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https://issues.apache.org/jira/browse/HTTPCLIENT-860?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12730657#action_12730657
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Ben Perkins commented on HTTPCLIENT-860:
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Extensibility is one of the things that drew me to this client. It's
unfortunate that the redirect mechanism isn't quite extensible enough right now
to accomplish what I need. I'll open an enhancement request for 4.1.
Thanks,
Ben
> DefaultRequestDirector converts redirects of PUT/POST to GET for status codes
> 301, 302, 307
> -------------------------------------------------------------------------------------------
>
> Key: HTTPCLIENT-860
> URL: https://issues.apache.org/jira/browse/HTTPCLIENT-860
> Project: HttpComponents HttpClient
> Issue Type: Bug
> Components: HttpClient
> Affects Versions: 4.0 Beta 2
> Reporter: Ben Perkins
> Fix For: 4.0 Final
>
> Attachments: HTTPCLIENT-860.patch
>
>
> The DefaultRequestDirector treats redirect requests created by all redirect
> status codes (HttpStatus.SC_MOVED_TEMPORARILY: ,
> HttpStatus.SC_MOVED_PERMANENTLY, HttpStatus.SC_SEE_OTHER,
> HttpStatus.SC_TEMPORARY_REDIRECT) the same, converting PUT/POST methods to
> GET. The HttpClient Tutorial even documents this as being in accordance with
> the specification, but I don't believe that's true.
> Per the RFC (http://www.w3.org/Protocols/rfc2616/rfc2616-sec10.html),
> conversion of PUT/POST to GET is appropriate only for 303 (See Other). The
> others do not suggest this behavior. In fact, the following notes attached
> to them call it out as incorrect.
> 301 (Moved Permanently) has this note:
> Note: When automatically redirecting a POST request after
> receiving a 301 status code, some existing HTTP/1.0 user agents
> will erroneously change it into a GET request.
> And 302 (Found) say this:
> Note: RFC 1945 and RFC 2068 specify that the client is not allowed
> to change the method on the redirected request. However, most
> existing user agent implementations treat 302 as if it were a 303
> response, performing a GET on the Location field-value regardless
> of the original request method. The status codes 303 and 307 have
> been added for servers that wish to make unambiguously clear which
> kind of reaction is expected of the client.
> The currently implemented behavior is causing problems with interacting with
> Central Authentication Service protected resources, among other things.
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