	    } elsif ($target eq 'tex') {
                    220: 		$result.='\begin{document}\noindent \vskip 1 mm  \begin{minipage}{\textwidth}\vskip 0 mm';
                    221: 		if ($status eq 'UNAVAILABLE') {
                    222: 		    $result.=&mt('Unable to determine if this resource is open due to network problems. Please try again later.').'\vskip 0 mm ';
                    223: 		} else {
                    224: 		    $result.=&mt('Problem is not open to be viewed. It')." $accessmsg \\vskip 0 mm ";
                    225: 		}
1.22      albertel  226: 	    } elsif ($target eq 'grade' && !$env{'form.webgrade'}) {
1.4       albertel  227: 		if ($status eq 'NEEDS_CHECKIN') {
1.22      albertel  228: 		    if (&proctor_check_auth($slot_name,$slot)) {
1.4       albertel  229: 			#FIXME immeadiatly add this to the grading queue
                    230:                         #      with slot->{'endtime'} for when grading can 
                    231:                         #      begin on this resource
1.22      albertel  232: 			# FIXME I think the above is done by default,
                    233:                         #        need to check that
                    234:                         #        failure doesn't do this.
1.4       albertel  235:  		    }
                    236: 		}
1.1       albertel  237: 	    }
                    238: 	} elsif ($target eq 'web') {
                    239: 	    my $name= &Apache::structuretags::get_resource_name($parstack,$safeeval);
                    240: 	    $result.="$head_tag_start<title>$name</title></head>
                    241:               $body_tag_start \n $form_tag_start".	
                    242: 	      '<input type="hidden" name="submitted" value="yes" />';
                    243: 	    # if we are viewing someone else preserve that info
1.11      albertel  244: 	    if (defined $env{'form.grade_symb'}) {
1.1       albertel  245: 		foreach my $field ('symb','courseid','domain','username') {
                    246: 		    $result .= '<input type="hidden" name="grade_'.$field.
1.11      albertel  247: 			'" value="'.$env{"form.grade_$field"}.'" />'."\n";
1.1       albertel  248: 		}
                    249: 	    }
1.29    ! albertel  250: 	    my ($version,$previous)=&get_version();
1.25      albertel  251: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
1.22      albertel  252: 		$result.='<h1><font color="red">'.&mt('Did not pass').'</font></h1>';
1.29    ! albertel  253: 		if (!$previous) {
        !           254: 		    $result.=&add_request_another_attempt_button();
        !           255: 		}
1.22      albertel  256: 	    }
1.25      albertel  257: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass') {
1.22      albertel  258: 		$result.='<h1><font color="green">'.&mt('Passed').'</font></h1>';
                    259: 	    }
1.1       albertel  260: 	}
1.21      albertel  261:     } elsif ( ($target eq 'grade' && $env{'form.webgrade'}) ||
                    262: 	      $target eq 'webgrade') {
                    263: 	if ($target eq 'webgrade') {
                    264: 	    $result.=$head_tag_start.$body_tag_start.$form_tag_start;
                    265: 	    $result.='<input type="hidden" name="webgrade" value="yes" />';
                    266: 	    $result.=&show_queue();
                    267: 	}
1.15      albertel  268: 	my $todo=&get_from_queue();
                    269: 	if ($todo) {
1.16      albertel  270: 	    &setup_env_for_other_user($todo,$safeeval);
1.15      albertel  271: 	    my ($symb,$uname,$udom)=&decode_queue_key($todo);
1.16      albertel  272: 	    $result.="\n".'<table><tr><td>Found '.
                    273: 		&Apache::lonnet::gettitle($symb).' for '.$uname.' at '.$udom.'</td></tr></table>';
1.15      albertel  274: 	    $result.='<input type="hidden" name="gradingkey" value="'.
1.16      albertel  275: 		&Apache::lonnet::escape($todo).'" />';
1.15      albertel  276: 	    $Apache::bridgetask::queue_key=$todo;
1.16      albertel  277: 	    &Apache::structuretags::initialize_storage();
                    278: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::history);
1.18      albertel  279: 	    $result.="\n".'<table width="100%" style="width:100%" border="1">';
1.15      albertel  280: 	} else {
1.21      albertel  281: 	    if ($target eq 'webgrade') {
                    282: 		$result.="\n".
                    283: 		    '<table><tr><td>No user to be graded.</td></tr></table>';
                    284: 	    }
1.15      albertel  285: 	    my $bodytext=&Apache::lonxml::get_all_text("/task",$parser);
                    286: 	}
1.1       albertel  287:     } else {
                    288: 	# page_start returned a starting result, delete it if we don't need it
                    289: 	$result = '';
                    290:     }
                    291:     return $result;
                    292: }
                    293: 
                    294: sub end_Task {
                    295:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    296:     my $result='';
                    297:     my $status=$Apache::inputtags::status['-1'];
1.29    ! albertel  298:     my ($version,$previous)=&get_version();
1.1       albertel  299:     if ($target eq 'grade' || $target eq 'web' || $target eq 'answer' ||
1.15      albertel  300: 	$target eq 'tex') {
1.1       albertel  301: 	if (
1.11      albertel  302: 	    (($target eq 'web') && ($env{'request.state'} ne 'construct')) ||
1.1       albertel  303: 	    ($target eq 'answer') || ($target eq 'tex')
                    304: 	   ) {
                    305: 	    if ($target eq 'web') {
1.29    ! albertel  306: 		if ($status eq 'CAN_ANSWER' && !$previous) {
1.15      albertel  307: 		    $result.="\n".'<table border="1">'.
1.28      albertel  308: 			&Apache::inputtags::file_selector("$version.0",
                    309: 							  "bridgetask","*",
1.9       albertel  310: 							  'portfolioonly').
                    311: 							  "</table>";
                    312: 		    $result.=&Apache::inputtags::gradestatus('0');
                    313: 		}
1.13      albertel  314: 	    } 
                    315: 	    if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel  316: 		$result.=&Apache::lonxml::xmlend().'</html>';
                    317: 	    }
                    318: 	}
1.29    ! albertel  319: 	if ($target eq 'grade' && !$env{'form.webgrade'} && !$previous) {
1.12      albertel  320: 	    my $award='SUBMITTED';
1.28      albertel  321: 	    &Apache::essayresponse::file_submission("$version.0",'bridgetask',
1.20      albertel  322: 						    'portfiles',\$award);
1.14      albertel  323: 	    if ($award eq 'SUBMITTED' &&
1.28      albertel  324: 		$Apache::lonhomework::results{"resource.$version.0.bridgetask.portfiles"}) {
                    325: 		$Apache::lonhomework::results{"resource.0.tries"}=
                    326: 		    $Apache::lonhomework::results{"resource.$version.0.tries"}=
                    327: 		    1+$Apache::lonhomework::history{"resource.$version.0.tries"};
                    328: 
                    329: 		$Apache::lonhomework::results{"resource.0.award"}=
                    330: 		    $Apache::lonhomework::results{"resource.$version.0.award"}=
                    331: 		    $award;
1.10      albertel  332: 	    }
1.4       albertel  333: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
                    334: 	    &Apache::structuretags::finalize_storage();
1.14      albertel  335: 	    if ($award eq 'SUBMITTED') {
                    336: 		&add_to_queue();
                    337: 	    }
1.1       albertel  338: 	}
1.20      albertel  339: 	if ($target eq 'grade' && $env{'form.webgrade'}) {
                    340: 	    my $optional_required=
                    341: 		&Apache::lonxml::get_param('OptionalRequired',$parstack,
                    342: 					   $safeeval);
                    343: 	    my $optional_passed=0;
                    344: 	    my $mandatory_failed=0;
                    345: 	    my $ungraded=0;
                    346: 	    my $review=0;   
1.21      albertel  347: 	    &Apache::lonhomework::showhash(%Apache::lonhomework::results);
1.20      albertel  348: 	    foreach my $dim_id (@Apache::bridgetask::dimensionlist) {
                    349: 		my $status=
1.25      albertel  350: 		    $Apache::lonhomework::results{"resource.$version.$dim_id.status"};
1.20      albertel  351: 		my $mandatory=
                    352: 		    ($Apache::bridgetask::dimensionmandatory{$dim_id} ne 'N');
                    353: 		if ($status eq 'pass') {
                    354: 		    if (!$mandatory) { $optional_passed++; }
                    355: 		} elsif ($status eq 'fail') {
                    356: 		    if ($mandatory) { $mandatory_failed++; }
                    357: 		} elsif ($status eq 'ungraded') {
                    358: 		    $ungraded++;
                    359: 		} elsif ($status eq 'review') {
                    360: 		    $review++;
                    361: 		}	
                    362: 	    }
                    363: 	    if ($optional_passed < $optional_required) {
                    364: 		$mandatory_failed++;
                    365: 	    }
1.21      albertel  366: 	    &Apache::lonxml::debug("all dim ".join(':',@Apache::bridgetask::dimensionlist)."results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
                    367: 	    $Apache::lonhomework::results{'resource.grader'}=
1.20      albertel  368: 		$env{'user.name'}.'@'.$env{'user.domain'};
                    369: 	    if ($review) {
1.25      albertel  370: 		$Apache::lonhomework::results{"resource.$version.status"}='review';
1.20      albertel  371: 		&move_to_review_queue();
                    372: 	    } elsif ($ungraded) {
1.25      albertel  373: 		$Apache::lonhomework::results{"resource.$version.status"}='ungraded';
1.20      albertel  374: 		&check_queue_unlock();
                    375: 	    } elsif ($mandatory_failed) {
1.25      albertel  376: 		$Apache::lonhomework::results{"resource.$version.status"}='fail';
                    377: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='incorrect_by_override';
                    378: 		$Apache::lonhomework::results{"resource.$version.0.award"}='INCORRECT';
                    379: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='0';
1.20      albertel  380: 		&remove_from_queue();
                    381: 	    } else {
1.25      albertel  382: 		$Apache::lonhomework::results{"resource.$version.status"}='pass';
                    383: 		$Apache::lonhomework::results{"resource.$version.0.solved"}='correct_by_override';
                    384: 		$Apache::lonhomework::results{"resource.$version.0.award"}='EXACT_ANS';
                    385: 		$Apache::lonhomework::results{"resource.$version.0.awarded"}='1';
1.20      albertel  386: 		&remove_from_queue();
                    387: 	    }
1.26      albertel  388: 	    $Apache::lonhomework::results{"resource.status"}=
                    389: 		$Apache::lonhomework::results{"resource.$version.status"};
1.28      albertel  390: 	    if (defined($Apache::lonhomework::results{"resource.$version.0.awarded"})) {
1.26      albertel  391: 		$Apache::lonhomework::results{"resource.0.award"}=
                    392: 		    $Apache::lonhomework::results{"resource.$version.award"};
                    393: 		$Apache::lonhomework::results{"resource.0.awarded"}=
                    394: 		    $Apache::lonhomework::results{"resource.$version.awarded"};
                    395: 		$Apache::lonhomework::results{"resource.0.solved"}=
                    396: 		    $Apache::lonhomework::results{"resource.$version.solved"};
1.25      albertel  397: 	    }
1.21      albertel  398: 	    &Apache::structuretags::finalize_storage();
1.20      albertel  399: 	}
1.15      albertel  400:     } elsif ($target eq 'webgrade') {
1.18      albertel  401: 	$result.="</table>\n<hr />";
1.20      albertel  402: 	#$result.='<input type="submit" name="next" value="'.
                    403: 	#    &mt('Save &amp; Next').'" /> ';
                    404: 	#$result.='<input type="submit" name="end" value="'.
                    405: 	#    &mt('Save &amp; Stop Grading').'" /> ';
                    406: 	#$result.='<input type="submit" name="throwaway" value="'.
                    407: 	#    &mt('Throw Away &amp; Stop Grading').'" /> ';
                    408: 	#$result.='<input type="submit" name="save" value="'.
                    409: 	#    &mt('Save Partial Grade and Continue Grading').'" /> ';
1.15      albertel  410: 	$result.='</form>'.&Apache::loncommon::endbodytag().'</html>';
1.1       albertel  411:     } elsif ($target eq 'meta') {
1.2       albertel  412: 	$result.='<parameter part="0" package="Task"></parameter>'."\n";
1.1       albertel  413: 	#$result.=&Apache::response::meta_part_order();
                    414: 	#$result.=&Apache::response::meta_response_order();
                    415:     }
1.4       albertel  416:     undef($Apache::lonhomework::parsing_a_task);
1.1       albertel  417:     return $result;
                    418: }
                    419: 
1.21      albertel  420: sub move_to_review_queue {
                    421:     &Apache::lonxml::debug("Want to move");
                    422: }
                    423: 
                    424: sub check_queue_unlock {
                    425:     &Apache::lonxml::debug("Want to unlock?");
                    426: }
                    427: 
                    428: sub remove_from_queue {
1.27      albertel  429:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    430:     my $cnum=$env{'course.'.$cid.'.num'};
                    431:     my $cdom=$env{'course.'.$cid.'.domain'};
                    432:     my $key="$symb\0queue\0$uname\@$udom";
                    433:     my @keys=($key,"$key\0locked");
                    434:     &Apache::lonnet::del('gradingqueue',\@keys,$cdom,$cnum);
1.21      albertel  435: }
                    436: 
1.16      albertel  437: sub setup_env_for_other_user {
                    438:     my ($queue_key,$safeeval)=@_;
                    439:     my ($symb,$uname,$udom)=&decode_queue_key($queue_key);
                    440:     $env{'form.grade_symb'}=$symb;
                    441:     $env{'form.grade_domain'}=$udom;
                    442:     $env{'form.grade_username'}=$uname;
                    443:     $env{'form.grade_courseid'}=$env{'request.course.id'};
                    444:     &Apache::lonxml::initialize_rndseed($safeeval);
                    445: }
                    446: 
1.14      albertel  447: sub add_to_queue {
                    448:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    449:     my $cnum=$env{'course.'.$cid.'.num'};
                    450:     my $cdom=$env{'course.'.$cid.'.domain'};
                    451:     my %data;
                    452:     $data{"$symb\0queue\0$uname\@$udom"}=[$Apache::inputtags::slot_name];
                    453:     &Apache::lonnet::put('gradingqueue',\%data,$cdom,$cnum);
                    454: }
                    455: 
                    456: sub show_queue {
                    457:     my $result;
                    458:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    459:     my $cnum=$env{'course.'.$cid.'.num'};
                    460:     my $cdom=$env{'course.'.$cid.'.domain'};
1.16      albertel  461:     my $regexp="^$symb\0";
1.14      albertel  462:     my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
1.27      albertel  463:     $result.="\n<h3>Current Queue</h3><table border='1'><tr><th>resource</th>".
1.20      albertel  464: 	"<th>user</th><th>type</th><th>data</th></tr>";
1.14      albertel  465:     foreach my $key (sort(keys(%queue))) {
1.16      albertel  466: 	if ($key=~/locked$/) {
                    467: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                    468: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel  469: 	    $result.="<tr><td>$title</td><td>$uname</td>";
1.16      albertel  470: 	    $result.='<td>lock</td><td>'.$queue{$key}.'</td></tr>';
                    471: 	} elsif ($key=~/timestamp$/) {
                    472: 	    my ($symb,undef) = split("\0",$key);
                    473: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel  474: 	    $result.="<tr><td>$title</td><td></td>";
1.16      albertel  475: 	    $result.='<td>last queue modification time</td><td>'.
                    476: 		&Apache::lonlocal::locallocaltime($queue{$key})."</td></tr>";
                    477: 	} else {
                    478: 	    my ($symb,$uname,$udom) = &decode_queue_key($key);
                    479: 	    my $title=&Apache::lonnet::gettitle($symb);
1.27      albertel  480: 	    $result.="<tr><td>$title</td><td>$uname</td>";
1.16      albertel  481: 	    my $slot=$queue{$key}->[0];
                    482: 	    my %slot_data=&Apache::lonnet::get_slot($slot);
1.27      albertel  483: 	    $result.='<td>queue entry</td><td>Slot: '.$slot.' End time: '.
1.20      albertel  484: 		&Apache::lonlocal::locallocaltime($slot_data{'endtime'}).
                    485: 		"</td></tr>";
1.16      albertel  486: 	}
1.14      albertel  487:     }
1.15      albertel  488:     $result.="</table><hr />\n";
1.14      albertel  489:     return $result;
                    490: }
                    491: 
                    492: sub decode_queue_key {
                    493:     my ($key)=@_;
                    494:     my ($symb,undef,$user) = split("\0",$key);
                    495:     my ($uname,$udom) = split('@',$user);
                    496:     return ($symb,$uname,$udom);
                    497: }
                    498: 
                    499: sub queue_key_locked {
1.15      albertel  500:     my ($key,$cdom,$cnum)=@_;
1.14      albertel  501:     my ($key_locked,$value)=
                    502: 	&Apache::lonnet::get('gradingqueue',["$key\0locked"],$cdom,$cnum);
                    503:     if ($key_locked eq "$key\0locked") {
                    504: 	return $value;
                    505:     }
                    506:     return undef;
                    507: }
                    508: 
                    509: sub pick_from_queue_data {
1.15      albertel  510:     my ($check_section,$queue,$cdom,$cnum)=@_;
1.16      albertel  511:     foreach my $key (keys(%$queue)) {
1.14      albertel  512: 	my ($symb,$uname,$udom)=&decode_queue_key($key);
                    513: 	if ($check_section) {
                    514: 	    my $section=&Apache::lonnet::getsection($uname,$udom);
1.17      albertel  515: 	    if ($section eq $check_section) {
                    516: 		&Apache::lonnet::logthis("my sec");
1.15      albertel  517: 		next;
                    518: 	    }
1.14      albertel  519: 	}
                    520: 	my $slot=$queue->{$key}[0];
                    521: 	my %slot_data=&Apache::lonnet::get_slot($slot);
1.15      albertel  522: 	if ($slot_data{'endtime'} > time) { 
                    523: 	    &Apache::lonnet::logthis("not time");
                    524: 	    next;
                    525: 	}
                    526: 	if (&queue_key_locked($key,$cdom,$cnum)) {
                    527: 	    &Apache::lonnet::logthis("someone already has um.");
                    528: 	    next;
                    529: 	}
1.14      albertel  530: 	return $key;
                    531:     }
                    532:     return undef;
                    533: }
                    534: 
1.15      albertel  535: sub find_mid_grade {
                    536:     my ($symb,$cdom,$cnum)=@_;
1.16      albertel  537:     my $todo=&Apache::lonnet::unescape($env{'form.gradingkey'});
1.15      albertel  538:     my $me=$env{'user.name'}.'@'.$env{'user.domain'};
                    539:     if ($todo) {
                    540: 	my $who=&queue_key_locked($todo,$cdom,$cnum);
                    541: 	if ($who eq $me) { return $todo; }
                    542:     }
                    543:     my $regexp="^$symb\0.*\0locked\$";
                    544:     my %locks=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
                    545:     foreach my $key (keys(%locks)) {
                    546: 	my $who=$locks{$key};
                    547: 	if ($who eq $me) {
                    548: 	    $todo=$key;
                    549: 	    $todo=~s/\0locked$//;
                    550: 	    return $todo;
                    551: 	}
                    552:     }
                    553:     return undef;
                    554: }
                    555: 
1.14      albertel  556: sub get_from_queue {
                    557:     my $result;
                    558:     my ($symb,$cid,$udom,$uname)=&Apache::lonxml::whichuser();
                    559:     my $cnum=$env{'course.'.$cid.'.num'};
                    560:     my $cdom=$env{'course.'.$cid.'.domain'};
                    561:     my $todo;
1.15      albertel  562:     # FIXME need to find if I am 'mid grading'
                    563:     $todo=&find_mid_grade($symb,$cdom,$cnum);
                    564:     &Apache::lonnet::logthis("found ".join(':',&decode_queue_key($todo)));
1.16      albertel  565:     if ($todo) { return $todo; }
1.14      albertel  566:     while (1) {
                    567: 	my $starttime=time;
                    568: 	&Apache::lonnet::put('gradingqueue',{"$symb\0timestamp"=>$starttime},
                    569: 			     $cdom,$cnum);
1.15      albertel  570: 	&Apache::lonnet::logthis("$starttime");
1.14      albertel  571: 	my $regexp="^$symb\0queue\0";
                    572: 	my %queue=&Apache::lonnet::dump('gradingqueue',$cdom,$cnum,$regexp);
                    573: 	#make a pass looking for a user in my section
                    574: 	if ($env{'request.course.sec'}) {
1.15      albertel  575: 	    &Apache::lonnet::logthis("sce");
                    576: 	    $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
                    577: 					$cdom,$cnum);
                    578: 	    &Apache::lonnet::logthis("sce $todo");
1.14      albertel  579: 	}
                    580: 	# no one in our section so look for any user that is ready for grading
                    581: 	if (!$todo) {
1.15      albertel  582: 	    &Apache::lonnet::logthis("no sce");
                    583: 	    $todo=&pick_from_queue_data($env{'request.course.sec'},\%queue,
                    584: 					$cdom,$cnum);
                    585: 	    &Apache::lonnet::logthis("no sce $todo");
1.14      albertel  586: 	}
                    587: 	# no user to grade 
                    588: 	if (!$todo) { last; }
1.15      albertel  589: 	&Apache::lonnet::logthis("got $todo");
1.14      albertel  590: 	# otherwise found someone so lets try to lock them
                    591: 	my $success=&Apache::lonnet::newput('gradingqueue',
                    592: 					    {"$todo\0locked"=>
                    593: 						 $env{'user.name'}.'@'.$env{'user.domain'}},
                    594: 					   $cdom,$cnum);
                    595: 	# someone else already picked them
1.15      albertel  596: 	&Apache::lonnet::logthis("success $todo");
1.14      albertel  597: 	if ($success ne 'ok') { next; }
                    598: 	my (undef,$endtime)=
                    599: 	    &Apache::lonnet::get('gradingqueue',["$symb\0timestamp"],
                    600: 				 $cdom,$cnum);
1.15      albertel  601: 	&Apache::lonnet::logthis("emd  $endtime");
1.14      albertel  602: 	# someone else already modified the queue, 
                    603: 	# perhaps our picked user wass already fully graded between
                    604: 	# when we picked him and when we locked his record? so lets
                    605: 	# double check.
                    606: 	if ($endtime != $starttime) {
                    607: 	    my ($key,$value)=
                    608: 		&Apache::lonnet::get('gradingqueue',["$todo"],
                    609: 				     $cdom,$cnum);
1.15      albertel  610: 	    &Apache::lonnet::logthis("check  $key .. $value");
1.14      albertel  611: 	    if ($key eq $todo && ref($value)) {
                    612: 	    } else {
                    613: 		&Apache::lonnet::del('gradingqueue',["$todo\0locked"],
                    614: 				     $cdom,$cnum);
1.15      albertel  615: 		&Apache::lonnet::logthis("del");
1.14      albertel  616: 		next;
                    617: 	    }
                    618: 	}
1.15      albertel  619: 	&Apache::lonnet::logthis("last $todo");
1.14      albertel  620: 	last;
                    621:     }
                    622:     return $todo;
                    623: }
                    624: 
1.1       albertel  625: sub start_ClosingParagraph {
                    626:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    627:     my $result;
                    628:     if ($target eq 'web') {
1.13      albertel  629:     } elsif ($target eq 'webgrade') {
                    630: 	&Apache::lonxml::startredirection();
1.1       albertel  631:     }
                    632:     return $result;
                    633: }
                    634: 
                    635: sub end_ClosingParagraph {
                    636:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    637:     my $result;
                    638:     if ($target eq 'web') {
1.13      albertel  639:     } elsif ($target eq 'webgrade') {
                    640: 	&Apache::lonxml::endredirection();
1.1       albertel  641:     }
                    642:     return $result;
                    643: }
                    644: 
1.19      albertel  645: sub get_id {
                    646:     my ($parstack,$safeeval)=@_;
                    647:     my $id=&Apache::lonxml::get_param('id',$parstack,$safeeval);
                    648:     if (!$id) { $id=$Apache::lonxml::curdepth; }
                    649:     return $id;
                    650: }
                    651: 
1.1       albertel  652: my %dimension;
                    653: sub start_Dimension {
                    654:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    655:     undef(%dimension);
1.19      albertel  656:     my $dim_id=&get_id($parstack,$safeeval);
1.9       albertel  657:     $Apache::bridgetask::dimension=$dim_id;
                    658:     push(@Apache::bridgetask::dimensionlist,$dim_id);
                    659:     undef(@Apache::bridgetask::instance);
1.20      albertel  660:     $Apache::bridgetask::dimensionmandatory{$dim_id}=
                    661: 	&Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel  662:     return '';
                    663: }
                    664: 
1.13      albertel  665: sub get_instance {
                    666:     #FIXME just grabbing the first one for now, need
                    667:     #to randomly pick one until all have been seen
                    668:     #then start repicking
                    669:     &Apache::response::pushrandomnumber();
                    670:     my @order=&Math::Random::random_permutation(@{$dimension{'instances'}});
1.29    ! albertel  671:     my $num=@order;
        !           672:     my $version=&get_version();
        !           673:     my $which=($version-1)%$num;
        !           674:     return $order[$which];
1.13      albertel  675: }
                    676: 
1.18      albertel  677: {
                    678:     my $last_link;
                    679:     sub end_Dimension {
                    680: 	my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    681: 	my $result;
1.25      albertel  682: 	my $dim=&get_id($parstack,$safeeval);
1.19      albertel  683: 	my $instance=&get_instance();
1.25      albertel  684: 	my $version=&get_version();
1.18      albertel  685: 	if ($target eq 'web') {
                    686: 	    $result=$dimension{'intro'}.$dimension{$instance.'.text'};
1.26      albertel  687: 	    if ($Apache::lonhomework::history{"resource.$version.status"} eq 'pass' ||
                    688: 		$Apache::lonhomework::history{"resource.$version.status"} eq 'fail') {
1.22      albertel  689: 		foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.25      albertel  690: 		    my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
                    691: 		    my $comment=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"};
1.22      albertel  692: 		    $result.='<table border="1"><tr><td>';
                    693: 		    if ($status eq 'fail') {
                    694: 			$result.='<font color="red">'.&mt('Did not pass').'</font>';
                    695: 		    } elsif ($status eq 'pass') {
                    696: 			$result.='<font color="green">'.&mt('Passed').'</font>';
                    697: 		    } else {
                    698: 			&Apache::lonxml::error("Student viewing a graded bridgetask was show a status of $status");
                    699: 		    }
                    700: 		    $result.='</td></tr><tr><td>';
1.25      albertel  701: 		    if ($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}) {
                    702: 			$result.=&mt('Comment from grader: ').$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}.'</td></tr><tr><td>';
1.22      albertel  703: 		    }
                    704: 		    $result.=$dimension{$instance.'.criteria.'.$id}.
                    705: 			'</td></tr></table>';
                    706: 		}
                    707: 	    }
1.18      albertel  708: 	} elsif ($target eq 'webgrade') {
                    709: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
                    710: 		my $link='criteria_'.$instance.'_'.$id;
1.25      albertel  711: 		my $status=$Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.status"};
1.19      albertel  712: 		$result.='<tr><td width="100%" valign="top">'.
1.18      albertel  713: 		    '<a name="'.$link.'" />'.
                    714: 		    '<a name="next_'.$last_link.'" />'.
                    715: 		    '<br /><textarea enabled="false" style="width:100%" rows="8" width="25" wrap="hard">'.$dimension{$instance.'.criteria.'.$id}.'</textarea>'.
                    716: 		    #$dimension{$instance.'.criteria.'.$id}.
                    717: 		    '</td>'.
1.19      albertel  718: 		    '<td><nobr>Additional Comment for Student</nobr> <br />'.
1.25      albertel  719: 		    '<textarea style="width:100%" rows="8" width="25" wrap="hard" name="HWVAL_comment_'.$link.'">'.&HTML::Entities::encode($Apache::lonhomework::history{"resource.$version.$dim.$instance.$id.comment"}).'</textarea>'.
1.18      albertel  720: 		    '</td>'.
                    721: 		    '<td>'.
1.20      albertel  722: 		    '<nobr><label><input type="radio" name="HWVAL_'.$link.'" value="ungraded" '.($status eq 'ungraded' || !$status ? 'checked="checked"':'').'/>Ungraded</label></nobr><br />'.
                    723: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="pass" '.($status eq 'pass' ? 'checked="checked"':'').' />Pass</label><br />'.
                    724: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="fail" '.($status eq 'fail' ? 'checked="checked"':'').' />Fail</label><br />'.
                    725: 		    '<label><input type="radio" name="HWVAL_'.$link.'" value="review" '.($status eq 'review' ? 'checked="checked"':'').' />Review</label><br />'.
1.18      albertel  726: 		    '</td>'.
                    727: 		    '<td>'.
                    728: 		    '<a href="#'.$last_link.'">Prev</a><br />'.
1.20      albertel  729: 		    '<a href="#next_'.$link.'">Next</a><br /><br /><br />'.
                    730: 		    '<input type="submit" name="next" value="'.
                    731: 		    &mt('Done').'" /> '.
1.18      albertel  732: 		    '</td></tr>';
1.22      albertel  733: 		$result.='<tr><td colspan="4">';
                    734: 		my (undef,undef,$udom,$uname) = &Apache::lonxml::whichuser();
                    735: 		my $file_url = '/uploaded/'.$udom.'/'.$uname.'/portfolio';
1.23      albertel  736: 		foreach my $partial_file (split(',',$Apache::lonhomework::history{"resource.$version.bridgetask.portfiles"})) {
1.22      albertel  737: 		    my $file=$file_url.$partial_file;
                    738: 		    &Apache::lonnet::allowuploaded('/adm/bridgetask',$file);
                    739: 		    $result.='<a href="'.$file.'" target="lonGRDs"><img src="'.
                    740: 			&Apache::loncommon::icon($file).'" border=0"> '.$file.
                    741: 			'</a>';
                    742: 		}
                    743: 		$result.='</td></tr>';
1.18      albertel  744: 		$last_link=$link;
                    745: 	    }
1.22      albertel  746: 	} elsif ($target eq 'grade' && $env{'form.webgrade'}) {
1.19      albertel  747: 	    my $optional_passed=0;
1.20      albertel  748: 	    my $mandatory_failed=0;
                    749: 	    my $ungraded=0;
                    750: 	    my $review=0;
1.19      albertel  751: 	    foreach my $id (@{$dimension{$instance.'.criterias'}}) {
1.25      albertel  752: 		my $status=$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.status"}=$env{'form.HWVAL_criteria_'.$instance.'_'.$id};
                    753: 		$Apache::lonhomework::results{"resource.$version.$dim.$instance.$id.comment"}=$env{'form.HWVAL_comment_criteria_'.$instance.'_'.$id};
1.20      albertel  754: 		my $mandatory=($dimension{$instance.'.criteria.'.$id.'.mandatory'} ne 'N');
                    755: 		if ($status eq 'pass') {
                    756: 		    if (!$mandatory) { $optional_passed++; }
                    757: 		} elsif ($status eq 'fail') {
                    758: 		    if ($mandatory) { $mandatory_failed++; }
1.21      albertel  759: 		} elsif ($status eq 'review') {
                    760: 		    $review++;
1.20      albertel  761: 		} elsif ($status eq 'ungraded') {
                    762: 		    $ungraded++;
1.21      albertel  763: 		} else {
1.22      albertel  764: 		    &Apache::lonxml::error("got weird status --$status--");
1.19      albertel  765: 		}
                    766: 	    }
1.20      albertel  767: 	    if ($optional_passed < $dimension{$instance.'.optionalrequired'}) {
                    768: 		$mandatory_failed++;
                    769: 	    }
1.21      albertel  770: 	    &Apache::lonxml::debug("all instance ".join(':',@{$dimension{$instance.'.criterias'}})." results -> m_f $mandatory_failed o_p $optional_passed u $ungraded r $review");
1.20      albertel  771: 	    if ($review) {
1.25      albertel  772: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel  773: 		    'review';
1.20      albertel  774: 	    } elsif ($ungraded) {
1.25      albertel  775: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel  776: 		    'ungraded';
1.20      albertel  777: 	    } elsif ($mandatory_failed) {
1.25      albertel  778: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel  779: 		    'fail';
1.20      albertel  780: 	    } else {
1.25      albertel  781: 		$Apache::lonhomework::results{"resource.$version.$dim.status"}=
1.22      albertel  782: 		    'pass';
1.20      albertel  783: 	    }
1.13      albertel  784: 	}
1.18      albertel  785: 	return $result;
1.1       albertel  786:     }
                    787: }
                    788: 
                    789: sub start_IntroParagraph {
                    790:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    791:     my $result;
1.13      albertel  792:     if ($target eq 'web' || $target eq 'webgrade') {
                    793: 	if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
1.1       albertel  794: 	    &Apache::lonxml::startredirection();
                    795: 	}
                    796:     }
                    797:     return $result;
                    798: }
                    799: 
                    800: sub end_IntroParagraph {
                    801:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    802:     my $result;
1.13      albertel  803:     if ($target eq 'web' || $target eq 'webgrade') {
                    804: 	if ($tagstack->[-2] eq 'Dimension' || $target eq 'webgrade') {
1.1       albertel  805: 	    $dimension{'intro'}=&Apache::lonxml::endredirection();
                    806: 	}
                    807:     }
                    808:     return $result;
                    809: }
                    810: 
                    811: sub start_Instance {
                    812:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.19      albertel  813:     my $id=&get_id($parstack,$safeeval);
                    814:     push(@{$dimension{'instances'}},$id);
                    815:     push(@Apache::bridgetask::instance,$id);
                    816:     push(@Apache::bridgetask::instancelist,$id);
1.20      albertel  817:     $dimension{$id.'.optionalrequired'}=
1.19      albertel  818: 	&Apache::lonxml::get_param('OptionalRequired',$parstack,$safeeval);
1.1       albertel  819:     return '';
                    820: }
                    821: 
                    822: sub end_Instance {
                    823:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
                    824:     return '';
                    825: }
                    826: 
                    827: sub start_InstanceText {
                    828:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.13      albertel  829:     if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel  830: 	&Apache::lonxml::startredirection();
                    831:     }
                    832:     return '';
                    833: }
                    834: 
                    835: sub end_InstanceText {
                    836:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9       albertel  837:     my $instance_id=$Apache::bridgetask::instance[-1];
1.13      albertel  838:     if ($target eq 'web' || $target eq 'webgrade') {
1.1       albertel  839: 	$dimension{$instance_id.'.text'}=&Apache::lonxml::endredirection();
                    840:     }
                    841:     return '';
                    842: }
                    843: 
                    844: sub start_Criteria {
                    845:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.21      albertel  846:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.1       albertel  847: 	&Apache::lonxml::startredirection();
                    848:     }
                    849:     return '';
                    850: }
                    851: 
                    852: sub end_Criteria {
                    853:     my ($target,$token,$tagstack,$parstack,$parser,$safeeval)=@_;
1.9       albertel  854:     my $instance_id=$Apache::bridgetask::instance[-1];
1.21      albertel  855:     if ($target eq 'web' || $target eq 'webgrade' || $target eq 'grade') {
1.1       albertel  856: 	my $criteria=&Apache::lonxml::endredirection();
1.19      albertel  857: 	my $id=&get_id($parstack,$safeeval);
1.1       albertel  858: 	$dimension{$instance_id.'.criteria.'.$id}=$criteria;
1.19      albertel  859: 	$dimension{$instance_id.'.criteria.'.$id.'.mandatory'}=
                    860: 	    &Apache::lonxml::get_param('Mandatory',$parstack,$safeeval);
1.1       albertel  861: 	push(@{$dimension{$instance_id.'.criterias'}},$id);
                    862:     }
                    863:     return '';
                    864: }
                    865: 
1.4       albertel  866: sub proctor_validation_screen {
                    867:     my ($slot) = @_;
                    868:     my (undef,undef,$domain,$user) = &Apache::lonxml::whichuser();
1.5       albertel  869:     my $url=&Apache::lonnet::studentphoto($domain,$user,'jpg');
1.11      albertel  870:     $user=$env{'form.proctorname'};
                    871:     if ($env{'form.proctordomain'}) { $domain=$env{'form.proctordomain'}; }
1.4       albertel  872:     my $msg;
1.11      albertel  873:     if ($env{'form.proctorpassword'}) {
1.4       albertel  874: 	$msg='<p><font color="red">'.&mt("Failed to authenticate the proctor.")
                    875: 	    .'</font></p>';
                    876:     }
                    877:     my $result= (<<ENDCHECKOUT);
                    878: <h2>Proctor Validation</h2>
                    879:     <p>Your room's proctor needs to validate your access to this resource.</p>
                    880:     $msg
1.11      albertel  881: <form name="checkout" method="POST" action="$env{'request.uri'}">
1.4       albertel  882: <input type="hidden" name="validate" value="yes" />
                    883: <input type="hidden" name="submitted" value="yes" />
                    884: <table>
                    885:   <tr><td>Proctor's Username:</td><td><input type="string" name="proctorname" value="$user" /></td></tr>
                    886:   <tr><td>Password:</td><td><input type="password" name="proctorpassword" value="" /></td></tr>
1.6       albertel  887:   <tr><td>Proctor's Domain:</td><td><input type="string" name="proctordomain" value="$domain" /></td></tr>
1.4       albertel  888: </table>
                    889: <input type="submit" name="checkoutbutton" value="Validate"  /><br />
                    890: Student who should be logged in is:<br />
1.5       albertel  891: <img src="$url" /><br />
1.4       albertel  892: </form>
                    893: ENDCHECKOUT
                    894:     return $result;
                    895: }
                    896: 
1.1       albertel  897: 1;
                    898: __END__

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