version 1.2, 2009/04/03 15:40:17
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version 1.24, 2014/12/12 14:21:22
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# The LearningOnline Network with CAPA |
# The LearningOnline Network with CAPA |
# Publication Handler |
# PDF Form Upload Handler |
# |
# |
# $Id$ |
# $Id$ |
# |
# |
Line 29 package Apache::lonpdfupload;
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Line 29 package Apache::lonpdfupload;
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use lib '/home/httpd/lib/perl'; |
use lib '/home/httpd/lib/perl'; |
use Apache::Constants qw(:common :http); |
use Apache::Constants qw(:common :http); |
use LONCAPA; |
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use LONCAPA::loncgi; |
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use File::Path; |
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use File::Basename; |
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use File::Copy; |
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use IO::File; |
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use Image::Magick; |
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use Apache::lonacc; |
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use Apache::lonxml; |
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use Apache::lonhtmlcommon(); |
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use Apache::lonnet; |
use Apache::lonnet; |
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use Apache::lonhtmlcommon(); |
use Apache::loncommon(); |
use Apache::loncommon(); |
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use Apache::lonnavmaps(); |
use Apache::lonlocal; |
use Apache::lonlocal; |
use Apache::lonmsg(); |
use File::MMagic; |
use Apache::lonhomework; |
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use LONCAPA::Enrollment; |
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use LONCAPA::Configuration; |
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use CAM::PDF; |
use CAM::PDF; |
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use LONCAPA qw(:DEFAULT :match); |
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use strict; |
use strict; |
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sub handler() { |
sub handler() { |
my $r = shift; |
my $r = shift; |
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&Apache::loncommon::content_type($r,'text/html'); |
# check user permissions |
$r->send_http_header; |
if(!&checkpermission($r)) { |
return OK if $r->header_only; |
# stop processing |
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return OK; |
# Needs to be in a course |
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if (!$env{'request.course.fn'}) { |
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# Not in a course |
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$env{'user.error.msg'}="/adm/pdfupload:bre:0:0:Cannot upload PDF forms unless in a course"; |
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return HTTP_NOT_ACCEPTABLE; |
} |
} |
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$Apache::lonxml::request=$r; |
# Breadcrumbs |
$Apache::lonxml::debug=$env{'user.debug'}; |
my $brcrum = [{'href' => '/adm/pdfupload', |
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'text' => 'Upload PDF Form'}]; |
$env{'request.uri'}=$r->uri; |
if ($env{'form.Uploaded'} && $env{'form.file'}) { |
$r->content_type('text/html'); |
push(@{$brcrum},{'href' => '', |
$r->send_http_header(); |
'text' => 'PDF upload result'}); |
$r->print(&Apache::loncommon::start_page('Upload-PDF-Form')); |
} |
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#load post data into environment |
$r->print(&Apache::loncommon::start_page('Upload PDF Form', |
&Apache::lonacc::get_posted_cgi($r); |
undef, |
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{'bread_crumbs' => $brcrum,}) |
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); |
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if ($env{'request.course.id'}) { |
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my $permission = $env{'course.'.$env{'request.course.id'}.'.canuse_pdfforms'}; |
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if ($permission eq '') { |
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my %domdefs = &Apache::lonnet::get_domain_defaults($env{'course.'.$env{'request.course.id'}.'.domain'}); |
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$permission = $domdefs{'canuse_pdfforms'}; |
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} |
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unless ($permission) { |
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$r->print('<p class="LC_warning">'. |
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&mt('Upload of PDF forms is not permitted for this course.'). |
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'</p>'. |
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&Apache::loncommon::end_page()); |
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return OK; |
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} |
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} else { |
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$r->print('<p class="LC_warning">'. |
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&mt('Could not determine identity of this course.').' '. |
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&mt('You may need to [_1]re-select[_2] the course.','<a href="/adm/roles">','</a>'). |
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'</p>'. |
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&Apache::loncommon::end_page()); |
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return OK; |
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} |
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# if a file was upload |
# if a file was upload |
if($env{'form.Uploaded'} && $env{'form.file'}) { |
if($env{'form.Uploaded'} && $env{'form.file'}) { |
$r->print(&processPDF); |
my $mm = new File::MMagic; |
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my $mime_type = $mm->checktype_contents($env{'form.file'}); |
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if ($mime_type eq 'application/pdf') { |
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$r->print(&processPDF); |
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} else { |
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$r->print('<p class="LC_error">' |
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.&mt("The uploaded file does not appear to be a PDF file.") |
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.'</p>'); |
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} |
} else { |
} else { |
# print upload form |
# print upload form |
$r->print(&get_javascripts); |
$r->print(&get_javascripts); |
Line 80 sub handler() {
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Line 106 sub handler() {
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} |
} |
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#link to course-content |
#link to course-content |
$r->print(" <br />\n <a href='/adm/navmaps'>\n ".&mt("Navigate Contents")."\n </a>\n <br />"); |
$r->print('<hr />' |
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.'<p>'."\n" |
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.'<a href="/adm/navmaps">'."\n" |
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.&mt('Course Contents')."\n" |
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.'</a>'."\n" |
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.'</p>'."\n" |
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); |
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#&dumpenv($r); #debug -> prints the environment |
#&dumpenv($r); #debug -> prints the environment |
$r->print(" </body> \n</html>\n"); |
$r->print(&Apache::loncommon::end_page()); |
return OK; |
return OK; |
} |
} |
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sub checkpermission() { |
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my $r = shift; |
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if (! &LONCAPA::loncgi::check_cookie_and_load_env()) { |
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my $result = <<END |
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Content-type: text/html |
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<html> |
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<head> |
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<title> |
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Bad Cookie |
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</title> |
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</head> |
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<body> |
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Your cookie information is incorrect. |
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</body> |
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</html> |
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END |
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; |
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$r->print($result); |
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return 0; |
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} else { |
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return 1; |
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} |
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} |
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sub get_javascripts() { |
sub get_javascripts() { |
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my $message = &mt('Please choose a PDF-File'); |
my $message = &mt('Please choose a PDF-File.'); |
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# simple test if the upload ends with ".pdf" |
# simple test if the upload ends with ".pdf" |
# it's only for giving a message to the user |
# it's only for giving a message to the user |
my $result .= <<END |
my $result .= <<END |
<script type="text/javascript"> |
<script type="text/javascript"> |
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// <![CDATA[ |
function checkFilename(form) { |
function checkFilename(form) { |
var fileExt = form.file.value; |
var fileExt = form.file.value; |
fileExt = fileExt.match(/[.]pdf\$/g); |
fileExt = fileExt.match(/[.]pdf\$/gi); |
if(fileExt) { |
if(fileExt) { |
return true; |
return true; |
} |
} |
alert("$message"); |
alert("$message"); |
return false; |
return false; |
} |
} |
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// ]]> |
</script> |
</script> |
END |
END |
; |
; |
Line 139 END
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Line 146 END
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sub get_uploadform() { |
sub get_uploadform() { |
my $result = <<END |
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<p height='25'> |
my %lt = &Apache::lonlocal::texthash( |
</p> |
'title' => 'Upload a PDF Form with filled Form Fields', |
<form method="post" enctype="multipart/form-data" onsubmit="return checkFilename(this);"> |
'chFile' => 'File', |
<input type="hidden" name="type" value="upload"> |
'submit' => 'Upload', |
<div align="center"> |
); |
<table bgcolor="#000000" width="450" cellspacing="0" cellpadding="0" border="0"> |
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<tr> |
my $result = |
<td> |
'<br />' |
<table cellspacing="1" cellpadding="2" border="0" width="100%"> |
.'<form method="post" enctype="multipart/form-data" onsubmit="return checkFilename(this);" action="">' |
<tr> |
.&Apache::lonhtmlcommon::start_pick_box() |
<td colspan="2" bgcolor="#99EEEE"> |
.&Apache::lonhtmlcommon::row_headline() |
<b>PDF-Formular einsenden</b> |
.'<h2>'.$lt{'title'}.'</h2>' |
</td> |
.&Apache::lonhtmlcommon::row_closure() |
</tr> |
.&Apache::lonhtmlcommon::row_title($lt{'chFile'}) |
<tr> |
.'<input type="file" name="file" id="filename" />' |
<td bgcolor="#F8F8F8"> |
.&Apache::lonhtmlcommon::row_closure(1) |
Datei auswählen |
.&Apache::lonhtmlcommon::end_pick_box() |
</td> |
.'<p>' |
<td bgcolor="#F8F8F8"> |
.'<input type="submit" name="Uploaded" value="'.$lt{'submit'}.'" />' |
<input type="file" name="file" id="filename"> |
.'</p>' |
</td> |
.'</form>' |
</tr> |
.'<br />'; |
<tr> |
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<td bgcolor="#F8F8F8" colspan="2" align="right" style="margin-right: 30px;"> |
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<input type="submit" name="Uploaded" value="Absenden" > |
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</td> |
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</tr> |
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</table> |
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</td> |
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</tr> |
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</table> |
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</div> |
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</form> |
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END |
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; |
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return $result; |
return $result; |
} |
} |
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Line 187 sub processPDF {
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Line 182 sub processPDF {
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if (scalar @pdfdata) { |
if (scalar @pdfdata) { |
&grade_pdf(@pdfdata); |
&grade_pdf(@pdfdata); |
} else { |
} else { |
$result .= "<h2>".&mt("Can't find any valid PDF-formfields")."</h2>"; |
$result .= '<p class="LC_error">' |
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.&mt("Can't find any valid PDF form fields.") |
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.'</p>'; |
} |
} |
} |
} |
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Line 195 sub get_pdf_data() {
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Line 192 sub get_pdf_data() {
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my @data = (); |
my @data = (); |
my $pdf = CAM::PDF->new($env{'form.file'}); |
my $pdf = CAM::PDF->new($env{'form.file'}); |
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my @formFields = $pdf->getFormFieldList(); #get names of formfields |
if($pdf) { |
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my @formFields = $pdf->getFormFieldList(); #get names of form fields |
foreach my $field (@formFields) { |
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my $dict = $pdf->getFormFieldDict($pdf->getFormField($field)); # get formfield dictonary |
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# |
foreach my $field (@formFields) { |
# this is nessesary 'cause CAM::PDF has a problem with formfieldnames which include a |
my $dict = $pdf->getFormFieldDict($pdf->getFormField($field)); # get form field dictonary |
# dot in fieldnames. So a fieldname like "i.am.aFormfield" will offer three fieldnames "i", "i.am" |
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# and "i.am.aFormfield". The fragmentary names keep no values and will be ignored. |
# this is necessary because CAM::PDF has a problem with form fieldnames which include a |
if($dict->{'V'}) { |
# dot in fieldnames. So a fieldname like "i.am.aFormfield" will offer three fieldnames |
push(@data, $field."?". $dict->{'V'}{'value'}); #binding fieldname with value |
# "i", "i.am" and "i.am.aFormfield". The fragmentary names keep no values and will be ignored. |
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if($dict->{'V'}) { |
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push(@data, $field."?". $dict->{'V'}{'value'}); #binding fieldname with value |
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} |
} |
} |
} |
} |
return @data; |
return @data; |
} |
} |
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sub grade_pdf { |
sub grade_pdf { |
my $result = (); |
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my @pdfdata = @_; |
my @pdfdata = @_; |
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my ($result,$meta,%grades,%problems,%foreigncourse,$debug); |
my $meta = (); |
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my %grades = (); |
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my %problems = (); |
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my $debug = (); |
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my $navmap = Apache::lonnavmaps::navmap->new(); |
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if (!defined($navmap)) { |
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$result = '<h3>'.&mt('Verification of PDF form items failed').'</h3>'. |
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'<div class="LC_error">'. |
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&mt('Unable to retrieve information about course contents').' '. |
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&mt('You may need to [_1]re-select[_2] the course.','<a href="/adm/roles">','</a>'). |
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'</div>'; |
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return $result; |
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} |
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my %restitles; |
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foreach my $res ($navmap->retrieveResources()) { |
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my $symb = $res->symb; |
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$restitles{$symb} = $res->compTitle(); |
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} |
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$debug .= "Found: ". scalar @pdfdata." Entries \n"; |
$debug .= "Found: ". scalar @pdfdata." Entries \n"; |
$result .= "<table width='80%'>\n"; |
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foreach my $entry (sort(@pdfdata)) { |
foreach my $entry (sort(@pdfdata)) { |
if ($entry =~ /^meta.*/) { |
if ($entry =~ /^meta.*/) { |
$debug .= 'found: metadata -> '.$entry . "<br />"; |
$debug .= 'found: metadata -> '.$entry . "<br />"; |
my ($label, $value) = ($entry =~ /^([^?]*)\?(.*)/); |
my ($label, $value) = ($entry =~ /^([^?]*)\?(.*)/); |
my ($domain, $user) = split('&', $value); |
my ($domain, $user) = split('&', $value); |
$user =~ s/(.*)\n/$1/; #TODO find an other way |
$user =~ s/(.*)\n/$1/; #TODO is that equals to chomp? |
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if($user ne $env{'user.name'} or $domain ne $env{'user.domain'}) { |
if($user ne $env{'user.name'} or $domain ne $env{'user.domain'}) { |
return "<pre>".&mt('Wrong username in PDF-File').": $user $domain -> $env{'user.domain'} $env{'user.name'} </pre>"; |
return '<p class="LC_error">' |
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.&mt('Wrong username ([_1]) found in PDF file. Expected username: [_2]' |
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,$user.':'.$domain |
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,$env{'user.domain'}.':'.$env{'user.name'}) |
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.'</p>'; |
} |
} |
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} elsif($entry =~ /^upload.*/) { |
} elsif ($entry =~ /^upload.*/) { |
$debug .= 'found: a problem -> '.$entry; |
$debug .= 'found: a problem -> '.$entry; |
my ($label, $value) = ($entry =~ /^([^?]*)\?(.*)/); |
my ($label, $value) = ($entry =~ /^([^?]*)\?(.*)/); |
my ($symb, $part, $type, $HWVAL) = split('&', $label); |
my ($symb, $part, $type, $HWVAL) = split('&', $label); |
my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symb); |
my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symb); |
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if ($map =~ m{^uploaded/($match_domain)/($match_courseid)/default(_?\d*)\.(page|sequence)}) { |
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my $mapcid = $1.'_'.$2; |
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if ($mapcid ne $env{'request.course.id'}) { |
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push(@{$foreigncourse{$mapcid}},$symb); |
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} |
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} |
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next unless (exists($restitles{$symb})); |
$value =~ s/(.*)\n/$1/; |
$value =~ s/(.*)\n/$1/; |
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#fehlerhafte Radiobuttons rausfiltern (Bug in CABAReT Stage) |
#filter incorrect radiobuttons (Bug in CABAReT Stage) |
if($type eq 'radiobuttonresponse' && $value eq 'Off' ) { |
if ($type eq 'radiobuttonresponse' && $value eq 'Off' ) { |
next; |
next; |
} |
} |
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my $submit = $part; |
my $submit = $part; |
$submit =~ s/part_(.*)/submit_$1/; |
$submit =~ s/part_(.*)/submit_$1/; |
if($problems{$symb.$part}) { |
if ($problems{$symb.$part}) { |
$problems{$symb.$part}{$HWVAL} = $value; |
$problems{$symb.$part}{$HWVAL} = $value; |
} else { |
} else { |
$problems{$symb.$part} = { 'resource' => $resource, |
$problems{$symb.$part} = { 'resource' => $resource, |
Line 262 sub grade_pdf {
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Line 279 sub grade_pdf {
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next; |
next; |
} |
} |
} |
} |
$result .= $debug; |
#$result .= $debug; |
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foreach my $key (sort (keys %problems)) { |
$result .= '<h3>'.&mt('Result of PDF Form upload').'</h3>'; |
my %problem = %{$problems{$key}}; |
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my ($problemname, $grade) = &grade_problem(%problem); |
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$result .= "<tr style='background-color: #EEF5F5;'><td>$problemname</td><td style='background-color: "; |
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if($grade eq "EXACT_ANS") { |
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$result .= "#DDFFDD"; |
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} else { |
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$result .= "#DD5555"; |
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} |
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$result .= "'>$grade</td></tr>"; |
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if (keys(%problems) > 0) { |
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$result .= &Apache::loncommon::start_data_table() |
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.&Apache::loncommon::start_data_table_header_row() |
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.'<th>'.&mt('Problem Name').'</th>' |
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.'<th>'.&mt('Grading').'</th>' |
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.&Apache::loncommon::start_data_table_header_row() |
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.&Apache::loncommon::end_data_table_header_row(); |
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foreach my $key (sort(keys(%problems))) { |
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my %problem = %{$problems{$key}}; |
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my ($problemname, $grade) = &grade_problem(%problem); |
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$result .= &Apache::loncommon::start_data_table_row(); |
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$result .= '<td><a href="/res/'.$problem{'resource'}. |
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'?symb='. |
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&HTML::Entities::encode($problem{'symb'},'"&<>'). |
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'">'.$problemname.'</a></td><td><span class="'; |
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if ($grade eq "EXACT_ANS" || $grade eq "APPROX_ANS") { |
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$result .= 'LC_answer_correct'; |
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} elsif ($grade eq "DRAFT") { |
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$result .= 'LC_answer_not_charged_try'; |
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} else { |
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$result .= 'LC_answer_charged_try'; |
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} |
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$result .= '">'; |
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$grade = &parse_grade_answer($grade); |
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$result .= $grade.'</span></td>'; |
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$result .= &Apache::loncommon::end_data_table_row(); |
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} |
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$result .= &Apache::loncommon::end_data_table(); |
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} else { |
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$result .= '<p class="LC_warning">'. |
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&mt('As no gradable form items were found, no submissions have been recorded.'). |
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'</p>'; |
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} |
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if (keys(%foreigncourse)) { |
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my ($numother,$othercrsmsg); |
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foreach my $cid (sort(keys(%foreigncourse))) { |
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my %coursehash = &Apache::lonnet::coursedescription($cid, |
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{'one_time' => 1}); |
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if (ref($foreigncourse{$cid}) eq 'ARRAY') { |
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if ($numother) { |
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$othercrsmsg .= '</li><li>'; |
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} |
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$othercrsmsg .= '<b>'.$coursehash{'description'}.'</b><ul>'."\n"; |
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foreach my $symb (@{$foreigncourse{$cid}}) { |
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my ($map,$id,$resource)=&Apache::lonnet::decode_symb($symb); |
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$othercrsmsg .= '<li>'.$resource.'</li>'; |
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} |
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$othercrsmsg .= '</ul>'; |
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$numother ++; |
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} |
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} |
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if ($numother) { |
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$result .= '<div class="LC_warning">'; |
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if ($numother > 1) { |
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$result .= &mt('Your uploaded PDF form contained the following resource(s) from [_1] different courses:','<b>'.$numother.'</b>')."\n".'<ul><li>'. |
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$othercrsmsg.'</li></ul>'; |
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} else { |
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$result .= &mt('Your uploaded PDF form contained the following resource(s) from a different course:').' '.$othercrsmsg. |
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&mt('Did you download the PDF form from another course and upload it to the wrong course?'); |
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} |
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$result .= '</div>'; |
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} |
} |
} |
$result .= "\n</table>"; |
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return $result; |
return $result; |
} |
} |
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sub grade_problem { |
sub grade_problem { |
my %problem = @_; |
my %problem = @_; |
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my ($title, $part) = (); |
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my ($content) = &Apache::loncommon::ssi_with_retries('/res/'. |
&Apache::loncommon::ssi_with_retries('/res/'.$problem{'resource'}, 5, %problem); |
$problem{'resource'}, 5, %problem); |
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$content =~ s/.*class="LC_current_location".*>(.*)<\/td>.*/$1/g; |
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$content = $1; |
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my $part = $problem{submitted}; |
$title = &Apache::lonnet::gettitle($problem{'symb'}); |
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$part = $problem{submitted}; |
$part =~ s/part_(.*)/$1/; |
$part =~ s/part_(.*)/$1/; |
$content .= " - Part $part"; |
unless($part eq '0') { |
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#add information about part number |
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$title .= " - Part $part"; |
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} |
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my %problemhash = &Apache::lonnet::restore($problem{'symb'}); |
my %problemhash = &Apache::lonnet::restore($problem{'symb'}); |
my $grade = $problemhash{"resource.$part.award"}; |
my $grade = $problemhash{"resource.$part.award"}; |
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return ($content, $grade); |
return ($title, $grade); |
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} |
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sub parse_grade_answer { |
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my ($shortcut) = @_; |
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my %answerhash = ('EXACT_ANS' => &mt('You are correct.'), |
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'APPROX_ANS' => &mt('You are correct.'), |
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'INCORRECT' => &mt('You are incorrect'), |
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'DRAFT' => &mt('Copy saved but not submitted.'), |
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); |
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foreach my $key (keys(%answerhash)) { |
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if($shortcut eq $key) { |
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return $answerhash{$shortcut}; |
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} |
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} |
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return &mt('See course contents for further information.'); |
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} |
} |
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sub dumpenv { |
sub dumpenv { |
my $r = shift; |
my $r = shift; |
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$r->print ("<br />-------------------<br />"); |
$r->print ("<br />-------------------<br />"); |
foreach my $key (sort (keys %env)) { |
foreach my $key (sort(keys(%env))) { |
$r->print ("<br />$key -> $env{$key}"); |
$r->print ("<br />$key -> $env{$key}"); |
} |
} |
$r->print ("<br />-------------------<br />"); |
$r->print ("<br />-------------------<br />"); |
$r->print ("<br />-------------------<br />"); |
$r->print ("<br />-------------------<br />"); |
foreach my $key (sort (keys %ENV)) { |
foreach my $key (sort(keys(%ENV))) { |
$r->print ("<br />$key -> $ENV{$key}"); |
$r->print ("<br />$key -> $ENV{$key}"); |
} |
} |
$r->print ("<br />-------------------<br />"); |
$r->print ("<br />-------------------<br />"); |