' ); } Auth::require_authentication(); // Die if not logged in. $file = ABSPATH . pb_backupbuddy::_POST( 'file' ); if ( '' == $file ) { die( 'No file passed.' ); } if ( ! file_exists( $file ) ) { die( 'File not found.' ); } $fileHash = @md5_file( $file ); if ( false === $fileHash ) { die( 'Unable to calculate hash. Verify file permissions.' ); } else { die( json_encode( array( 'hash' => $fileHash ) ) ); }