Basic Authentication with Resteasy client

Question

I\'m trying to perform an basic auth to the login-module which runs on my jboss using REST. I already found an StackOverflow topic which explains how to authenticate with creden

Answer 1

Consider the solution from Adam Bien:

You can attach an ClientRequestFilter to the RESTEasy Client, which adds the Authorization header to the request:

public class Authenticator implements ClientRequestFilter {

    private final String user;
    private final String password;

    public Authenticator(String user, String password) {
        this.user = user;
        this.password = password;
    }

    public void filter(ClientRequestContext requestContext) throws IOException {
        MultivaluedMap headers = requestContext.getHeaders();
        final String basicAuthentication = getBasicAuthentication();
        headers.add("Authorization", basicAuthentication);

    }

    private String getBasicAuthentication() {
        String token = this.user + ":" + this.password;
        try {
            return "Basic " +
                 DatatypeConverter.printBase64Binary(token.getBytes("UTF-8"));
        } catch (UnsupportedEncodingException ex) {
            throw new IllegalStateException("Cannot encode with UTF-8", ex);
        }
    }
}

Client client = ClientBuilder.newClient()
                     .register(new Authenticator(user, password));