def requestAvatarId(self, c):
creds = credentials.IUsernamePassword(c, None)
if creds is not None:
conn = SwiftConnection(self.auth_url, creds.username, creds.password, pool=self.pool, verbose=self.verbose)
conn.user_agent = USER_AGENT
d = conn.authenticate()
d.addCallback(self._after_auth, conn)
d.addErrback(failed_auth)
return d
return defer.fail(error.UnauthorizedLogin())
