version 1.40, 2001/04/16 23:16:31
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version 1.274, 2007/09/10 13:31:39
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# The LearningOnline Network with CAPA |
# The LON-CAPA Homework handler |
# The LON-CAPA Homework handler |
# Guy Albertelli |
# |
# 11/30 Gerd Kortemeyer |
# $Id$ |
# 6/1 Gerd Kortemeyer |
# |
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# Copyright Michigan State University Board of Trustees |
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# |
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# This file is part of the LearningOnline Network with CAPA (LON-CAPA). |
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# |
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# LON-CAPA is free software; you can redistribute it and/or modify |
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# it under the terms of the GNU General Public License as published by |
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# the Free Software Foundation; either version 2 of the License, or |
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# (at your option) any later version. |
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# |
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# LON-CAPA is distributed in the hope that it will be useful, |
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# but WITHOUT ANY WARRANTY; without even the implied warranty of |
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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# GNU General Public License for more details. |
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# |
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# You should have received a copy of the GNU General Public License |
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# along with LON-CAPA; if not, write to the Free Software |
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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# |
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# /home/httpd/html/adm/gpl.txt |
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# |
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# http://www.lon-capa.org/ |
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package Apache::lonhomework; |
package Apache::lonhomework; |
use strict; |
use strict; |
use Apache::style; |
use Apache::style(); |
use Apache::lonxml; |
use Apache::lonxml(); |
use Apache::lonnet; |
use Apache::lonnet; |
use Apache::inputtags; |
use Apache::lonplot(); |
use Apache::structuretags; |
use Apache::inputtags(); |
use Apache::response; |
use Apache::structuretags(); |
use Apache::hint; |
use Apache::randomlabel(); |
use Apache::outputtags; |
use Apache::response(); |
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use Apache::hint(); |
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use Apache::outputtags(); |
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use Apache::caparesponse(); |
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use Apache::radiobuttonresponse(); |
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use Apache::optionresponse(); |
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use Apache::imageresponse(); |
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use Apache::essayresponse(); |
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use Apache::externalresponse(); |
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use Apache::rankresponse(); |
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use Apache::matchresponse(); |
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use Apache::chemresponse(); |
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use Apache::drawimage(); |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
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use HTML::Entities(); |
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use Apache::loncommon(); |
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use Apache::lonlocal; |
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use Time::HiRes qw( gettimeofday tv_interval ); |
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use Apache::lonnet(); |
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# FIXME - improve commenting |
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BEGIN { |
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&Apache::lonxml::register_insert(); |
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} |
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# |
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# Decides what targets to render for. |
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# Implicit inputs: |
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# Various session environment variables: |
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# request.state - published - is a /res/ resource |
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# uploaded - is a /uploaded/ resource |
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# contruct - is a /priv/ resource |
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# form.grade_target - a form parameter requesting a specific target |
sub get_target { |
sub get_target { |
if ( $ENV{'request.state'} eq "published") { |
&Apache::lonxml::debug("request.state = $env{'request.state'}"); |
if ( defined $ENV{'form.submitted'}) { |
if( defined($env{'form.grade_target'})) { |
return ('grade', 'web'); |
&Apache::lonxml::debug("form.grade_target= $env{'form.grade_target'}"); |
} else { |
} else { |
return ('web'); |
&Apache::lonxml::debug("form.grade_target <undefined>"); |
} |
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} elsif ($ENV{'request.state'} eq "construct") { |
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if ( defined $ENV{'form.preview'}) { |
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if ( defined $ENV{'form.submitted'}) { |
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return ('grade', 'web'); |
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} else { |
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return ('web'); |
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} |
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} else { |
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return ('grade','web'); |
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if ( $ENV{'form.submitted'} eq 'edit' ) { |
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return ('modified','edit'); |
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} else { |
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return ('edit'); |
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} |
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} |
} |
} |
if (($env{'request.state'} eq "published") || |
return (); |
($env{'request.state'} eq "uploaded")) { |
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if ( defined($env{'form.grade_target'} ) |
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&& ($env{'form.grade_target'} eq 'tex')) { |
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return ($env{'form.grade_target'}); |
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} elsif ( defined($env{'form.grade_target'} ) |
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&& ($Apache::lonhomework::viewgrades eq 'F' )) { |
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return ($env{'form.grade_target'}); |
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} elsif ( $env{'form.grade_target'} eq 'webgrade' |
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&& ($Apache::lonhomework::queuegrade eq 'F' )) { |
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return ($env{'form.grade_target'}); |
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} |
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if ($env{'form.webgrade'} && |
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($Apache::lonhomework::modifygrades eq 'F' |
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|| $Apache::lonhomework::queuegrade eq 'F' )) { |
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return ('grade','webgrade'); |
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} |
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if ( defined($env{'form.submitted'}) && |
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( !defined($env{'form.newrandomization'}))) { |
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return ('grade', 'web'); |
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} else { |
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return ('web'); |
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} |
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} elsif ($env{'request.state'} eq "construct") { |
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if ( defined($env{'form.grade_target'}) ) { |
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return ($env{'form.grade_target'}); |
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} |
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if ( defined($env{'form.preview'})) { |
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if ( defined($env{'form.submitted'})) { |
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return ('grade', 'web'); |
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} else { |
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return ('web'); |
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} |
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} else { |
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if ($env{'form.problemstate'} eq 'WEB_GRADE') { |
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#$env{'form.webgrade'} = 'yes'; |
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return ('grade','webgrade','answer'); |
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} elsif ( $env{'form.problemmode'} eq &mt('View') || |
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$env{'form.problemmode'} eq &mt('Discard Edits and View')) { |
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if ( defined($env{'form.submitted'}) && |
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(!defined($env{'form.resetdata'})) && |
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(!defined($env{'form.newrandomization'}))) { |
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return ('grade', 'web','answer'); |
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} else { |
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return ('web','answer'); |
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} |
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} elsif ( $env{'form.problemmode'} eq &mt('Edit') || |
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$env{'form.problemmode'} eq 'Edit') { |
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if ( $env{'form.submitted'} eq 'edit' ) { |
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if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) { |
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return ('modified','web','answer'); |
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} else { |
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return ('modified','no_output_web','edit'); |
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} |
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} else { |
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return ('no_output_web','edit'); |
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} |
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} else { |
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return ('web'); |
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} |
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} |
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} |
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return (); |
} |
} |
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sub setup_vars { |
sub setup_vars { |
my ($target) = @_; |
my ($target) = @_; |
return ';' |
return ';' |
# return ';$external::target='.$target.';'; |
# return ';$external::target='.$target.';'; |
} |
} |
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sub send_header { |
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my ($request)= @_; |
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$request->print(&Apache::lontexconvert::header()); |
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$ENV{'request.uri'}=$request->uri; |
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# $request->print('<form name='.$ENV{'form.request.prefix'}.'lonhomework method="POST" action="'.$request->uri.'">'); |
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} |
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sub createmenu { |
sub createmenu { |
my ($which,$request)=@_; |
my ($which,$request)=@_; |
if ($which eq 'grade') { |
if ($which eq 'grade') { |
$request->print('<script language="JavaScript"> |
$request->print('<script language="JavaScript"> |
hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote", |
hwkmenu=window.open("/res/adm/pages/homeworkmenu.html","homeworkremote", |
"height=350,width=150,menubar=no"); |
"height=350,width=150,menubar=no"); |
</script>'); |
</script>'); |
} |
} |
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} |
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sub proctor_checked_in { |
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my ($slot_name,$slot,$type)=@_; |
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my @possible_proctors=split(",",$slot->{'proctor'}); |
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return 1 if (!@possible_proctors); |
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my $key; |
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if ($type eq 'Task') { |
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my $version=$Apache::lonhomework::history{'resource.0.version'}; |
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$key ="resource.$version.0.checkedin"; |
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} elsif ($type eq 'problem') { |
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$key ='resource.0.checkedin'; |
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} |
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# backward compatability, used to be username@domain, |
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# now is username:domain |
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my $who = $Apache::lonhomework::history{$key}; |
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if ($who !~ /:/) { |
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$who =~ tr/@/:/; |
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} |
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foreach my $possible (@possible_proctors) { |
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if ($who eq $possible |
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&& $Apache::lonhomework::history{$key.'.slot'} eq $slot_name) { |
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return 1; |
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} |
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} |
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return 0; |
} |
} |
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sub send_footer { |
sub check_ip_acc { |
my ($request)= @_; |
my ($acc)=@_; |
# $request->print('</form>'); |
&Apache::lonxml::debug("acc is $acc"); |
$request->print(&Apache::lontexconvert::footer()); |
if (!defined($acc) || $acc =~ /^\s*$/ || $acc =~/^\s*no\s*$/i) { |
} |
return 1; |
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} |
$Apache::lonxml::browse=''; |
my $allowed=0; |
sub check_date { |
my $ip=$env{'request.host'} || $ENV{'REMOTE_ADDR'}; |
my ($id) = @_; |
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my $date =''; |
my $name; |
my $status = ''; |
foreach my $pattern (split(',',$acc)) { |
my $datemsg = ''; |
$pattern =~ s/^\s*//; |
my $lastdate = ''; |
$pattern =~ s/\s*$//; |
my $temp; |
if ($pattern =~ /\*$/) { |
my $type; |
#35.8.* |
my $passed; |
$pattern=~s/\*//; |
&Apache::lonxml::debug("checking for part :$id:"); |
if ($ip =~ /^\Q$pattern\E/) { $allowed=1; } |
foreach $temp ("opendate","duedate","answerdate") { |
} elsif ($pattern =~ /(\d+\.\d+\.\d+)\.\[(\d+)-(\d+)\]$/) { |
$lastdate = $date; |
#35.8.3.[34-56] |
$date = &Apache::lonnet::EXT("resource.$id.$temp"); |
my $low=$2; |
&Apache::lonxml::debug("found :$date: for :$temp:"); |
my $high=$3; |
if ($date eq '') { |
$pattern=$1; |
$date = "an unknown date"; $passed = 0; |
if ($ip =~ /^\Q$pattern\E/) { |
} elsif ($date eq 'con_lost') { |
my $last=(split(/\./,$ip))[3]; |
$date = "an indeterminate date"; $passed = 0; |
if ($last <=$high && $last >=$low) { $allowed=1; } |
} else { |
} |
if (time < $date) { $passed = 0; } else { $passed = 1; } |
} elsif ($pattern =~ /^\*/) { |
$date = localtime $date; |
#*.msu.edu |
} |
$pattern=~s/\*//; |
if (!$passed) { $type=$temp; last; } |
if (!defined($name)) { |
} |
use Socket; |
&Apache::lonxml::debug("have :$type:$passed:"); |
my $netaddr=inet_aton($ip); |
if ($passed) { |
($name)=gethostbyaddr($netaddr,AF_INET); |
$status='SHOW_ANSWER'; |
} |
$datemsg=$date; |
if ($name =~ /\Q$pattern\E$/i) { $allowed=1; } |
} elsif ($type eq 'opendate') { |
} elsif ($pattern =~ /\d+\.\d+\.\d+\.\d+/) { |
$status='CLOSED'; |
#127.0.0.1 |
$datemsg = "will open on $date"; |
if ($ip =~ /^\Q$pattern\E/) { $allowed=1; } |
} elsif ($type eq 'duedate') { |
} else { |
$status='CAN_ANSWER'; |
#some.name.com |
$datemsg = "is due at $date"; |
if (!defined($name)) { |
} elsif ($type eq 'answerdate') { |
use Socket; |
$status='CLOSED'; |
my $netaddr=inet_aton($ip); |
$datemsg = "was due on $lastdate, and answers will be available on $date"; |
($name)=gethostbyaddr($netaddr,AF_INET); |
} |
} |
if ($status eq 'CAN_ANSWER') { |
if ($name =~ /\Q$pattern\E$/i) { $allowed=1; } |
#check #tries |
} |
my $tries = $Apache::lonhomework::history{"resource.$id.tries"}; |
if ($allowed) { last; } |
my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries"); |
} |
if ( $tries eq '' ) { $tries = '0'; } |
return $allowed; |
if ( $maxtries eq '' ) { $maxtries = '2'; } |
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if ($tries >= $maxtries) { $status = 'CANNOT_ANSWER'; } |
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} |
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&Apache::lonxml::debug("sending back :$status:$datemsg:"); |
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if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) { |
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&Apache::lonxml::debug("should be allowed to browse a resource when closed"); |
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$status='CAN_ANSWER'; |
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$datemsg='is closed but you are allowed to view it'; |
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} |
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if ($ENV{'request.state'} eq "construct") { |
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&Apache::lonxml::debug("in construction ignoring dates"); |
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$status='CAN_ANSWER'; |
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$datemsg='is in under construction'; |
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} |
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return ($status,$datemsg); |
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} |
} |
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sub check_slot_access { |
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my ($id,$type)=@_; |
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# does it pass normal muster |
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my ($status,$datemsg)=&check_access($id); |
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my $useslots = &Apache::lonnet::EXT("resource.0.useslots"); |
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if ($useslots ne 'resource' && $useslots ne 'map' |
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&& $useslots ne 'map_map') { |
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return ($status,$datemsg); |
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} |
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if ($status eq 'SHOW_ANSWER' || |
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$status eq 'CLOSED' || |
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$status eq 'INVALID_ACCESS' || |
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$status eq 'UNAVAILABLE') { |
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return ($status,$datemsg); |
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} |
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if ($env{'request.state'} eq "construct") { |
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return ($status,$datemsg); |
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} |
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if ($type eq 'Task') { |
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my $version=$Apache::lonhomework::history{'resource.version'}; |
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if ($Apache::lonhomework::history{"resource.$version.0.checkedin"} && |
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$Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass') { |
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return ('SHOW_ANSWER'); |
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} |
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} |
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my @slots= |
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(split(':',&Apache::lonnet::EXT("resource.0.availablestudent")), |
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split(':',&Apache::lonnet::EXT("resource.0.available"))); |
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# if (!@slots) { |
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# return ($status,$datemsg); |
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# } |
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my $slotstatus='NOT_IN_A_SLOT'; |
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my ($returned_slot,$slot_name); |
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foreach my $slot (@slots) { |
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$slot =~ s/(^\s*|\s*$)//g; |
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&Apache::lonxml::debug("getting $slot"); |
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my %slot=&Apache::lonnet::get_slot($slot); |
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&Apache::lonhomework::showhash(%slot); |
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if ($slot{'starttime'} < time && |
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$slot{'endtime'} > time && |
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&check_ip_acc($slot{'ip'})) { |
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&Apache::lonxml::debug("$slot is good"); |
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$slotstatus='NEEDS_CHECKIN'; |
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$returned_slot=\%slot; |
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$slot_name=$slot; |
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last; |
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} |
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} |
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if ($slotstatus eq 'NEEDS_CHECKIN' && |
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&proctor_checked_in($slot_name,$returned_slot,$type)) { |
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&Apache::lonxml::debug("protoctor checked in"); |
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$slotstatus='CAN_ANSWER'; |
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} |
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my ($is_correct,$got_grade,$checkedin); |
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if ($type eq 'Task') { |
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my $version=$Apache::lonhomework::history{'resource.0.version'}; |
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$got_grade = |
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($Apache::lonhomework::history{"resource.$version.0.status"} |
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=~ /^(?:pass|fail)$/); |
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$is_correct = |
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($Apache::lonhomework::history{"resource.$version.0.status"} eq 'pass' |
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|| $Apache::lonhomework::history{"resource.0.solved"} =~ /^correct_/ ); |
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$checkedin = |
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$Apache::lonhomework::history{"resource.$version.0.checkedin"}; |
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} elsif ($type eq 'problem') { |
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$got_grade = 1; |
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$checkedin = $Apache::lonhomework::history{"resource.0.checkedin"}; |
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$is_correct = |
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($Apache::lonhomework::history{"resource.0.solved"} =~/^correct_/); |
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} |
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&Apache::lonxml::debug(" slot is $slotstatus checkedin ($checkedin) got_grade ($got_grade) is_correct ($is_correct)"); |
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# no slot is currently open, and has been checked in for this version |
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# but hasn't got a grade, therefore must be awaiting a grade |
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if (!defined($slot_name) |
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&& $checkedin |
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&& !$got_grade) { |
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return ('WAITING_FOR_GRADE'); |
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} |
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# no slot is currently open, and has been checked in for this version |
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# previous slot is therefore CLOSED, so therefore the problem is |
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if (!defined($slot_name) |
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&& $checkedin |
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&& $type eq 'problem') { |
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return ('CLOSED',$datemsg); |
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} |
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if ($slotstatus eq 'NOT_IN_A_SLOT' |
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&& $checkedin ) { |
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if ($got_grade) { |
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return ('SHOW_ANSWER'); |
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} else { |
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return ('WAITING_FOR_GRADE'); |
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} |
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} |
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if ( $is_correct) { |
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if ($type eq 'problem') { |
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return ($status); |
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} |
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return ('SHOW_ANSWER'); |
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} |
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if ( $status eq 'CANNOT_ANSWER' && |
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($slotstatus ne 'NEEDS_CHECKIN' && $slotstatus ne 'NOT_IN_A_SLOT')) { |
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return ($status,$datemsg); |
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} |
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return ($slotstatus,$datemsg,$slot_name,$returned_slot); |
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} |
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# JB, 9/24/2002: Any changes in this function may require a change |
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# in lonnavmaps::resource::getDateStatus. |
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sub check_access { |
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my ($id) = @_; |
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my $date =''; |
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my $status; |
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my $datemsg = ''; |
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my $lastdate = ''; |
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my $type; |
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my $passed; |
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if ($env{'request.state'} eq "construct") { |
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if ($env{'form.problemstate'}) { |
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if ($env{'form.problemstate'} =~ /^CANNOT_ANSWER/) { |
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if ( ! ($env{'form.problemstate'} eq 'CANNOT_ANSWER_correct' && |
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lc($Apache::lonhomework::problemstatus) eq 'no')) { |
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return ('CANNOT_ANSWER', |
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&mt('is in this state due to author settings.')); |
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} |
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} else { |
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return ($env{'form.problemstate'}, |
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&mt('is in this state due to author settings.')); |
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} |
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} |
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&Apache::lonxml::debug("in construction ignoring dates"); |
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$status='CAN_ANSWER'; |
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$datemsg=&mt('is in under construction'); |
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# return ($status,$datemsg); |
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} |
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&Apache::lonxml::debug("checking for part :$id:"); |
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&Apache::lonxml::debug("time:".time); |
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my ($symb)=&Apache::lonnet::whichuser(); |
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&Apache::lonxml::debug("symb:".$symb); |
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#if ($env{'request.state'} ne "construct" && $symb ne '') { |
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if ($env{'request.state'} ne "construct") { |
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my $allowed=&check_ip_acc(&Apache::lonnet::EXT("resource.$id.acc")); |
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if (!$allowed && ($Apache::lonhomework::browse ne 'F')) { |
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$status='INVALID_ACCESS'; |
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$date=&mt("can not be accessed from your location."); |
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return($status,$date); |
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} |
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foreach my $temp ("opendate","duedate","answerdate") { |
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$lastdate = $date; |
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if ($temp eq 'duedate') { |
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$date = &due_date($id); |
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} else { |
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$date = &Apache::lonnet::EXT("resource.$id.$temp"); |
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} |
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my $thistype = &Apache::lonnet::EXT("resource.$id.$temp.type"); |
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if ($thistype =~ /^(con_lost|no_such_host)/ || |
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$date =~ /^(con_lost|no_such_host)/) { |
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$status='UNAVAILABLE'; |
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$date=&mt("may open later."); |
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return($status,$date); |
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} |
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if ($thistype eq 'date_interval') { |
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if ($temp eq 'opendate') { |
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$date=&Apache::lonnet::EXT("resource.$id.duedate")-$date; |
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} |
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if ($temp eq 'answerdate') { |
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$date=&Apache::lonnet::EXT("resource.$id.duedate")+$date; |
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} |
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} |
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&Apache::lonxml::debug("found :$date: for :$temp:"); |
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if ($date eq '') { |
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$date = &mt("an unknown date"); $passed = 0; |
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} elsif ($date eq 'con_lost') { |
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$date = &mt("an indeterminate date"); $passed = 0; |
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} else { |
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if (time < $date) { $passed = 0; } else { $passed = 1; } |
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$date = &Apache::lonlocal::locallocaltime($date); |
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} |
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if (!$passed) { $type=$temp; last; } |
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} |
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&Apache::lonxml::debug("have :$type:$passed:"); |
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if ($passed) { |
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$status='SHOW_ANSWER'; |
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$datemsg=$date; |
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} elsif ($type eq 'opendate') { |
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$status='CLOSED'; |
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$datemsg = &mt("will open on")." $date"; |
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} elsif ($type eq 'duedate') { |
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$status='CAN_ANSWER'; |
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$datemsg = &mt("is due at")." $date"; |
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} elsif ($type eq 'answerdate') { |
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$status='CLOSED'; |
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$datemsg = &mt("was due on")." $lastdate".&mt(", and answers will be available on")." $date"; |
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} |
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} |
|
if ($status eq 'CAN_ANSWER' || |
|
(($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED'))) { |
|
#check #tries, and if correct. |
|
my $tries = $Apache::lonhomework::history{"resource.$id.tries"}; |
|
my $maxtries = &Apache::lonnet::EXT("resource.$id.maxtries"); |
|
if ( $tries eq '' ) { $tries = '0'; } |
|
if ( $maxtries eq '' && |
|
$env{'request.state'} ne 'construct') { $maxtries = '2'; } |
|
if ($maxtries && $tries >= $maxtries) { $status = 'CANNOT_ANSWER'; } |
|
# if (correct and show prob status) or excused then CANNOT_ANSWER |
|
if(($Apache::lonhomework::history{"resource.$id.solved"}=~/^correct/ |
|
&& |
|
lc($Apache::lonhomework::problemstatus) ne 'no') |
|
|| |
|
$Apache::lonhomework::history{"resource.$id.solved"}=~/^excused/) { |
|
$status = 'CANNOT_ANSWER'; |
|
} |
|
} |
|
if ($status eq 'CAN_ANSWER' || $status eq 'CANNOT_ANSWER') { |
|
my $interval=&Apache::lonnet::EXT("resource.$id.interval"); |
|
&Apache::lonxml::debug("looking for interval $interval"); |
|
if ($interval) { |
|
my $first_access=&Apache::lonnet::get_first_access('map'); |
|
&Apache::lonxml::debug("looking for accesstime $first_access"); |
|
if (!$first_access) { |
|
$status='NOT_YET_VIEWED'; |
|
my $due_date = &due_date($id); |
|
my $seconds_left = $due_date - time; |
|
if ($seconds_left > $interval || $due_date eq '') { |
|
$seconds_left = $interval; |
|
} |
|
$datemsg=&seconds_to_human_length($seconds_left); |
|
} |
|
} |
|
} |
|
|
|
#if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') && |
|
# (!$Apache::lonhomework::history{"resource.0.outtoken"})) { |
|
# return ('UNCHECKEDOUT','needs to be checked out'); |
|
#} |
|
|
|
|
|
&Apache::lonxml::debug("sending back :$status:$datemsg:"); |
|
if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) { |
|
&Apache::lonxml::debug("should be allowed to browse a resource when closed"); |
|
$status='CAN_ANSWER'; |
|
$datemsg=&mt('is closed but you are allowed to view it'); |
|
} |
|
|
|
return ($status,$datemsg); |
|
} |
|
# this should work exactly like the copy in lonnavmaps.pm |
|
sub due_date { |
|
my ($part_id,$symb,$udom,$uname)=@_; |
|
my $date; |
|
my $interval= &Apache::lonnet::EXT("resource.$part_id.interval",$symb, |
|
$udom,$uname); |
|
&Apache::lonxml::debug("looking for interval $part_id $symb $interval"); |
|
my $due_date= &Apache::lonnet::EXT("resource.$part_id.duedate",$symb, |
|
$udom,$uname); |
|
&Apache::lonxml::debug("looking for due_date $part_id $symb $due_date"); |
|
if ($interval =~ /\d+/) { |
|
my $first_access=&Apache::lonnet::get_first_access('map',$symb); |
|
&Apache::lonxml::debug("looking for first_access $first_access"); |
|
if (defined($first_access)) { |
|
$interval = $first_access+$interval; |
|
$date = ($interval < $due_date)? $interval : $due_date; |
|
} else { |
|
$date = $due_date; |
|
} |
|
} else { |
|
$date = $due_date; |
|
} |
|
return $date |
|
} |
|
|
|
sub seconds_to_human_length { |
|
my ($length)=@_; |
|
|
|
my $seconds=$length%60; $length=int($length/60); |
|
my $minutes=$length%60; $length=int($length/60); |
|
my $hours=$length%24; $length=int($length/24); |
|
my $days=$length; |
|
|
|
my $timestr; |
|
if ($days > 0) { $timestr.=&mt('[quant,_1,day]',$days); } |
|
if ($hours > 0) { $timestr.=($timestr?", ":""). |
|
&mt('[quant,_1,hour]',$hours); } |
|
if ($minutes > 0) { $timestr.=($timestr?", ":""). |
|
&mt('[quant,_1,minute]',$minutes); } |
|
if ($seconds > 0) { $timestr.=($timestr?", ":""). |
|
&mt('[quant,_1,second]',$seconds); } |
|
return $timestr; |
|
} |
|
|
|
sub showhash { |
|
my (%hash) = @_; |
|
&showhashsubset(\%hash,'.'); |
|
return ''; |
|
} |
|
|
|
sub showarray { |
|
my ($array)=@_; |
|
my $string="("; |
|
foreach my $elm (@{ $array }) { |
|
if (ref($elm) eq 'ARRAY') { |
|
$string.=&showarray($elm); |
|
} elsif (ref($elm) eq 'HASH') { |
|
$string.= "HASH --- \n<br />"; |
|
$string.= &showhashsubset($elm,'.'); |
|
} else { |
|
$string.="$elm," |
|
} |
|
} |
|
chop($string); |
|
$string.=")"; |
|
return $string; |
|
} |
|
|
|
sub showhashsubset { |
|
my ($hash,$keyre) = @_; |
|
my $resultkey; |
|
foreach $resultkey (sort keys %$hash) { |
|
if ($resultkey !~ /$keyre/) { next; } |
|
if (ref($$hash{$resultkey}) eq 'ARRAY' ) { |
|
&Apache::lonxml::debug("$resultkey ---- ". |
|
&showarray($$hash{$resultkey})); |
|
} elsif (ref($$hash{$resultkey}) eq 'HASH' ) { |
|
&Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}"); |
|
&showhashsubset($$hash{$resultkey},'.'); |
|
} else { |
|
&Apache::lonxml::debug("$resultkey ---- $$hash{$resultkey}"); |
|
} |
|
} |
|
&Apache::lonxml::debug("\n<br />restored values^</br>\n"); |
|
return ''; |
|
} |
|
|
|
sub setuppermissions { |
|
$Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$env{'request.filename'}); |
|
my $viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}); |
|
if (! $viewgrades && |
|
exists($env{'request.course.sec'}) && |
|
$env{'request.course.sec'} !~ /^\s*$/) { |
|
$viewgrades = &Apache::lonnet::allowed('vgr',$env{'request.course.id'}. |
|
'/'.$env{'request.course.sec'}); |
|
} |
|
$Apache::lonhomework::viewgrades = $viewgrades; |
|
|
|
if ($Apache::lonhomework::browse eq 'F' && |
|
$env{'form.devalidatecourseresdata'} eq 'on') { |
|
my (undef,$courseid) = &Apache::lonnet::whichuser(); |
|
&Apache::lonnet::devalidatecourseresdata($env{"course.$courseid.num"}, |
|
$env{"course.$courseid.domain"}); |
|
} |
|
|
|
my $modifygrades = &Apache::lonnet::allowed('mgr',$env{'request.course.id'}); |
|
if (! $modifygrades && |
|
exists($env{'request.course.sec'}) && |
|
$env{'request.course.sec'} !~ /^\s*$/) { |
|
$modifygrades = |
|
&Apache::lonnet::allowed('mgr',$env{'request.course.id'}. |
|
'/'.$env{'request.course.sec'}); |
|
} |
|
$Apache::lonhomework::modifygrades = $modifygrades; |
|
|
|
my $queuegrade = &Apache::lonnet::allowed('mqg',$env{'request.course.id'}); |
|
if (! $queuegrade && |
|
exists($env{'request.course.sec'}) && |
|
$env{'request.course.sec'} !~ /^\s*$/) { |
|
$queuegrade = |
|
&Apache::lonnet::allowed('qgr',$env{'request.course.id'}. |
|
'/'.$env{'request.course.sec'}); |
|
} |
|
$Apache::lonhomework::queuegrade = $queuegrade; |
|
return ''; |
|
} |
|
|
|
sub unset_permissions { |
|
undef($Apache::lonhomework::queuegrade); |
|
undef($Apache::lonhomework::modifygrades); |
|
undef($Apache::lonhomework::viewgrades); |
|
undef($Apache::lonhomework::browse); |
|
} |
|
|
|
sub setupheader { |
|
my $request=$_[0]; |
|
&Apache::loncommon::content_type($request,'text/html'); |
|
if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) { |
|
&Apache::loncommon::no_cache($request); |
|
} |
|
# $request->set_last_modified(&Apache::lonnet::metadata($request->uri, |
|
# 'lastrevisiondate')); |
|
$request->send_http_header; |
|
return OK if $request->header_only; |
|
return '' |
|
} |
|
|
|
sub handle_save_or_undo { |
|
my ($request,$problem,$result) = @_; |
|
my $file = &Apache::lonnet::filelocation("",$request->uri); |
|
my $filebak =$file.".bak"; |
|
my $filetmp =$file.".tmp"; |
|
my $error=0; |
|
if ($env{'form.Undo'} eq &mt('undo')) { |
|
my $error=0; |
|
if (!copy($file,$filetmp)) { $error=1; } |
|
if ((!$error) && (!copy($filebak,$file))) { $error=1; } |
|
if ((!$error) && (!move($filetmp,$filebak))) { $error=1; } |
|
if (!$error) { |
|
&Apache::lonxml::info("<p><b>". |
|
&mt("Undid changes, Switched [_1] and [_2]", |
|
'<span class="LC_filename">'.$filebak. |
|
'</span>', |
|
'<span class="LC_filename">'.$file. |
|
'</span>')."</b></p>"); |
|
} else { |
|
&Apache::lonxml::info("<p><span class=\"LC_error\">". |
|
&mt("Unable to undo, unable to switch [_1] and [_2]", |
|
'<span class="LC_filename">'. |
|
$filebak.'</span>', |
|
'<span class="LC_filename">'. |
|
$file.'</span>')."</span></p>"); |
|
$error=1; |
|
} |
|
} else { |
|
&Apache::lonnet::correct_line_ends($result); |
|
my $fs=Apache::File->new(">$filebak"); |
|
if (defined($fs)) { |
|
print $fs $$problem; |
|
&Apache::lonxml::info("<b>".&mt("Making Backup to [_1]", |
|
'<span class="LC_filename">'. |
|
$filebak.'</span>'). |
|
"</b>"); |
|
} else { |
|
&Apache::lonxml::info("<span class=\"LC_error\">". |
|
&mt("Unable to make backup [_1]", |
|
'<span class="LC_filename">'. |
|
$filebak.'</span>')."</span>"); |
|
$error=2; |
|
} |
|
my $fh=Apache::File->new(">$file"); |
|
if (defined($fh)) { |
|
print $fh $$result; |
|
&Apache::lonxml::info("<b>".&mt("Saving Modifications to [_1]", |
|
'<span class="LC_filename">'. |
|
$file.'</span>' )."</b>"); |
|
} else { |
|
&Apache::lonxml::info('<span class="LC_error">'. |
|
&mt("Unable to write to [_1]", |
|
'<span class="LC_filename">'. |
|
$file.'</span>'). |
|
'</span>'); |
|
$error|=4; |
|
} |
|
} |
|
return $error; |
|
} |
|
|
|
sub analyze_header { |
|
my ($request) = @_; |
|
my $result = |
|
&Apache::loncommon::start_page('Analyzing a problem',undef); |
|
|
|
$result .= |
|
&Apache::lonxml::message_location().' |
|
<form name="lonhomework" method="POST" action="'. |
|
&HTML::Entities::encode($env{'request.uri'},'<>&"').'">'. |
|
&Apache::structuretags::remember_problem_state().' |
|
<input type="submit" name="problemmode" value="'.&mt("EditXML").'" /> |
|
<input type="submit" name="problemmode" value="'.&mt('Edit').'" /> |
|
<hr /> |
|
<input type="submit" name="submit" value="'.&mt("View").'" /> |
|
<hr /> |
|
</form>'; |
|
&Apache::lonxml::add_messages(\$result); |
|
$request->print($result); |
|
$request->rflush(); |
|
} |
|
|
|
sub analyze_footer { |
|
my ($request) = @_; |
|
$request->print(&Apache::loncommon::end_page()); |
|
$request->rflush(); |
|
} |
|
|
|
sub analyze { |
|
my ($request,$file) = @_; |
|
&Apache::lonxml::debug("Analyze"); |
|
my $result; |
|
my %overall; |
|
my %seedexample; |
|
my %allparts; |
|
my $rndseed=$env{'form.rndseed'}; |
|
&analyze_header($request); |
|
my %prog_state= |
|
&Apache::lonhtmlcommon::Create_PrgWin($request,&mt('Analyze Progress'), |
|
&mt('Getting Problem Variants'), |
|
$env{'form.numtoanalyze'}, |
|
'inline',undef); |
|
for(my $i=1;$i<$env{'form.numtoanalyze'}+1;$i++) { |
|
&Apache::lonhtmlcommon::Increment_PrgWin($request,\%prog_state, |
|
&mt('last problem')); |
|
if (&Apache::loncommon::connection_aborted($request)) { return; } |
|
my $thisseed=$i+$rndseed; |
|
my $subresult=&Apache::lonnet::ssi($request->uri, |
|
('grade_target' => 'analyze'), |
|
('rndseed' => $thisseed)); |
|
(my $garbage,$subresult)=split(/_HASH_REF__/,$subresult,2); |
|
my %analyze=&Apache::lonnet::str2hash($subresult); |
|
my @parts; |
|
if (defined(@{ $analyze{'parts'} })) { |
|
@parts=@{ $analyze{'parts'} }; |
|
} |
|
foreach my $part (@parts) { |
|
if (!exists($allparts{$part})) {$allparts{$part}=1;}; |
|
if ($analyze{$part.'.type'} eq 'numericalresponse' || |
|
$analyze{$part.'.type'} eq 'stringresponse' || |
|
$analyze{$part.'.type'} eq 'formularesponse' ) { |
|
foreach my $name (keys(%{ $analyze{$part.'.answer'} })) { |
|
my $i=0; |
|
foreach my $answer_part (@{ $analyze{$part.'.answer'}{$name} }) { |
|
push( @{ $overall{$part.'.answer'}[$i] }, |
|
$answer_part); |
|
my $concatanswer= join("\0",@{ $answer_part }); |
|
if (($concatanswer eq '') || ($concatanswer=~/^\@/)) { |
|
$answer_part = ['<span class="LC_error">'.&mt('Error').'</span>']; |
|
} |
|
$seedexample{join("\0",$part,$i,@{$answer_part})}= |
|
$thisseed; |
|
$i++; |
|
} |
|
} |
|
} |
|
} |
|
} |
|
&Apache::lonhtmlcommon::Update_PrgWin($request,\%prog_state, |
|
&mt('Analyzing Results')); |
|
$request->print('<hr />'.&mt('List of possible answers').': '); |
|
foreach my $part (sort(keys(%allparts))) { |
|
if (defined(@{ $overall{$part.'.answer'} })) { |
|
for (my $i=0;$i<scalar(@{ $overall{$part.'.answer'} });$i++) { |
|
my $num_cols=scalar(@{ $overall{$part.'.answer'}[$i][0] }); |
|
$request->print('<table class="thinborder"><tr><th colspan="'.($num_cols+1).'">'.&mt('Part').' '.$part); |
|
if (scalar(@{ $overall{$part.'.answer'} }) > 1) { |
|
$request->print(&mt(' Answer [_1]',$i+1)); |
|
} |
|
$request->print('</th></tr>'); |
|
my %frequency; |
|
foreach my $answer (sort {$a->[0] <=> $b->[0]} (@{ $overall{$part.'.answer'}[$i] })) { |
|
$frequency{join("\0",@{ $answer })}++; |
|
} |
|
$request->print('<tr><th colspan="'.($num_cols).'">'.&mt('Answer').'</th><th>'.&mt('Frequency').'<br />(' |
|
.&mt('click for example').')</th></tr>'); |
|
foreach my $answer (sort {(split("\0",$a))[0] <=> (split("\0",$b))[0]} (keys(%frequency))) { |
|
$request->print('<tr><td class="center">'. |
|
join('</td><td class="center">',split("\0",$answer)). |
|
'</td><td class="center"><a href="'.$request->uri.'?rndseed='.$seedexample{join("\0",$part,$i,$answer)}.'">'.$frequency{$answer}. |
|
'</a></td></tr>'); |
|
} |
|
$request->print('</table>'); |
|
} |
|
} else { |
|
$request->print('<p>'.&mt('Response').' '.$part.' '. |
|
&mt('is not analyzable at this time').'</p>'); |
|
} |
|
} |
|
if (scalar(keys(%allparts)) == 0 ) { |
|
$request->print('<p>'.&mt('Found no analyzable responses in this problem, currently only Numerical, Formula and String response styles are supported.').'</p>'); |
|
} |
|
&Apache::lonhtmlcommon::Close_PrgWin($request,\%prog_state); |
|
&analyze_footer($request); |
|
&Apache::lonhomework::showhash(%overall); |
|
return $result; |
|
} |
|
|
|
sub editxmlmode { |
|
my ($request,$file) = @_; |
|
my $result; |
|
my $problem=&Apache::lonnet::getfile($file); |
|
if ($problem eq -1) { |
|
&Apache::lonxml::error("<b> ".&mt('Unable to find'). |
|
" <i>$file</i></b>"); |
|
$problem=''; |
|
} |
|
if (defined($env{'form.editxmltext'}) || defined($env{'form.Undo'})) { |
|
my $error=&handle_save_or_undo($request,\$problem, |
|
\$env{'form.editxmltext'}); |
|
if (!$error) { $problem=&Apache::lonnet::getfile($file); } |
|
} |
|
&Apache::lonhomework::showhashsubset(\%env,'^form'); |
|
if ( $env{'form.submit'} eq &mt('Submit Changes and View') ) { |
|
&Apache::lonhomework::showhashsubset(\%env,'^form'); |
|
$env{'form.problemmode'}='View'; |
|
&renderpage($request,$file); |
|
} else { |
|
my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem); |
|
my $xml_help = '<table><tr><td>'. |
|
&Apache::loncommon::helpLatexCheatsheet("Problem_Editor_XML_Index", |
|
"Problem Editing Help"). |
|
'</td><td>'. |
|
&Apache::loncommon::help_open_menu(undef,undef,5,'Authoring'). |
|
'</td></tr></table>'; |
|
if ($cols > 80) { $cols = 80; } |
|
if ($cols < 70) { $cols = 70; } |
|
if ($rows < 20) { $rows = 20; } |
|
my $js = |
|
&Apache::edit::js_change_detection(). |
|
&Apache::loncommon::resize_textarea_js(); |
|
my $only_body = ($env{'environment.remote'} eq 'off')? 0 : 1; |
|
my $start_page = |
|
&Apache::loncommon::start_page(&mt("EditXML [_1]",$file),$js, |
|
{'no_auto_mt_title' => 1, |
|
'only_body' => $only_body, |
|
'add_entries' => { |
|
'onresize' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')], |
|
'onload' => q[resize_textarea('LC_editxmltext','LC_aftertextarea')], |
|
}}); |
|
|
|
$result.=$start_page. |
|
&renderpage($request,$file,['no_output_web'],1). |
|
&Apache::lonxml::message_location().' |
|
<form '.&Apache::edit::form_change_detection().' name="lonhomework" method="POST" action="'. |
|
&HTML::Entities::encode($env{'request.uri'},'<>&"').'">'. |
|
&Apache::structuretags::remember_problem_state().' |
|
<input type="hidden" name="problemmode" value="'.&mt('EditXML').'" /> |
|
<input type="submit" name="problemmode" accesskey="d" value="'.&mt('Discard Edits and View').'" /> |
|
<input type="submit" '.&Apache::edit::submit_ask_anyway().'name="problemmode" accesskey="e" value="'.&mt('Edit').'" /> |
|
<input type="submit" name="Undo" accesskey="u" value="'.&mt('undo').'" /> |
|
<hr /> |
|
<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" /> |
|
<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /> |
|
<hr /> |
|
' . $xml_help . ' |
|
<textarea '.&Apache::edit::element_change_detection(). |
|
' rows="'.$rows.'" cols="'.$cols.'" style="width:100%" '. |
|
' name="editxmltext" id="LC_editxmltext">'. |
|
&HTML::Entities::encode($problem,'<>&"').'</textarea> |
|
<div id="LC_aftertextarea"> |
|
<input type="submit" name="submit" accesskey="s" value="'.&mt('Submit Changes').'" /> |
|
<input type="submit" name="submit" accesskey="v" value="'.&mt('Submit Changes and View').'" /> |
|
</div> |
|
</form>'.&Apache::loncommon::end_page(); |
|
&Apache::lonxml::add_messages(\$result); |
|
$request->print($result); |
|
} |
|
return ''; |
|
} |
|
|
|
# |
|
# Render the page in whatever target desired. |
|
# |
|
sub renderpage { |
|
my ($request,$file,$targets,$return_string) = @_; |
|
|
|
my @targets = @{$targets || [&get_target()]}; |
|
&Apache::lonhomework::showhashsubset(\%env,'form.'); |
|
&Apache::lonxml::debug("Running targets ".join(':',@targets)); |
|
|
|
my $overall_result; |
|
foreach my $target (@targets) { |
|
# FIXME need to do something intelligent when a problem goes |
|
# from viewable to not viewable due to map conditions |
|
#&setuppermissions(); |
|
#if ( $Apache::lonhomework::browse ne '2' |
|
# && $Apache::lonhomework::browse ne 'F' ) { |
|
# $request->print(" You most likely shouldn't see me."); |
|
#} |
|
#my $t0 = [&gettimeofday()]; |
|
my $output=1; |
|
if ($target eq 'no_output_web') { |
|
$target = 'web'; $output=0; |
|
} |
|
my $problem=&Apache::lonnet::getfile($file); |
|
my $result; |
|
if ($problem eq -1) { |
|
$problem=''; |
|
my $filename=(split('/',$file))[-1]; |
|
my $error = |
|
"<b> ".&mt('Unable to find [_1]', |
|
' <span class="LC_filename">'.$filename.'</span>') |
|
."</b>"; |
|
$result.= |
|
&Apache::loncommon::simple_error_page($request,'Not available', |
|
$error); |
|
return; |
|
} |
|
|
|
my %mystyle; |
|
if ($target eq 'analyze') { %Apache::lonhomework::analyze=(); } |
|
if ($target eq 'answer') { &showhash(%Apache::lonhomework::history); } |
|
if ($target eq 'web') {&Apache::lonhomework::showhashsubset(\%env,'^form');} |
|
|
|
&Apache::lonxml::debug("Should be parsing now"); |
|
$result .= &Apache::lonxml::xmlparse($request, $target, $problem, |
|
&setup_vars($target),%mystyle); |
|
&finished_parsing(); |
|
if (!$output) { $result = ''; } |
|
#$request->print("Result follows:"); |
|
if ($target eq 'modified') { |
|
&handle_save_or_undo($request,\$problem,\$result); |
|
} else { |
|
if ($target eq 'analyze') { |
|
$result=&Apache::lonnet::hashref2str(\%Apache::lonhomework::analyze); |
|
undef(%Apache::lonhomework::analyze); |
|
} |
|
#my $td=&tv_interval($t0); |
|
#if ( $Apache::lonxml::debug) { |
|
#$result =~ s:</body>::; |
|
#$result.="<br />Spent $td seconds processing target $target\n</body>"; |
|
#} |
|
# $request->print($result); |
|
$overall_result.=$result; |
|
# $request->rflush(); |
|
} |
|
#$request->print(":Result ends"); |
|
#my $td=&tv_interval($t0); |
|
} |
|
if (!$return_string) { |
|
&Apache::lonxml::add_messages(\$overall_result); |
|
$request->print($overall_result); |
|
$request->rflush(); |
|
} else { |
|
return $overall_result; |
|
} |
|
} |
|
|
|
sub finished_parsing { |
|
undef($Apache::lonhomework::parsing_a_problem); |
|
undef($Apache::lonhomework::parsing_a_task); |
|
} |
|
|
|
# with no arg it returns a HTML <option> list of the template titles |
|
# with one arg it returns the filename associated with the arg passed |
|
sub get_template_list { |
|
my ($namewanted,$extension) = @_; |
|
my $result; |
|
my @allnames; |
|
&Apache::lonxml::debug("Looking for :$extension:"); |
|
foreach my $file (</home/httpd/html/res/adm/includes/templates/*.$extension>) { |
|
&Apache::lonxml::debug("Looking at $file"); |
|
my $name=&Apache::lonnet::metadata($file,'title'); |
|
&Apache::lonxml::debug("Got a name $name"); |
|
if ($namewanted && ($name eq $namewanted)) { |
|
$result=$file; |
|
last; |
|
} else { |
|
if ($name) { push (@allnames, $name); } |
|
} |
|
} |
|
if (@allnames && !$result) { |
|
$result="<option>".&mt("Select a")." $extension ".&mt('template')."</option>\n<option>". |
|
join('</option><option>',sort(@allnames)).'</option>'; |
|
} |
|
return $result; |
|
} |
|
|
|
sub newproblem { |
|
my ($request) = @_; |
|
my $extension=$request->uri; |
|
$extension=~s:^.*\.([\w]+)$:$1:; |
|
&Apache::lonxml::debug("Looking for :$extension:"); |
|
my $templatelist=&get_template_list('',$extension); |
|
if ($env{'form.template'} && |
|
$env{'form.template'} ne "Select a $extension template") { |
|
use File::Copy; |
|
my $file = &get_template_list($env{'form.template'},$extension); |
|
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
|
copy($file,$dest); |
|
&renderpage($request,$dest); |
|
} elsif($env{'form.newfile'} && !$templatelist) { |
|
# I don't like hard-coded filenames but for now, this will work. |
|
use File::Copy; |
|
my $templatefilename = |
|
$request->dir_config('lonIncludes').'/templates/blank.'.$extension; |
|
&Apache::lonxml::debug("$templatefilename"); |
|
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
|
copy($templatefilename,$dest); |
|
&renderpage($request,$dest); |
|
} else { |
|
my $url=&HTML::Entities::encode($request->uri,'<>&"'); |
|
my $shownurl=$url; |
|
$shownurl=~s-^/~-/priv/-; |
|
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
|
my $errormsg; |
|
if ($env{'form.newfile'}) { |
|
$errormsg='<p><span class="LC_error">'.&mt('You did not select a template.').'</span></p>'."\n"; |
|
} |
|
my $instructions; |
|
my $start_page = |
|
&Apache::loncommon::start_page("Create New $extension"); |
|
$request->print(" |
|
$start_page |
|
<h1>".&mt("Creating a new $extension resource.")."</h1> |
|
$errormsg |
|
".&mt("The requested file [_1] currently does not exist.", |
|
"<tt>$shownurl</tt>")." |
|
<p> |
|
<b> |
|
".&mt("To create a new $extension, select a template from the". |
|
"pull-down menu below. Then click on the \"Create $extension\" button.")."</b> |
|
</p><form action=\"$url\" method=\"POST\">"); |
|
|
|
if (defined($templatelist)) { |
|
$request->print("<select name=\"template\">$templatelist</select>"); |
|
} |
|
$request->print("<br /><input type=\"submit\" name=\"newfile\" value=\"".&mt('Create')." $extension\" />"); |
|
$request->print("</form></p>".&Apache::loncommon::end_page()); |
|
} |
|
return ''; |
|
} |
|
|
|
sub update_construct_style { |
|
if ($env{'request.state'} eq "construct" |
|
&& $env{'form.problemmode'} eq &mt('View') |
|
&& defined($env{'form.submitted'}) |
|
&& !defined($env{'form.resetdata'}) |
|
&& !defined($env{'form.newrandomization'})) { |
|
if ((!$env{'form.style_file'} && $env{'construct.style'}) |
|
||$env{'form.clear_style_file'}) { |
|
&Apache::lonnet::delenv('construct\\.style'); |
|
} elsif ($env{'form.style_file'} |
|
&& $env{'construct.style'} ne $env{'form.style_file'}) { |
|
&Apache::lonnet::appenv('construct.style' => |
|
$env{'form.style_file'}); |
|
} |
|
} |
|
} |
|
|
|
|
sub handler { |
sub handler { |
my $request=$_[0]; |
#my $t0 = [&gettimeofday()]; |
|
my $request=$_[0]; |
if ( $ENV{'user.name'} eq 'albertel' ) {$Apache::lonxml::debug=1;} |
$Apache::lonxml::request=$request; |
|
$Apache::lonxml::debug=$env{'user.debug'}; |
my (@targets) = &get_target(); |
$env{'request.uri'}=$request->uri; |
|
&setuppermissions(); |
if ($ENV{'browser.mathml'}) { |
# some times multiple problemmodes are submitted, need to select |
$request->content_type('text/xml'); |
# the last one |
} else { |
if ( defined($env{'form.problemmode'}) && ref($env{'form.problemmode'}) ) { |
$request->content_type('text/html'); |
my $mode=$env{'form.problemmode'}->[-1]; |
} |
undef $env{'form.problemmode'}; |
$request->send_http_header; |
$env{'form.problemmode'}=$mode; |
return OK if $request->header_only; |
} |
|
|
#setup permissions |
|
$Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'}); |
|
$Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}); |
|
|
|
#check if we know where we are |
|
if ($ENV{'request.course.fn'} && !&Apache::lonnet::symbread()) { |
|
# if we are browsing we might not be able to know where we are |
|
if ($Apache::lonhomework::browse ne 'F') { |
|
#should know where we are, so ask |
|
$request->internal_redirect('/adm/ambiguous'); return; |
|
} |
|
} |
|
|
|
&Apache::lonhomework::send_header($request); |
|
&Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:"); |
|
|
|
foreach my $target (@targets) { |
|
my $file=&Apache::lonnet::filelocation("",$request->uri); |
my $file=&Apache::lonnet::filelocation("",$request->uri); |
my $problem=&Apache::lonnet::getfile($file); |
|
if ($problem == -1) { |
#check if we know where we are |
&Apache::lonxml::error("<b> Unable to find <i>$file</i></b>"); |
if ($env{'request.course.fn'} && !&Apache::lonnet::symbread()) { |
$problem=''; |
# if we are browsing we might not be able to know where we are |
} |
if ($Apache::lonhomework::browse ne 'F' && |
|
$env{'request.state'} ne "construct") { |
my %mystyle; |
#should know where we are, so ask |
my $result = ''; |
&unset_permissions(); |
&Apache::inputtags::initialize_inputtags; |
$request->internal_redirect('/adm/ambiguous'); |
%Apache::lonhomework::results=(); |
return OK; |
%Apache::lonhomework::history=&Apache::lonnet::restore(); |
} |
#ignore error conditions |
} |
my ($temp)=keys %Apache::lonhomework::history ; |
if (&setupheader($request)) { |
if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); } |
&unset_permissions(); |
if ($target eq 'web') { |
return OK; |
if (&Apache::lonnet::symbread() eq '') { |
} |
if ($ENV{'request.state'} eq "construct") { |
&Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:$Apache::lonhomework::modifygrades:$Apache::lonhomework::queuegrade"); |
$request->print("In construction space, submissions ignored<br />"); |
&Apache::lonxml::debug("Problem Mode ".$env{'form.problemmode'}); |
} else { |
my ($symb) = &Apache::lonnet::whichuser(); |
$request->print("Browsing or <a href=\"/adm/ambiguous\">ambiguous</a> reference, submissions ignored<br />"); |
&Apache::lonxml::debug('symb is '.$symb); |
} |
if ($env{'request.state'} eq "construct") { |
} |
if ( -e $file ) { |
if ($Apache::lonhomework::viewgrades eq 'F') {&createmenu('grade',$request); } |
&Apache::loncommon::get_unprocessed_cgi($ENV{'QUERY_STRING'}, |
} |
['problemmode']); |
if ($target eq 'grade') { |
if (!(defined $env{'form.problemmode'})) { |
my $resultkey; |
#first visit to problem in construction space |
foreach $resultkey (sort keys %Apache::lonhomework::history) { |
$env{'form.problemmode'}='View'; |
&Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::history{$resultkey}"); |
&renderpage($request,$file); |
} |
} elsif ($env{'form.problemmode'} eq &mt('EditXML') || |
&Apache::lonxml::debug("\n<br />restored values^</br>\n"); |
$env{'form.problemmode'} eq 'EditXML') { |
} |
&editxmlmode($request,$file); |
my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm'); |
} elsif ($env{'form.problemmode'} eq &mt('Calculate answers')) { |
if ($default == -1) { |
&analyze($request,$file); |
&Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>"); |
} else { |
$default=''; |
&update_construct_style(); |
} |
&renderpage($request,$file); |
$result = &Apache::lonxml::xmlparse($target, $problem, |
} |
$default.&setup_vars($target),%mystyle); |
} else { |
|
# requested file doesn't exist in contruction space |
#$request->print("Result follows:"); |
&newproblem($request); |
if ($target eq 'modified') { |
} |
my $fileout = &Apache::lonnet::filelocation("",$request->uri); |
} else { |
my $filesave=$fileout.".bak"; |
# just render the page normally outside of construction space |
|
&Apache::lonxml::debug("not construct"); |
my $fs=Apache::File->new(">$filesave"); |
&renderpage($request,$file); |
print $fs $problem; |
} |
$request->print("<b>Making Backup to $filesave</b><br />"); |
#my $td=&tv_interval($t0); |
|
#&Apache::lonxml::debug("Spent $td seconds processing"); |
my $fh=Apache::File->new(">$fileout"); |
# always turn off debug messages |
print $fh $result; |
$Apache::lonxml::debug=0; |
$request->print("<b>Saving Modifications to $fileout</b><br />"); |
&unset_permissions(); |
} else { |
return OK; |
$request->print($result); |
|
} |
|
#$request->print(":Result ends"); |
|
if ($target eq 'grade') { |
|
|
|
my $resultkey; |
|
foreach $resultkey (sort keys %Apache::lonhomework::results) { |
|
&Apache::lonxml::debug("$resultkey ---- $Apache::lonhomework::results{$resultkey}"); |
|
} |
|
&Apache::lonxml::debug("\n<br />storing values^</br>\n"); |
|
} |
|
|
|
my ($temp) = keys %Apache::lonhomework::results; |
|
if ( $temp ne '' ) { |
|
&Apache::lonxml::debug("Store return message:".&Apache::lonnet::cstore(\%Apache::lonhomework::results)); |
|
} |
|
} |
|
&Apache::lonhomework::send_footer($request); |
|
# always turn of debug messages |
|
$Apache::lonxml::debug=0; |
|
return OK; |
|
|
|
} |
} |
|
|