4 files changed, 12 insertions, 4 deletions
diff --git a/program/steps/mail/func.inc b/program/steps/mail/func.inc
index 6f451e14f..8bf80a6ee 100644
--- a/program/steps/mail/func.inc
+++ b/program/steps/mail/func.inc
@@ -90,11 +90,13 @@ if (empty($RCMAIL->action) || $RCMAIL->action == 'list') {
   // set current mailbox and some other vars in client environment
   $OUTPUT->set_env('mailbox', $mbox_name);
   $OUTPUT->set_env('pagesize', $RCMAIL->storage->get_pagesize());
-  $OUTPUT->set_env('quota', $RCMAIL->storage->get_capability('QUOTA'));
   $OUTPUT->set_env('delimiter', $RCMAIL->storage->get_hierarchy_delimiter());
   $OUTPUT->set_env('threading', $threading);
   $OUTPUT->set_env('threads', $threading || $RCMAIL->storage->get_capability('THREAD'));
   $OUTPUT->set_env('preview_pane_mark_read', $RCMAIL->config->get('preview_pane_mark_read', 0));
+  if ($RCMAIL->storage->get_capability('QUOTA')) {
+    $OUTPUT->set_env('quota', true);
+  }
 
   if ($CONFIG['delete_junk'])
     $OUTPUT->set_env('delete_junk', true);
diff --git a/program/steps/mail/headers.inc b/program/steps/mail/headers.inc
index 4d6627393..cad113f68 100644
--- a/program/steps/mail/headers.inc
+++ b/program/steps/mail/headers.inc
@@ -24,7 +24,8 @@ if ($uid = get_input_value('_uid', RCUBE_INPUT_POST))
     $source = $RCMAIL->storage->get_raw_headers($uid);
 
     if ($source !== false) {
-        $source = htmlspecialchars(trim($source));
+        $source = trim(rcube_charset::clean($source));
+        $source = htmlspecialchars($source);
         $source = preg_replace(
             array(
                 '/\n[\t\s]+/',
diff --git a/program/steps/settings/folders.inc b/program/steps/settings/folders.inc
index 2c2cbdcc2..6ca704998 100644
--- a/program/steps/settings/folders.inc
+++ b/program/steps/settings/folders.inc
@@ -411,8 +411,10 @@ function rcmail_rename_folder($oldname, $newname)
 
 $OUTPUT->set_pagetitle(rcube_label('folders'));
 $OUTPUT->include_script('list.js');
-$OUTPUT->set_env('quota', $STORAGE->get_capability('QUOTA'));
 $OUTPUT->set_env('prefix_ns', $STORAGE->get_namespace('prefix'));
+if ($STORAGE->get_capability('QUOTA')) {
+    $OUTPUT->set_env('quota', true);
+}
 
 // add some labels to client
 $OUTPUT->add_label('deletefolderconfirm', 'purgefolderconfirm', 'folderdeleting',
diff --git a/program/steps/settings/save_folder.inc b/program/steps/settings/save_folder.inc
index 09f76ac27..73cc5e4bf 100644
--- a/program/steps/settings/save_folder.inc
+++ b/program/steps/settings/save_folder.inc
@@ -80,7 +80,10 @@ if (!$error && strlen($path) && (!strlen($old_imap) || $old_imap != $name_imap))
     }
 }
 
-if (!$error) {
+if ($error) {
+    $OUTPUT->command('display_message', $error, 'error');
+}
+else {
     $folder['name']     = $name_imap;
     $folder['oldname']  = $old_imap;
     $folder['class']    = '';