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https://issues.apache.org/jira/browse/HTTPCORE-434?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15562779#comment-15562779
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Reinhold Früsmer edited comment on HTTPCORE-434 at 10/10/16 7:03 PM:
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Oleg,
verified with HttpCore-4.4.6-SNAPSHOT, the problem is solved for us - thanks a
lot!!
But unfortunately, I'm currently unable to verify with 5.0-alpha2 ... after
checking out and building HttpCore and HttpClient from SVN trunk, it's not
possible to compile a simple example for testing.
The compiler complains that class
org.apache.hc.core5.http.message.AbstractHttpMessage is missing - it's
referenced (extended) by HttpRequestWrapper for example, but can't be found
anywhere inside HttpCore source and jar.
Please advise.
Reinhold
was (Author: fruesmerre):
Oleg,
verified with HttpClient-4.4.6-SNAPSHOT, the problem is solved for us - thanks
a lot!!
But unfortunately, I'm currently unable to verify with 5.0-alpha2 ... after
checking out and building HttpCore and HttpClient from SVN trunk, it's not
possible to compile a simple example for testing.
The compiler complains that class
org.apache.hc.core5.http.message.AbstractHttpMessage is missing - it's
referenced (extended) by HttpRequestWrapper for example, but can't be found
anywhere inside HttpCore source and jar.
Please advise.
Reinhold
> Handling of HEAD responses without payload headers
> --------------------------------------------------
>
> Key: HTTPCORE-434
> URL: https://issues.apache.org/jira/browse/HTTPCORE-434
> Project: HttpComponents HttpCore
> Issue Type: Bug
> Components: HttpCore
> Affects Versions: 4.4.5
> Reporter: Reinhold Früsmer
> Fix For: 4.4.6, 5.0-alpha2
>
> Attachments: tomcat-squid-ntlm-not-stateful.pcapng,
> tomcat-squid-ntlm-stateful.pcapng, wire-context-log.txt, wirelog-4.5.3.txt
>
>
> Hi,
> I'm not sure if this is a problem with HttpClient itself or with Squid
> (3.3.8) proxy server, but maybe you could please advise.
> Our client application first sends a HEAD request for NTLM authentication
> with the proxy and then re-uses the execution context as described in
> https://hc.apache.org/httpcomponents-client-ga/tutorial/html/authentication.html
> for the following POST requests.
> Using more recent versions of Tomcat on the server-side, re-using the
> execution context does not work anymore, the NTLM authentication
> negotiate-challenge is repeated forever and following POST requests with
> chunked transfer-encoding don't work since they are interrupted by the
> authentication challenge.
> I figured out the difference betweeen newer and older Tomcat versions and
> found the reason: previously, Tomcat automatically added a "Content-Length:
> 0" header to the reponse of HEAD requests. With "Bug 59310 - Content-Length
> of HEAD requests incorrectly computed as 0"
> (https://bz.apache.org/bugzilla/show_bug.cgi?id=59310), this behavior was
> changed and without this header, NTLM connections to the proxy don't persist
> anymore.
> As the content-length header is optional in a response to a HEAD request (RFC
> 7230), the problem must be either in HttpClient or Squid proxy.
> Thanks in advance!
> Best regards
> Reinhold
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