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From Oleg Kalnichevski <ol...@apache.org>
Subject Re: Commons HTTP Client 3.1 - NTLM Response Empty
Date Wed, 24 Aug 2011 19:15:29 GMT
On Wed, 2011-08-24 at 23:03 +0530, amit shah wrote:
> In the NTLM protocol implementation from httpclient 3.1
> (org.apache.commons.httpclient.auth.NTLM) the NTLM Response Fields are
> always empty (the NtChallengeResponseLen and NtChallengeResponseMaxLen are
> set to 0 while NtChallengeResponseBufferOffset is set to finalLength). I
> have a couple of questions on this
> 
> 1. What is the reason of not computing NTLM Challenge Response?
> 2. We are facing an issue on one of the windows environments where NTLM
> authentication fails with an error - username or password is incorrect. When
> comparing the authentication headers generated from commons httpclient and
> the NTLM protocol implementation from JDK 1.5.15 (using Wireshark) I found
> the NTLM response data being empty. Does this mean  that commons http client
> 3.1 only supports LAN Manager authentication and it does NOT support NTLM
> authentication? If so then a
> HKLM\SYSTEM\CurrentControlSet\Control\Lsa\LmCompatibilityLevel
> registry key value of 4 or 5 on a windows domain controller machine would
> mean that commons http client NTLM authentication would not work for a
> domain account right?
> 
> Thank you.

Amit,

Support for Httpclient 3.1 has been discontinued. Please consider
upgrading to HttpClient 4.1.x

Oleg


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