--- loncom/homework/essayresponse.pm	2003/01/13 21:24:02	1.16
+++ loncom/homework/essayresponse.pm	2003/01/24 18:45:23	1.21
@@ -1,7 +1,7 @@
 # The LearningOnline Network with CAPA
 # essay (ungraded) style responses
 #
-# $Id: essayresponse.pm,v 1.16 2003/01/13 21:24:02 sakharuk Exp $
+# $Id: essayresponse.pm,v 1.21 2003/01/24 18:45:23 www Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -31,6 +31,7 @@
 package Apache::essayresponse;
 use strict;
 use Apache::lonxml;
+use Apache::lonnet;
 
 BEGIN {
     &Apache::lonxml::register('Apache::essayresponse',('essayresponse'));
@@ -47,6 +48,9 @@ sub start_essayresponse {
 
 	my $ncol= &Apache::lonnet::EXT("resource.$part".'_'."$id.maxcollaborators");
 	my $coll= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.collaborators"});
+	my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
+        $uploadedfiletypes=~s/[^\w\,]//g;
+	my $uploadedfile= &HTML::Entities::encode($Apache::lonhomework::history{"resource.$part.$id.uploadedfile"});
 	$result='<br /><table border="1">';
 	if ($ncol > 0) {
 	    $result .='<tr><td>'.
@@ -57,6 +61,19 @@ sub start_essayresponse {
 	    $result .= &check_collaborators($ncol,$coll) if ($coll =~ /\w+/);
 	    $result .='</td></tr>';
 	}
+        if ($uploadedfiletypes) {
+           $result.=
+'<tr><td>Submit a file: <input type="file" size="50" name="HWFILE'.
+		$part.'_'.$id.'" onFocus="this.form.enctype='.
+"'multipart/form-data'".';" /><br />Allowed filetypes: <b>'.$uploadedfiletypes.'</b><br />';
+           if ($uploadedfile) {
+	       $result.='Currently submitted: <tt><a href="'.
+                &Apache::lonnet::tokenwrapper($Apache::lonhomework::history{"resource.$part.$id.uploadedurl"}).'">'.$uploadedfile.'</a></tt>';
+           } else {
+              $result.='(Hand in a file you have prepared on your computer)';
+           }
+           $result.='</td></tr>'; 
+        }
 	$result.='<tr><td>'.
 	    '<input type="radio" name="HWDRAFT'.$part.'_'.$id.'" value="yes" checked>'.
 	    ' Submit text below as answer to receive credit <br />'.
@@ -79,6 +96,18 @@ sub end_essayresponse {
 	    $Apache::lonhomework::results{"resource.$part.$id.collaborators"}=$collaborators
 		if ($collaborators ne $previous_list);
 	}
+        my $filename= $ENV{'form.HWFILE'.$part.'_'.$id.'.filename'};
+        if ($filename =~ /[^\s]/) {
+  	  my $uploadedfiletypes= &Apache::lonnet::EXT("resource.$part".'_'."$id.uploadedfiletypes");
+          $uploadedfiletypes=~s/[^\w\,]//g;
+          $uploadedfiletypes=','.$uploadedfiletypes.',';
+          my ($extension)=($filename=~/\.(\w+)$/);
+	   if ($uploadedfiletypes=~/\,$extension\,/i) {
+	    $Apache::lonhomework::results{"resource.$part.$id.uploadedfile"}=$filename;
+            $Apache::lonhomework::results{"resource.$part.$id.uploadedurl"}=
+              &Apache::lonnet::userfileupload('HWFILE'.$part.'_'.$id);
+	   }
+        }
 	if ( defined $ENV{'form.submitted'}) {
 	    my $response      = $ENV{'form.HWVAL'.$id};
 	    if ( $response =~ /[^\s]/) {
@@ -100,7 +129,7 @@ sub end_essayresponse {
 	if ($Apache::lonhomework::type eq 'exam') {
 	    $result.='\begin{enumerate}\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Live blank on scoring form}\vskip 0 mm';
 	    &Apache::lonxml::increment_counter();
-	    $result.= '\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Live blank on scoring form}\vskip 0 mm \end{enumerate}';
+	    $result.= '\item[\textbf{'.$Apache::lonxml::counter.'}.]\textit{Leave blank on scoring form}\vskip 0 mm \end{enumerate}';
 	    &Apache::lonxml::increment_counter();
 	}
     }