version 1.49, 2001/07/18 18:45:37
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version 1.70, 2002/01/30 17:39:13
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# The LearningOnline Network with CAPA |
# The LON-CAPA Homework handler |
# The LON-CAPA Homework handler |
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# |
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# $Id$ |
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# |
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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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# |
# Guy Albertelli |
# Guy Albertelli |
# 11/30 Gerd Kortemeyer |
# 11/30 Gerd Kortemeyer |
# 6/1 Gerd Kortemeyer |
# 6/1,8/17,8/18 Gerd Kortemeyer |
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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; |
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use Apache::lonplot; |
use Apache::inputtags; |
use Apache::inputtags; |
use Apache::structuretags; |
use Apache::structuretags; |
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use Apache::randomlabel; |
use Apache::response; |
use Apache::response; |
use Apache::hint; |
use Apache::hint; |
use Apache::outputtags; |
use Apache::outputtags; |
use Apache::Constants qw(:common); |
use Apache::Constants qw(:common); |
#use Time::HiRes qw( gettimeofday tv_interval ); |
#use Time::HiRes qw( gettimeofday tv_interval ); |
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sub BEGIN { |
BEGIN { |
&Apache::lonxml::register_insert(); |
&Apache::lonxml::register_insert(); |
} |
} |
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sub get_target { |
sub get_target { |
if ( $ENV{'request.state'} eq "published") { |
if ( $ENV{'request.state'} eq "published") { |
if ( defined $ENV{'form.submitted'}) { |
if ( defined($ENV{'form.grade_target'}) |
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&& ($Apache::lonhomework::viewgrades == 'F' )) { |
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return ($ENV{'form.grade_target'}); |
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} |
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if ( defined($ENV{'form.submitted'})) { |
return ('grade', 'web'); |
return ('grade', 'web'); |
} else { |
} else { |
return ('web'); |
return ('web'); |
} |
} |
} elsif ($ENV{'request.state'} eq "construct") { |
} elsif ($ENV{'request.state'} eq "construct") { |
if ( defined $ENV{'form.preview'}) { |
if ( defined($ENV{'form.preview'})) { |
if ( defined $ENV{'form.submitted'}) { |
if ( defined($ENV{'form.submitted'})) { |
return ('grade', 'web'); |
return ('grade', 'web'); |
} else { |
} else { |
return ('web'); |
return ('web'); |
} |
} |
} else { |
} else { |
if ( $ENV{'form.problemmode'} eq 'View' ) { |
if ( $ENV{'form.problemmode'} eq 'View' ) { |
if ( defined $ENV{'form.submitted'}) { |
if ( defined($ENV{'form.submitted'}) && |
return ('grade', 'web'); |
(!defined($ENV{'form.resetdata'})) ) { |
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return ('grade', 'web','answer'); |
} else { |
} else { |
return ('web'); |
return ('web','answer'); |
} |
} |
} elsif ( $ENV{'form.problemmode'} eq 'Edit' ) { |
} elsif ( $ENV{'form.problemmode'} eq 'Edit' ) { |
if ( $ENV{'form.submitted'} eq 'edit' ) { |
if ( $ENV{'form.submitted'} eq 'edit' ) { |
Line 84 sub send_footer {
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Line 117 sub send_footer {
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} |
} |
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$Apache::lonxml::browse=''; |
$Apache::lonxml::browse=''; |
sub check_date { |
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sub check_access { |
my ($id) = @_; |
my ($id) = @_; |
my $date =''; |
my $date =''; |
my $status = ''; |
my $status = ''; |
Line 130 sub check_date {
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Line 164 sub check_date {
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if ( $maxtries eq '' ) { $maxtries = '2'; } |
if ( $maxtries eq '' ) { $maxtries = '2'; } |
if ($tries >= $maxtries) { $status = 'CANNOT_ANSWER'; } |
if ($tries >= $maxtries) { $status = 'CANNOT_ANSWER'; } |
} |
} |
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if (($status ne 'CLOSED') && ($Apache::lonhomework::type eq 'exam') && |
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(!$Apache::lonhomework::history{"resource.0.outtoken"})) { |
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return ('UNCHECKEDOUT','needs to be checked out'); |
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} |
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&Apache::lonxml::debug("sending back :$status:$datemsg:"); |
&Apache::lonxml::debug("sending back :$status:$datemsg:"); |
if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) { |
if (($Apache::lonhomework::browse eq 'F') && ($status eq 'CLOSED')) { |
&Apache::lonxml::debug("should be allowed to browse a resource when closed"); |
&Apache::lonxml::debug("should be allowed to browse a resource when closed"); |
Line 167 sub setupheader {
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Line 208 sub setupheader {
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} else { |
} else { |
$request->content_type('text/html'); |
$request->content_type('text/html'); |
} |
} |
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if (!$Apache::lonxml::debug && ($ENV{'REQUEST_METHOD'} eq 'GET')) { |
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&Apache::loncommon::no_cache($request); |
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} |
$request->send_http_header; |
$request->send_http_header; |
return OK if $request->header_only; |
return OK if $request->header_only; |
return '' |
return '' |
Line 174 sub setupheader {
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Line 218 sub setupheader {
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sub handle_save_or_undo { |
sub handle_save_or_undo { |
my ($request,$problem,$result) = @_; |
my ($request,$problem,$result) = @_; |
my $fileout = &Apache::lonnet::filelocation("",$request->uri); |
my $file = &Apache::lonnet::filelocation("",$request->uri); |
my $filesave=$fileout.".bak"; |
my $filebak =$file.".bak"; |
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my $filetmp =$file.".tmp"; |
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my $error=0; |
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if ($ENV{'form.Undo'} eq 'undo') { |
if ($ENV{'form.Undo'} eq 'undo') { |
if (copy($filesave,$fileout)) { |
my $error=0; |
$request->print("<b>Undid changes, Copied $filesave to $fileout<br /></b>"); |
if (!copy($file,$filetmp)) { $error=1; } |
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if ((!$error) && (!copy($filebak,$file))) { $error=1; } |
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if ((!$error) && (!move($filetmp,$filebak))) { $error=1; } |
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if (!$error) { |
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$request->print("<p><b>Undid changes, Switched $filebak and $file</b></p>"); |
} else { |
} else { |
$request->print("<font color=\"red\" size=\"+1\"><b>Unable to undo, unable to copy $filesave to $fileout<br /></b></font>"); |
$request->print("<p><font color=\"red\" size=\"+1\"><b>Unable to undo, unable to switch $filebak and $file</b></font></p>"); |
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$error=1; |
} |
} |
} else { |
} else { |
my $fs=Apache::File->new(">$filesave"); |
my $fs=Apache::File->new(">$filebak"); |
if (defined($fs)) { |
if (defined($fs)) { |
print $fs $$problem; |
print $fs $$problem; |
$request->print("<b>Making Backup to $filesave</b><br />"); |
$request->print("<b>Making Backup to $filebak</b><br />"); |
} else { |
} else { |
$request->print("<font color=\"red\" size=\"+1\"><b>Unable to make backup $filesave</b></font>"); |
$request->print("<font color=\"red\" size=\"+1\"><b>Unable to make backup $filebak</b></font>"); |
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$error=2; |
} |
} |
my $fh=Apache::File->new(">$fileout"); |
my $fh=Apache::File->new(">$file"); |
if (defined($fh)) { |
if (defined($fh)) { |
print $fh $$result; |
print $fh $$result; |
$request->print("<b>Saving Modifications to $fileout</b><br />"); |
$request->print("<b>Saving Modifications to $file</b><br />"); |
} else { |
} else { |
$request->print("<font color=\"red\" size=\"+1\"><b>Unable to write to $fileout</b></font>"); |
$request->print("<font color=\"red\" size=\"+1\"><b>Unable to write to $file</b></font>"); |
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$error|=4; |
} |
} |
} |
} |
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return $error; |
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} |
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sub editxmlmode { |
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my ($request,$file) = @_; |
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my $result; |
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my $problem=&Apache::lonnet::getfile($file); |
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if ($problem == -1) { |
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&Apache::lonxml::error("<b> Unable to find <i>$file</i></b>"); |
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$problem=''; |
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} |
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if (defined($ENV{'form.editxmltext'}) || defined($ENV{'form.Undo'})) { |
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my $error=&handle_save_or_undo($request,\$problem, |
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\$ENV{'form.editxmltext'}); |
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if (!$error) { $problem=&Apache::lonnet::getfile($file); } |
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} |
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my ($rows,$cols) = &Apache::edit::textarea_sizes(\$problem); |
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if ($cols > 80) { $cols = 80; } |
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$result.='<html><body bgcolor="#FFFFFF"> |
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<form name="lonhomework" method="POST" action="'. |
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$ENV{'request.uri'}.'"> |
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<input type="hidden" name="problemmode" value="EditXML" /> |
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<input type="submit" name="problemmode" value="View" /> |
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<input type="submit" name="problemmode" value="Edit" /> |
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<hr /> |
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<input type="submit" name="submit" value="Submit Changes" /> |
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<input type="submit" name="Undo" value="undo" /> |
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<hr /> |
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<textarea rows="'.$rows.'" cols="'.$cols.'" name="editxmltext">'. |
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$problem.'</textarea> |
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</form></body></html>'; |
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$request->print($result); |
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return ''; |
} |
} |
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sub renderpage { |
sub renderpage { |
my ($request,$file) = @_; |
my ($request,$file) = @_; |
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my (@targets) = &get_target(); |
my (@targets) = &get_target(); |
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&Apache::lonxml::debug("Running targets ".join(':',@targets)); |
foreach my $target (@targets) { |
foreach my $target (@targets) { |
#my $t0 = [&gettimeofday()]; |
#my $t0 = [&gettimeofday()]; |
my $problem=&Apache::lonnet::getfile($file); |
my $problem=&Apache::lonnet::getfile($file); |
Line 217 sub renderpage {
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Line 304 sub renderpage {
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my $result = ''; |
my $result = ''; |
&Apache::inputtags::initialize_inputtags; |
&Apache::inputtags::initialize_inputtags; |
&Apache::edit::initialize_edit; |
&Apache::edit::initialize_edit; |
%Apache::lonhomework::results=(); |
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%Apache::lonhomework::history=&Apache::lonnet::restore(); |
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#ignore error conditions |
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my ($temp)=keys %Apache::lonhomework::history ; |
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if ($temp =~ m/^error:.*/) { %Apache::lonhomework::history=(); } |
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if ($target eq 'web') { |
if ($target eq 'web') { |
if (&Apache::lonnet::symbread() eq '') { |
if (&Apache::lonnet::symbread() eq '') { |
if ($ENV{'request.state'} eq "construct") { |
if ($ENV{'request.state'} eq "construct") { |
$request->print("In construction space, submissions ignored<br />"); |
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} else { |
} else { |
$request->print("Browsing or <a href=\"/adm/ambiguous\">ambiguous</a> reference, submissions ignored<br />"); |
$request->print("Browsing or <a href=\"/adm/ambiguous\">ambiguous</a> reference, submissions ignored<br />"); |
} |
} |
} |
} |
#if ($Apache::lonhomework::viewgrades eq 'F') {&createmenu('grade',$request); } |
#if ($Apache::lonhomework::viewgrades eq 'F') {&createmenu('grade',$request); } |
} |
} |
if ($target eq 'grade') { &showhash(%Apache::lonhomework::history); } |
#if ($target eq 'grade') { &showhash(%Apache::lonhomework::history); } |
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my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm'); |
my $default=&Apache::lonnet::getfile('/home/httpd/html/res/adm/includes/default_homework.lcpm'); |
if ($default == -1) { |
if ($default == -1) { |
&Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>"); |
&Apache::lonxml::error("<b>Unable to find <i>default_homework.lcpm</i></b>"); |
$default=''; |
$default=''; |
} |
} |
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&Apache::lonxml::debug("Should be parsing now"); |
$result = &Apache::lonxml::xmlparse($target, $problem, |
$result = &Apache::lonxml::xmlparse($target, $problem, |
$default.&setup_vars($target),%mystyle); |
$default.&setup_vars($target),%mystyle); |
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Line 254 sub renderpage {
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Line 336 sub renderpage {
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$request->print($result); |
$request->print($result); |
} |
} |
#$request->print(":Result ends"); |
#$request->print(":Result ends"); |
if ($target eq 'grade') { &showhash(%Apache::lonhomework::results); } |
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#store new values |
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my ($temp) = keys %Apache::lonhomework::results; |
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if ( $temp ne '' ) { |
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&Apache::lonxml::debug("Store return message:". |
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&Apache::lonnet::cstore(\%Apache::lonhomework::results)); |
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} |
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#my $td=&tv_interval($t0); |
#my $td=&tv_interval($t0); |
} |
} |
} |
} |
Line 285 sub get_template_list {
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Line 359 sub get_template_list {
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} |
} |
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sub newproblem { |
sub newproblem { |
my ($request) = @_; |
my ($request) = @_; |
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if ($ENV{'form.template'}) { |
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use File::Copy; |
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my $extension=$request->uri; |
my $extension=$request->uri; |
$extension=~s:\.([\w]+)$:$1:; |
$extension=~s:^.*\.([\w]+)$:$1:; |
my $file = &get_template_list($ENV{'form.template'},$extension); |
&Apache::lonxml::debug("Looking for :$extension:"); |
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
if ($ENV{'form.template'}) { |
copy($file,$dest); |
use File::Copy; |
&renderpage($request,$file); |
my $file = &get_template_list($ENV{'form.template'},$extension); |
} else { |
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
my $templatelist=&get_template_list(); |
copy($file,$dest); |
my $url=$request->uri; |
&renderpage($request,$dest); |
my $dest = &Apache::lonnet::filelocation("",$request->uri); |
} elsif($ENV{'form.newfile'}) { |
$request->print(<<ENDNEWPROBLEM); |
# I don't like hard-coded filenames but for now, this will work. |
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use File::Copy; |
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my $templatefilename = |
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$request->dir_config('lonIncludes').'/templates/blank.problem'; |
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&Apache::lonxml::debug("$templatefilename"); |
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my $dest = &Apache::lonnet::filelocation("",$request->uri); |
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copy($templatefilename,$dest); |
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&renderpage($request,$dest); |
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}else { |
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my $templatelist=&get_template_list('',$extension); |
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my $url=$request->uri; |
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my $dest = &Apache::lonnet::filelocation("",$request->uri); |
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if (!defined($templatelist)) { |
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# We didn't find a template, so just create a blank problem. |
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$request->print(<<ENDNEWPROBLEM); |
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<body bgcolor="#FFFFFF"> |
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The requested file $url doesn\'t exist. You can create a new $extension <br /> |
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<form action="$url" method="POST"> |
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<input type="submit" name="newfile" value="New $extension"><br /> |
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</form> |
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</body> |
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ENDNEWPROBLEM |
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return ''; |
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} |
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$request->print(<<ENDNEWPROBLEM); |
<body bgcolor="#FFFFFF"> |
<body bgcolor="#FFFFFF"> |
The request file $url doesn\'t exist. You can create a new problem <br /> |
The requested file $url doesn\'t exist. You can create a new $extension <br /> |
<form action="$url" method="POST"> |
<form action="$url" method="POST"> |
<input type="submit" value="New Problem"><br /> |
<input type="submit" value="New $extension"><br /> |
<select name="template"> |
<select name="template"> |
$templatelist |
$templatelist |
</select> |
</select> |
</form> |
</form> |
</body> |
</body> |
ENDNEWPROBLEM |
ENDNEWPROBLEM |
} |
} |
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return ''; |
return ''; |
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} |
} |
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sub view_or_edit_menu { |
sub view_or_edit_menu { |
Line 341 sub handler {
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Line 435 sub handler {
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$Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'}); |
$Apache::lonhomework::browse= &Apache::lonnet::allowed('bre',$ENV{'request.filename'}); |
$Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}); |
$Apache::lonhomework::viewgrades=&Apache::lonnet::allowed('vgr',$ENV{'request.course.id'}); |
&Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:"); |
&Apache::lonxml::debug("Permissions:$Apache::lonhomework::browse:$Apache::lonhomework::viewgrades:"); |
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&Apache::lonxml::debug("Problem Mode ".$ENV{'form.problemmode'}); |
my $file=&Apache::lonnet::filelocation("",$request->uri); |
my $file=&Apache::lonnet::filelocation("",$request->uri); |
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#check if we know where we are |
#check if we know where we are |
Line 354 sub handler {
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Line 448 sub handler {
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} |
} |
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if ($ENV{'request.state'} eq "construct") { |
if ($ENV{'request.state'} eq "construct") { |
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if ($ENV{'form.resetdata'} eq 'Reset Submissions') { |
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my ($symb,$courseid,$domain,$name) = &Apache::lonxml::whichuser(); |
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&Apache::lonnet::tmpreset($symb,'',$domain,$name); |
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} |
if ( -e $file ) { |
if ( -e $file ) { |
if (!(defined $ENV{'form.problemmode'})) { |
if (!(defined $ENV{'form.problemmode'})) { |
#first visit to problem in construction space |
#first visit to problem in construction space |
&view_or_edit_menu($request); |
#&view_or_edit_menu($request); |
#&renderpage($request,$file); |
$ENV{'form.problemmode'}='View'; |
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&renderpage($request,$file); |
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} elsif ($ENV{'form.problemmode'} eq 'EditXML') { |
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&editxmlmode($request,$file); |
} else { |
} else { |
&renderpage($request,$file); |
&renderpage($request,$file); |
} |
} |