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From "Harald Kirsch (Updated) (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (HTTPCLIENT-1129) Redirect and Kerberos authentication in conflict
Date Fri, 07 Oct 2011 13:29:29 GMT

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-1129?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Harald Kirsch updated HTTPCLIENT-1129:
--------------------------------------

    Attachment: customAuthScheme.log

Hi Oleg,

we tried the code below and it threw an exception as shown in the attachment.

Harald.



    DefaultHttpClient client = new DefaultHttpClient();
    
    UsernamePasswordCredentials creds = new UsernamePasswordCredentials("username", "password");
    client.getCredentialsProvider().setCredentials(new AuthScope(AuthScope.ANY_HOST, AuthScope.ANY_PORT,
AuthScope.ANY_REALM, AuthPolicy.SPNEGO), creds);
    
    AuthSchemeFactory asf = new AuthSchemeFactory() {

      public AuthScheme newInstance(HttpParams params) {
          return new NegotiateScheme() {

              @Override
              public boolean isConnectionBased() {
                  return false;
              }

          };
      }

  };
  client.getAuthSchemes().register(AuthPolicy.SPNEGO, asf); 
  
  HttpGet httphead = new HttpGet("http://moss-test/");
    
  HttpResponse response = client.execute(httphead); //throws an IllegalStateException (see
logs)


                
> Redirect and Kerberos authentication in conflict
> ------------------------------------------------
>
>                 Key: HTTPCLIENT-1129
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1129
>             Project: HttpComponents HttpClient
>          Issue Type: Wish
>          Components: HttpClient
>    Affects Versions: 4.1.2
>            Reporter: Harald Kirsch
>         Attachments: customAuthScheme.log, examples.txt, logFrom401Example.txt, this_also_works.log,
this_works.log, wiresharkFrom401.txt
>
>
> We are using the HttpClient to connect to a Website that uses Kerberos-Authentication.
> Beware this trigger word: Kerberos! I think this is *not* the problem, but please read
on.
> Here is the sequence of events:
> Client: GET /
> Server: Unauthorized.
> Client: GET / and includes authentication.
> Server: 302 to /something on the same host (this shows that in principle authentication
works)
> Client: GET /something,  does not include authentication
> Server: Unauthorized
> Client quits with 401-Unauthorized.
> I would have expected one of the following instead:
> 1) Client immediately sends authorization information with the redirected GET /something
> 2) Client re-requests the /something with authorization after 401-Unauthorized.
> We could get around the problem by setting the ConnectionReuseStrategy to a constant
false.
> It would be great if someone could tell me if HttpClient works as expected or whether
there is a bug or misconfiguration lurking.
> Thanks,
> Harald.

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