HttpClient 4.5 - make NTLM highest precedence authenticator when using HttpClientBuilder

[Chris Mugdan <ch...@integeo.com>]

Hi,

I am using HttpClientBuilder to create an HttpClient with NTLM 
authentication, but looking at the logs it tries SPNEGO first then NTLM. 
Since I am only interested in NTLM, to increase the efficiency of 
requests I want it to be the first authenticator tried. How do I do this 
when I am using the following code to set up the HttpClient?

{

.......

       HttpClientBuilder clientBuilder = HttpClients.custom()
             .useSystemProperties()
             .setUserAgent("Mozilla/5.0");

       // authentication/credentials...

       if (credsProvider == null)
       {
          credsProvider = new BasicCredentialsProvider();
          final NTCredentials credentials =
                new NTCredentials(username, password, workstation, domain);
          credsProvider.setCredentials(AuthScope.ANY, credentials);
       }

       clientBuilder = 
clientBuilder.setDefaultCredentialsProvider(credsProvider);

       return Executor.newInstance(clientBuilder.build());
}

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Untitled Document

*Christopher Mugdan *
Senior Software Developer
Phone: +61 (0)2 9045 3391
Mobile: +61 (0)412 398 104
Email: chrism@integeo.com <mailto:chrism@integeo.com%20>
Skype: chrismugdan
www.integeo.com <https://www.integeo.com>

Re: HttpClient 4.5 - make NTLM highest precedence authenticator when using HttpClientBuilder

[Oleg Kalnichevski <ol...@apache.org>]

On Sat, 2019-01-19 at 11:29 +1100, Chris Mugdan wrote:
> Hi,
> 
> I am using HttpClientBuilder to create an HttpClient with NTLM 
> authentication, but looking at the logs it tries SPNEGO first then
> NTLM. 
> Since I am only interested in NTLM, to increase the efficiency of 
> requests I want it to be the first authenticator tried. How do I do
> this 
> when I am using the following code to set up the HttpClient?
> 

See `targetPreferredAuthSchemes` and `proxyPreferredAuthSchemes`
attributes of the `RequestConfig` class.

Oleg



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