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Re: Redirects continued -- was: Problem with certificate on home-grown WebID

From: Henry Story <henry.story@bblfish.net>
Date: Wed, 21 Dec 2011 19:41:28 +0100
Cc: Sebastian Trüg <sebastian@trueg.de>, public-xg-webid XG <public-xg-webid@w3.org>, Carvalho Melvin <melvincarvalho@gmail.com>, foaf-protocols@lists.foaf-project.org, Alexandre Bertalis <alexandre@bertails.org>
Message-Id: <9A03BBC9-9C94-4AA9-87A1-43B86B1E62A0@bblfish.net>
To: Pierre-Antoine Champin <pierre-antoine.champin@liris.cnrs.fr>
Ok I found the issue in the new code I deployed yesterday on foafssl.org. We are
using in the read-write-web project the Apache HttpClient library 4.1.2 which has
the class DefaultRequestDirector. This class does in fact follow redirects, but it does 
not follow redirects by default to different hosts! Here is the offending (to some, 
unknown to most) code:

1045  // Invalidate auth states if redirecting to another host
1046  if (!route.getTargetHost().equals(newTarget)) {
1047      targetAuthState.invalidate();
1048      AuthScheme authScheme = proxyAuthState.getAuthScheme();
1049      if (authScheme != null && authScheme.isConnectionBased()) {
1050          proxyAuthState.invalidate();
1051      }
1052  }
http://bit.ly/vcZjqb

Btw, it is interesting to note that this library limits redirects to 100 by default
and checks for loops. It would be interesting to know why they put that in there.


Henry 


On 21 Dec 2011, at 18:20, Pierre-Antoine Champin wrote:

> On 12/21/2011 05:19 PM, Henry Story wrote:
>> 
>> On 21 Dec 2011, at 16:57, Pierre-Antoine Champin wrote:
>> 
>>> Hi,
>>> 
>>> I had the same misunderstanding as Sebastian, creating WebID
>>> http://champin.net/pa
>>> 
>>> I now created
>>> http://champin.net/#pa
>>> (which I too prefer, btw).
>>> 
>>> But that one does not work with foafssl.org :-(
>> 
>> That's because at present it does not have redirection implemented and you resource redirects
>> 
>> $ curl -i  http://champin.net/ 
>> HTTP/1.0 302 Found
>> Server: BaseHTTP/0.3 Python/2.5.2
>> Date: Wed, 21 Dec 2011 16:15:10 GMT
>> Location: http://liris.cnrs.fr/~pchampin/
>> Content-type: text/html
>> Vary: Host
> 
> 
> I beg to differ: http://champin.net/pa redirected as well, and it worked
> (and still does)!

Social Web Architect
http://bblfish.net/
Received on Wednesday, 21 December 2011 18:41:59 GMT

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