--- loncom/interface/lonfeedback.pm	2017/11/03 21:36:27	1.374
+++ loncom/interface/lonfeedback.pm	2017/12/18 22:36:52	1.377
@@ -1,7 +1,7 @@
 # The LearningOnline Network
 # Feedback
 #
-# $Id: lonfeedback.pm,v 1.374 2017/11/03 21:36:27 raeburn Exp $
+# $Id: lonfeedback.pm,v 1.377 2017/12/18 22:36:52 raeburn Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -44,7 +44,7 @@ use HTML::LCParser();
 #use HTML::Tidy::libXML;
 use Apache::lonspeller();
 use Apache::longroup;
-use Cwd;
+use Archive::Zip qw( :ERROR_CODES );
 use LONCAPA qw(:DEFAULT :match);
 
 sub discussion_open {
@@ -674,7 +674,7 @@ END
                                              $newpostsflag,$group,
                                              $prevread,$markondisp,$seehidden);
             $discussion .= "</table></form>\n";
-        } 
+        }
         if ($outputtarget eq 'export') {
             if ($manifestok) {
                 while ($currdepth > 0) {
@@ -698,18 +698,19 @@ END
 
                     if (($env{'user.name'} =~ /^$match_username$/)
                         && ($env{'user.domain'} =~ /^$match_domain$/)) {
-                        my $now = time(); 
+                        my $now = time();
                         my $imszipfile = '/prtspool/'.
                                       join('_',$env{'user.name'},$env{'user.domain'},$now).
                                       '_'.rand(1000000000).'.zip';
-                        my $cwd = &getcwd(); 
+                        my $zip = Archive::Zip->new();
+                        $zip->addTree($tempexport);
                         my $imszip = '/home/httpd/'.$imszipfile;
-                        chdir $tempexport;
-                        open(OUTPUT, "zip -r $imszip *  2> /dev/null |");
-                        close(OUTPUT);
-                        chdir $cwd;
-                        $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive[_2]',
+                        if ($zip->writeToFileNamed($imszip) == AZ_OK) {
+                            $discussion .= &mt('Download the zip file from [_1]Discussion Posting Archive[_2]',
                                            '<a href="'.$imszipfile.'">','</a>').'<br />';
+                        } else {
+                            $discussion .=  &mt('Failed to create zip file').'<br />';
+                        }
                         if ($copyresult) {
                             $discussion .= '<span class="LC_error">'.
                                            &mt('The following errors occurred during export:').
@@ -854,7 +855,7 @@ sub send_feedback_link {
                  &discussion_link($ressymb,
                     '<img alt="" class="LC_noBorder" src="'.
                     &Apache::loncommon::lonhttpdurl('/adm/lonMisc/chat.gif').
-                    '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
+                    '" /><span class="LC_menubuttons_inline_text">'.&mt('Post Discussion').'</span>',
                     'replydisc').
            '</span>';
 }
@@ -865,7 +866,7 @@ sub send_message_link {
                  &discussion_link($ressymb,
                     '<img alt="" class="LC_noBorder" src="'.
                     &Apache::loncommon::lonhttpdurl('/res/adm/pages/feedback.png').
-                    '" border="0" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
+                    '" /><span class="LC_menubuttons_inline_text">'.&mt('Send Feedback').'</span>',
                     'sendmessageonly').
                  '</span>';
     return $output;