Source Reference:

• Component: bbPress :: bbp-user

  File: /bbp-includes/bbp-user-functions.php :: Trac Source Line: 162

   */
  function bbp_current_author_ua() {
  
  	// Sanity check the user agent
  	if ( !empty( $_SERVER['HTTP_USER_AGENT'] ) )
  		$retval = substr( $_SERVER['HTTP_USER_AGENT'], 0, 254 );
  	else
  		$retval = '';
  
  	return apply_filters( 'bbp_current_author_ua', $retval );
  }
  
  /** Favorites *****************************************************************/
  
  /**
   * Get the users who have made the topic favorite
   *
   * @since bbPress (r2658)
   *
   * @param int $topic_id Optional. Topic id