Want to send information in Header dynamically using HTTP adapter using post method

Hi ,

I have a requirement to send below information in http Adapter header dynamically using post method. which will be authenticated by third party system.

Authorization : WSSE realm="SDP", profile="UsernameToken", type="AppKey" X-WSSE : UsernameToken Username="XXXX", PasswordDigest="Qd0QnQn0eaAHpOiuk/0QhV+Bzdc=", Nonce="eUZZZXpSczFycXJCNVhCWU1mS3ZScldOYg==", Created="2013-09-05T02:12:21Z"

I have followed below link to create UDF

http://scn.sap.com/thread/3241568

As if now my third party system is not available while sending request I am getting 504 gateway error. is there any approach I can validate my request is working fine?

Regards,