Add Additional HTTP Header fields to Bro http logs

additional_http_headers-main.bro

module HTTP;

# Add additional HTTP Headers
redef record Info += {
  #Origin "Origin"
  origin:       string  &log &optional;
};


event http_header(c: connection, is_orig: bool, name: string, value: string) &priority=5
{
  if ( is_orig ) # client headers
    {
      if ( name == "ORIGIN" )
          c$http$origin = value;
    }
}