Example: Getting the Caller Subject from the Thread

Example: Getting the caller subject from the thread

The Caller subject (or "received subject") contains the user authentication information that is used in the call for this request. This subject is returned after issuing the WSSubject.getCallerSubject application programming interface (API) to prevent replacing existing objects. The subject is marked read-only. This API can be used to get access to the WSCredential credential so that you can put or set data in the hashmap within the credential. Most data within the subject is not propagated downstream to another server. Only the credential token within the WSCredential is propagated downstream and a new caller subject is generated.

try
{
javax.security.auth.Subject caller_subject;
com.ibm.websphere.security.cred.WSCredential caller_cred;

caller_subject = com.ibm.websphere.security.auth.WSSubject.getCallerSubject();

if (caller_subject != null)
{
caller_cred = caller_subject.getPublicCredentials
(com.ibm.websphere.security.cred.WSCredential.class).iterator().next();
String CALLERDATA = (String) caller_cred.get ("MYKEY");
System.out.println("My data from the Caller credential is: " + CALLERDATA);
}
}
catch (WSSecurityException e)
{
// log error
}
catch (Exception e)
{
// log error
}

Requirement: You need the following Java 2 security permissions to run this API: permission javax.security.auth.AuthPermission "wssecurity.getCallerSubject;".

Searchable topic ID: rsec_getcaller