public void process(final HttpRequest request, final HttpContext context) throws HttpException, IOException { AuthState authState = (AuthState) context.getAttribute(ClientContext.TARGET_AUTH_STATE); if (authState.getAuthScheme() != null || authState.hasAuthOptions()) { return; } // If no authState has been established and this is a PUT or POST request, add preemptive // authorisation String requestMethod = request.getRequestLine().getMethod(); if (requestMethod.equals(HttpPut.METHOD_NAME) || requestMethod.equals(HttpPost.METHOD_NAME)) { CredentialsProvider credentialsProvider = (CredentialsProvider) context.getAttribute(ClientContext.CREDS_PROVIDER); HttpHost targetHost = (HttpHost) context.getAttribute(ExecutionContext.HTTP_TARGET_HOST); Credentials credentials = credentialsProvider.getCredentials( new AuthScope(targetHost.getHostName(), targetHost.getPort())); if (credentials == null) { throw new HttpException("No credentials for preemptive authentication"); } authState.update(authScheme, credentials); } }