version 1.1, 2008/09/09 13:56:44
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version 1.15, 2010/03/18 13:16:11
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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(); |
use Apache::lonlocal; |
use Apache::lonlocal; |
use Apache::lonmsg(); |
use CAM::PDF; |
use Apache::lonhomework; |
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use LONCAPA::Enrollment; |
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use LONCAPA::Configuration; |
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use strict; |
use strict; |
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sub handler() { |
sub handler() { |
my $r = shift; |
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#Testen ob der Benutzer ein gültiges Cookie besitzt |
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if(!&checkpermission($r)) { |
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return OK; |
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} |
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$Apache::lonxml::request=$r; |
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$Apache::lonxml::debug=$env{'user.debug'}; |
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$env{'request.uri'}=$r->uri; |
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$r->content_type('text/html'); |
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$r->send_http_header(); |
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$r->print(&Apache::loncommon::start_page('Upload-PDF-Form')); |
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#lade die per POST gesendenten daten in env |
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&Apache::lonacc::get_posted_cgi($r); |
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if($env{'form.Uploaded'} && $env{'form.file'}) { |
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#Upload-Formular wurde gesendet |
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$r->print(&processPDF); |
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} else { |
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#erster Aufruf Upload-Formular wird ausgeben |
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$r->print(&get_javascripts); |
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$r->print(&get_uploadform); |
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} |
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#&dumpenv($r); #debug -> prints the environment |
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$r->print("<br /><a href='/adm/navmaps'>".&mt("Navigate Contents")."</a><br />"); |
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$r->print(" </body>\n</html>\n"); |
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return OK; |
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} |
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sub checkpermission() { |
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my $r = shift; |
my $r = shift; |
if (! &LONCAPA::loncgi::check_cookie_and_load_env()) { |
&Apache::loncommon::content_type($r,'text/html'); |
my $result = <<END |
$r->send_http_header; |
Content-type: text/html |
return OK if $r->header_only; |
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<html> |
# Breadcrumbs |
<head><title>Bad Cookie</title></head> |
my $brcrum = [{'href' => '/adm/pdfupload', |
<body> |
'text' => 'Upload PDF Form'}]; |
Your cookie information is incorrect. |
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</body> |
$r->print(&Apache::loncommon::start_page('Upload PDF Form', |
</html> |
undef, |
END |
{'bread_crumbs' => $brcrum,}) |
; |
); |
$r->print($result); |
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return 0; |
# if a file was upload |
} else { |
if($env{'form.Uploaded'} && $env{'form.file'}) { |
return 1; |
$r->print(&processPDF); |
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} else { |
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# print upload form |
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$r->print(&get_javascripts); |
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$r->print(&get_uploadform); |
} |
} |
} |
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#link to course-content |
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$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($r); #debug -> prints the environment |
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$r->print(&Apache::loncommon::end_page()); |
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return OK; |
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} |
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sub get_javascripts() { |
sub get_javascripts() { |
my $result = ' <script type="text/javascript">'; |
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my $message = &mt('Please choose a PDF-File.'); |
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# JavaScript prüft die Datei Endung der hochzuladenden Datei |
# simple test if the upload ends with ".pdf" |
$result .= <<END |
# it's only for giving a message to the user |
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my $result .= <<END |
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<script type="text/javascript"> |
function checkFilename(form) { |
function checkFilename(form) { |
var fileExt = form.file.value; |
var fileExt = form.file.value; |
fileExt = fileExt.match(/[.]pdf\$/g); |
fileExt = fileExt.match(/[.]pdf\$/g); |
if(fileExt) { |
if(fileExt) { |
return true; |
return true; |
} |
} |
alert("Bitte geben Sie nur ein PDF an.") |
alert("$message"); |
return false; |
return false; |
} |
} |
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</script> |
END |
END |
; |
; |
$result .= " </script>"; |
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return $result; |
return $result; |
} |
} |
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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 $result = |
<td> |
'<br />' |
<table cellspacing="1" cellpadding="2" border="0" width="100%"> |
.'<form method="post" enctype="multipart/form-data" onsubmit="return checkFilename(this);">' |
<tr> |
.'<input type="hidden" name="type" value="upload" />' |
<td colspan="2" bgcolor="#99EEEE"> |
.&Apache::lonhtmlcommon::start_pick_box() |
<b>PDF-Formular einsenden</b> |
.&Apache::lonhtmlcommon::row_headline() |
</td> |
.'<h2>'.$lt{'title'}.'</h2>' |
</tr> |
.&Apache::lonhtmlcommon::row_closure() |
<tr> |
.&Apache::lonhtmlcommon::row_title($lt{'chFile'}) |
<td bgcolor="#F8F8F8"> |
.'<input type="file" name="file" id="filename" />' |
Datei auswählen |
.&Apache::lonhtmlcommon::row_closure(1) |
</td> |
.&Apache::lonhtmlcommon::end_pick_box() |
<td bgcolor="#F8F8F8"> |
.'<p>' |
<input type="file" name="file" id="filename"> |
.'<input type="submit" name="Uploaded" value="'.$lt{'submit'}.'" />' |
</td> |
.'</p>' |
</tr> |
.'</form>' |
<tr> |
.'<br />'; |
<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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sub processPDF { |
sub processPDF { |
my $result = (); |
my $result = (); # message for Browser |
my @pdfdata = (); |
my @pdfdata = (); # answers from PDF-Forms |
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@pdfdata = &get_pdf_data; |
@pdfdata = &get_pdf_data(); # get answers from PDF-Form |
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if (scalar @pdfdata) { |
if (scalar @pdfdata) { |
$result .= &grade_pdf(@pdfdata); |
&grade_pdf(@pdfdata); |
} else { |
} else { |
$result .= "<h2>".&mt("reading PDF-formfields: failed")."</h2>"; |
$result .= '<p class="LC_error">' |
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.&mt("Can't find any valid PDF formfields.") |
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.'</p>'; |
} |
} |
} |
} |
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sub get_pdf_data() { |
sub get_pdf_data() { |
my @data = (); |
my @data = (); |
my $file_path = "/home/httpd/pdfspool/".time."_". |
my $pdf = CAM::PDF->new($env{'form.file'}); |
int(rand(100000)).".pdf"; |
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my $file_data = $file_path; |
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$file_data =~ s/(.*)\..*/$1.data/; |
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# zwischenspeichern der hochgeladenen PDF |
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my $temp_file = Apache::File->new('>'.$file_path); |
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binmode($temp_file); |
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print $temp_file $env{'form.file'}; |
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$temp_file->close; |
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#Java PDF-Auslese-Programm starten |
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my @command = ("java", "-jar", |
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"/home/httpd/pdfspool/dumpPDF.jar", |
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$file_path, $file_data); |
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system(@command); |
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#Einlesen der extrahierten Daten |
my @formFields = $pdf->getFormFieldList(); #get names of formfields |
$temp_file = new IO::File->new('<'.$file_data); |
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while (defined (my $line = $temp_file->getline())) { |
foreach my $field (@formFields) { |
push(@data, $line); |
my $dict = $pdf->getFormFieldDict($pdf->getFormField($field)); # get formfield dictonary |
} |
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$temp_file->close; |
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undef($temp_file); |
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#zwischengespeicherte Dateien loeschen |
# |
if( -e $file_path) { |
# this is necessary because CAM::PDF has a problem with formfieldnames which include a |
# unlink($file_path); |
# dot in fieldnames. So a fieldname like "i.am.aFormfield" will offer three fieldnames "i", "i.am" |
} |
# and "i.am.aFormfield". The fragmentary names keep no values and will be ignored. |
if( -e $file_data) { |
if($dict->{'V'}) { |
# unlink($file_data); |
push(@data, $field."?". $dict->{'V'}{'value'}); #binding fieldname with value |
} |
} |
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} |
return @data; |
return @data; |
} |
} |
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Line 229 sub grade_pdf {
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Line 174 sub grade_pdf {
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my $debug = (); |
my $debug = (); |
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$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; |
$debug .= 'found: metadata -> '.$entry . "<br />"; |
my ($label, $value) = split('\?', $entry); |
my ($label, $value) = ($entry =~ /^([^?]*)\?(.*)/); |
my ($domain, $user) = split('&', $value); |
my ($domain, $user) = split('&', $value); |
$user =~ s/(.*)\n/$1/; |
$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) = split('\?', $entry); |
my ($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); |
$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' && $value eq 'Off' ) { |
next; |
next; |
} |
} |
Line 268 sub grade_pdf {
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Line 217 sub grade_pdf {
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$debug .= 'found: -> '.$entry; |
$debug .= 'found: -> '.$entry; |
next; |
next; |
} |
} |
#$result = $debug; |
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} |
} |
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#$result .= $debug; |
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$result .= '<h2>'.&mt('Results of PDF Form problems').'</h2>'; |
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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)) { |
foreach my $key (sort (keys %problems)) { |
my %problem = %{$problems{$key}}; |
my %problem = %{$problems{$key}}; |
my ($problemname, $grade) = &grade_problem(%problem); |
my ($problemname, $grade) = &grade_problem(%problem); |
$result .= "<tr style='background-color: #EEF5F5;'><td>$problemname</td><td style='background-color: "; |
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if($grade eq "EXACT_ANS") { |
$result .= &Apache::loncommon::start_data_table_row(); |
$result .= "#DDFFDD"; |
$result .= "<td>$problemname</td><td class='"; |
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if($grade eq "EXACT_ANS" || $grade eq "APPROX_ANS") { |
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$result .= "LC_answer_correct"; |
} else { |
} else { |
$result .= "#DD5555"; |
$result .= "LC_answer_charged_try"; |
} |
} |
$result .= "'>$grade</td></tr>"; |
$grade = &parse_grade_answer($grade); |
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$result .= "'>$grade</span></td>"; |
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$result .= &Apache::loncommon::end_data_table_row(); |
} |
} |
$result .= "\n</table>"; |
$result .= &Apache::loncommon::end_data_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; |
$title = &Apache::lonnet::gettitle($problem{'symb'}); |
$content = $1; |
$part = $problem{submitted}; |
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my $part = $problem{submitted}; |
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$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, $grade); |
} |
} |
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sub parse_grade_answer { |
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my ($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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); |
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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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