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From "Francois Rigault (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HTTPCLIENT-936) NullPointerException in NegotiateScheme
Date Mon, 10 May 2010 09:08:49 GMT

     [ https://issues.apache.org/jira/browse/HTTPCLIENT-936?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Francois Rigault updated HTTPCLIENT-936:
----------------------------------------


Hi

I have an infinite loop now.

start:
The client sends its token to the server ,
Server replies with a  WWW-Authenticate:  Negotiate sometoken
Client gets a new token from the kdc
It also gets a new token from the kdc for accessing the krbtgt, don't know why
goto start

> NullPointerException in NegotiateScheme
> ---------------------------------------
>
>                 Key: HTTPCLIENT-936
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-936
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpAuth
>    Affects Versions: 4.1 Alpha1
>         Environment: JDK1.6
>            Reporter: Francois Rigault
>             Fix For: 4.1 Alpha2
>
>         Attachments: HTTPCLIENT-936.patch
>
>
> - server is configured to allow client to authenticate with kerberos with principal foobar
> - client, using httpclient with a registered authscheme SPNEGO set as a NegotiateSchemeFactory
> - when the client authenticate with the (correct) principal foobar, it works !
> - when the client authenticate with the (wrong) principal fooba, it fails with a NPE
below.
> Exception in thread "main" java.lang.NullPointerException
> 	at org.apache.commons.codec.binary.Base64.encodeBase64(Base64.java:233)
> 	at org.apache.commons.codec.binary.Base64.encode(Base64.java:521)
> 	at org.apache.http.impl.auth.NegotiateScheme.authenticate(NegotiateScheme.java:240)
> 	at org.apache.http.client.protocol.RequestTargetAuthentication.process(RequestTargetAuthentication.java:99)
> 	at org.apache.http.protocol.ImmutableHttpProcessor.process(ImmutableHttpProcessor.java:108)
> 	at org.apache.http.protocol.HttpRequestExecutor.preProcess(HttpRequestExecutor.java:167)
> 	at org.apache.http.impl.client.DefaultRequestDirector.execute(DefaultRequestDirector.java:460)
> 	at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:689)
> 	at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:624)
> 	at org.apache.http.impl.client.AbstractHttpClient.execute(AbstractHttpClient.java:602)

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