On Mon, 2006-01-23 at 15:25 +0100, Benjamin Pasero wrote:
> 
> Oleg Kalnichevski wrote:
> > On Sun, 2006-01-22 at 13:09 +0100, Benjamin Pasero wrote:
> >   
> >> Hi,
> >>
> >> I am using HttpClient 3.0 and have a problem with preemptive 
> >> authentication and redirects.
> >>
> >> The scenario is as follows:
> >>
> >> 1. I create a GetMethod with a certain URI, lets say www.foo.com which 
> >> redirects to bar.foo.com
> >>    that requires authentication.
> >>
> >> 2. I lookup a registry with stored credentials for this URI and find 
> >> Username + Password
> >>
> >> 3. I call HttpClient.getParams().setAuthenticationPreemptive(true);
> >>
> >> 4. I create AuthScope and Credentials, asking the GetMethod for Host, 
> >> Port and Realm. For Host
> >>    I am getting "www.foo.com".
> >>
> >> 5. I call HttpClient.getState().setCredentials(authScope, userPwCreds);
> >>
> >> 6. I call getMethod.setDoAuthentication(true);
> >>
> >> Now, I execute the GetMethod and it gets redirected to "bar.foo.com". 
> >> Thereby the AuthScope
> >> I created preemptively with "www.foo.com" is no longer valid. I get an 
> >> 401 error, although
> >> the credentials are correct, just the host is not.
> >>
> >> Is there a workaround for avoiding this problem? I tried to supply 
> >> ANY_HOST as value for
> >> the AuthScope but get the exception that NULL is not allowed (though the 
> >> API tells me
> >> that I can supply ANY_HOST if I want to).
> >>
> >>     
> >
> > Try the following auth scope 
> > HttpClient.getState().setCredentials(AuthScope.ANY, userPwCreds);
> > if it does not help, post a complete wire/context log of the HTTP
> > session to this list.
> >   
> Thanks for the hint, that is working perfectly! Are there any side-effects
> in using such an authscope? E.g. could it be that some authentication
> challenges wont work with supplying ANY as scope?
> 

Ben,
You can always provide additional credentials with a more specific
scope. HttpClient will always pick up the best match.

Oleg 


> Regards,
> Ben
> > Oleg
> >
> >   
> >> Thanks for helping,
> >> Ben
> >>
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> >>
> >>     
> >
> >
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> >
> >   
> 
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