checking wpcom file exist

includes/class-wp-push-syndication-server.php

@@ -1091,7 +1091,8 @@ class WP_Push_Syndication_Server {
         if( $delete_pushed_posts != 'on' )
             return;
 
-        // @TODO add cap check
+        if( !$this->current_user_can_syndicate() )
+            return;
 
         wp_schedule_single_event(
             time() - 1,

push-syndication.php

@@ -13,7 +13,8 @@ License:      GPLv2 or later
 **************************************************************************/
 
 require_once ( dirname( __FILE__ ) . '/includes/class-wp-push-syndication-server.php' );
-require_once ( dirname( __FILE__ ) . '/includes/class-wpcom-push-syndication-server.php' );
+if( file_exists( dirname( __FILE__ ) . '/includes/class-wpcom-push-syndication-server.php' ) );
+    require_once ( dirname( __FILE__ ) . '/includes/class-wpcom-push-syndication-server.php' );
 
 if ( !defined( 'PUSH_SYNDICATION_ENVIRONMENT' ) )
     define( 'PUSH_SYNDICATION_ENVIRONMENT', 'WP' );