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From "Karl Wright (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HTTPCLIENT-1488) Built-in NTLM engine fails to authenticate against Squids ntlm_fake_auth, JCIFS doesn't
Date Fri, 21 Mar 2014 11:49:42 GMT

    [ https://issues.apache.org/jira/browse/HTTPCLIENT-1488?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13942992#comment-13942992
] 

Karl Wright commented on HTTPCLIENT-1488:
-----------------------------------------

Hmm, that's indeed odd.  Looking at the code, I can find nothing in the NTLM engine itself
that could be making the decision to not send a type-3 message response, so I have to presume
that the problem is upstream and is flow-related somewhere in the rest of httpclient.

Oleg, what do you think?


> Built-in NTLM engine fails to authenticate against Squids ntlm_fake_auth, JCIFS doesn't
> ---------------------------------------------------------------------------------------
>
>                 Key: HTTPCLIENT-1488
>                 URL: https://issues.apache.org/jira/browse/HTTPCLIENT-1488
>             Project: HttpComponents HttpClient
>          Issue Type: Bug
>          Components: HttpClient
>    Affects Versions: 4.3.3
>         Environment: Squid 4.3.3
> JCIFS 1.3.17
>            Reporter: Andreas Sewe
>         Attachments: builtin.pcap.gz, jcfis.pcap.gz
>
>
> I used the provided ClientProxyAuthentication example <https://hc.apache.org/httpcomponents-client-4.2.x/httpclient/examples/org/apache/http/examples/client/ClientProxyAuthentication.java>
to authenticate with NTML against a local Squid instance, using its ntlm_fake_auth helper
(only does the handshake, all credentials are considered valid).
> Unfortunately, this fails with the NTLM engine built into version 4.3.3 (also tested
with 4.2.1: same result). Following the guidance of <http://hc.apache.org/httpcomponents-client-ga/ntlm.html>,
I got it working with JCIFS. Is Squid not implementing NTLM as expected by HttpComponents?
> I added two Wireshark captures to show the differences in handshake behaviour between
the built-in and JCIFS engines. Hope that helps.



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