* @see org.apache.jetspeed.sso.SSOProvider#useSSO(java.lang.String, java.lang.String, java.lang.String)
*/
public String useSSO(Subject subject, String url, String SSOSite, boolean bRefresh) throws SSOException
{
// Get the principal from the subject
BasePrincipal principal = (BasePrincipal)SecurityHelper.getBestPrincipal(subject, UserPrincipal.class);
String fullPath = principal.getFullPath();
String content = null;
/* ProxyID is used for the cache. The http client object will be cached for a
* given user site url combination