--- loncom/interface/londocs.pm	2013/05/25 21:56:23	1.551
+++ loncom/interface/londocs.pm	2013/07/09 00:17:22	1.552
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Documents
 #
-# $Id: londocs.pm,v 1.551 2013/05/25 21:56:23 raeburn Exp $
+# $Id: londocs.pm,v 1.552 2013/07/09 00:17:22 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -2802,8 +2802,30 @@ sub multiple_check_form {
 }
 
 sub process_file_upload {
-    my ($upload_output,$coursenum,$coursedom,$allfiles,$codebase,$uploadcmd) = @_;
+    my ($upload_output,$coursenum,$coursedom,$allfiles,$codebase,$uploadcmd,$crstype) = @_;
 # upload a file, if present
+    my $filesize = length($env{'form.uploaddoc'});
+    if (!$filesize) {
+        $$upload_output = '<div class="LC_error">'.
+                           &mt('Unable to upload [_1]. (size = [_2] bytes)',
+                          '<span class="LC_filename">'.$env{'form.uploaddoc.filename'}.'</span>',
+                          $filesize).'<br />'.
+                          &mt('Either the file you attempted to upload was empty, or your web browser was unable to read its contents.').'<br />'.
+                          '</div>';
+        return;
+    }
+    my $quotatype = 'unofficial';
+    if ($crstype eq 'Community') {
+        $quotatype = 'community';    
+    } elsif ($env{'course.'.$coursedom.'_'.$coursenum.'.internal.instcode'}) {
+        $quotatype = 'official';
+    }
+    if (&Apache::loncommon::get_user_quota($coursenum,$coursedom,'course',$quotatype)) {
+        $filesize = int($filesize/1000); #expressed in kb
+        $$upload_output = &Apache::loncommon::excess_filesize_warning($coursenum,$coursedom,'course',
+                                                                      $env{'form.uploaddoc.filename'},$filesize,'upload');
+        return if ($$upload_output);
+    }
     my ($parseaction,$showupload,$nextphase,$mimetype);
     if ($env{'form.parserflag'}) {
         $parseaction = 'parse';
@@ -4358,7 +4380,7 @@ sub handler {
           # Process file upload - phase one - upload and parse primary file.
 	  undef($hadchanges);
           $uploadphase = &process_file_upload(\$upload_output,$coursenum,$coursedom,
-                                              \%allfiles,\%codebase,$context);
+                                              \%allfiles,\%codebase,$context,$crstype);
 	  if ($hadchanges) {
 	      &mark_hash_old();
 	  }