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From "Kalnichevski, Oleg" <oleg.kalnichev...@bearingpoint.com>
Subject RE: post redirect
Date Fri, 07 Mar 2003 16:38:40 GMT

HttpClient is a library, whereas a browser is a totally different kind of beast.

RFC 2616 says the following:

   If the 301 status code is received in response to a request other
   than GET or HEAD, the user agent MUST NOT automatically redirect the
   request unless it can be confirmed by the user, since this might
   change the conditions under which the request was issued

A well-behaving browser should provide the end user with a confirmation dialog or a configuration
option to automatically perform POST redirects. HttpClient can't have that luxury, as it is
not supposed to be directly interacting with the end user. I am personally convinced that
POST redirect should be handled by the application that consumes Httpclient's services. All
it basically takes is a retry loop

Does anyone see that differently?



-----Original Message-----
From: David Kavanagh [mailto:dak@dotech.com]
Sent: Freitag, 7. März 2003 17:24
To: commons-httpclient-dev@jakarta.apache.org
Subject: post redirect

I've been working with httpclient for a couple of days to build a Cocoon 
transformer that helps me build pipelines to navigate web sites and 
extract data. I've read the parts of RFC2616 that deal with redirects 
and state they are automatic on the client only for GET and HEAD 
methods. I know the JDC and a web site I wrote use POST for the login 
form and issue a redirect as a response. Any browser I've tried this 
with honors the redirect. I can send some test code I've been using to 
test the automated login (that includes handling cookies).
Anyway, I've observed browsers honoring the redirect on a POST, can't 
httpclient be configured that way? Looking at the source code tells me 
no. (I've been using 2.0 alpha 3).


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