Jetty HttpClient proxy authentication configuration (NTLM)

Asked Nov 17 '20 at 12:50

Active May 06 '21 at 12:41

Viewed 657 times

We built a Java client application connecting to an API behind a proxy that demands NTLM authentication. The application uses a Jetty HttpClient.

Unfortunately the authentication fails with a 407

Response headers HttpResponse[HTTP/1.1 407 Proxy Authorization Required]@3577846e
Proxy-Authenticate: Negotiate
Proxy-Authenticate: NTLM

We tried to authenticate using the SPNEGOAuthentication-class

AuthenticationStore authStore = httpClient.getAuthenticationStore();
SPNEGOAuthentication auth = new SPNEGOAuthentication(proxyUrl);
auth.setUserName(user);
auth.setUserPassword(password);
authStore.addAuthentication(auth);

ProxyConfiguration proxyConfig = httpClient.getProxyConfiguration();

HttpProxy proxy = new HttpProxy(proxyUrl.getHost(), proxyUrl.getPort());
proxyConfig.getProxies().add(proxy);

But without success (407). We also tried overwriting the DefaultAuthenticator.

Any hints what we probably did wrong or other suggestions?

Regards and thanks in advance, Thomas

edited May 06 '21 at 12:41

Stephen C

698,415
94
811
1,216

asked Nov 17 '20 at 12:50

thomas

1

Is your `user` variable following the format of `@` ? – Joakim Erdfelt Nov 17 '20 at 19:00
Actually we just used . Is a realm required in NTLM authentication? – thomas Nov 18 '20 at 08:38
That I cannot answer, the realm requirement is site specific. Most sites I've personally come across require it. But yours might be different. – Joakim Erdfelt Nov 18 '20 at 14:34

Jetty HttpClient proxy authentication configuration (NTLM)

0 Answers0