Hello Alex,
HttpClient can send the authentication data automatically.
Use HttpMethod.setDoAuthentication(true) to tell it to.
You may want to set the credentials for the particular host
and port of the proxy, rather than as default credentials.
This will prevent them from being sent to the wrong host.
cheers,
Roland
Alex Hunsley <[EMAIL PROTECTED]>
27.05.2004 12:27
Please respond to "Commons HttpClient Project"
To: [EMAIL PROTECTED]
cc:
Subject: does HttpClient transparently send proxy auth
after getting HTTP 403 code?
I hope this is an approriate list for this question, if not, please
accept my apologies!
I'm running HttpClient 2.0 with j2sdk1.4.2_03.
I'm using HttpClient to access web pages via an http proxy server that
needs basic proxy authorization (note: it's the *proxy* that needs auth,
not the end-target web server. I add this because I have got confused
myself sometimes over this!) I'm debugging my HttpClient-using code by
pointing it at a local proxy (I'm running 'Charles') and from this I can
see that my request is *not* providing proxy authorization information.
If, however, I call:
httpClient.getState().setAuthenticationPreemptive(true);
to enable pre-emptive authorization, my test proxy does receive the
authorization. I had no idea that the preeptive authorization also
applies to the proxy authorization as the docs don't make this clear
(and if this is indeed the case, a clarification in the docs might be
handy).
My main question is: if I don't call setAuthenticationPreemptive(true),
and if HttpClient tries to use a proxy and receives an HTTP 403 (proxy
auth required) message back, will it transparently then give the proxy
auth that I have set, or will it just give me the 403 code it received?
As far as I can see, it is just giving me the 403 code back, so I don't
understand why it doesn't just always give the proxy auth up front as a
matter of convenience!
I hope someone can clarify this and thanks for reading!
alex
p.s. I have had no luck at all finding a simple proxy that is runnable
under cygwin or windows that will let me enable basic proxy
authorization so I can test this. All I know that is my proxy
authorization wasn't working in a client's office - I was getting HTTP
403 - despite me setting the proxy auth in my request (but not putting
.setAuthenticationPreemptive(true)).
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