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Re: IDN support in the validator

From: Bjoern Hoehrmann <derhoermi@gmx.net>
Date: Thu, 13 Jan 2005 10:39:20 +0100
To: Martin Duerst <duerst@w3.org>
Cc: www-validator@w3.org
Message-ID: <41eb4095.55220875@smtp.bjoern.hoehrmann.de>

* Martin Duerst wrote:
> >>My guess is that the conversion to punycode was correctly made before
> >>resolving the host name, but that punycode was not used is the Host:
> >>field of HTTP/1.1. Although that's not explicitly written down anywhere,
> >>that's how it works (at least with deployed servers).
> >
> >That seems a weird interpretation of "Bad hostname", don't you think?
>
>It's less an interpretation of "Bad hostname" than an interpretation
>of the whole picture based on previous experiences with getting IDNs
>to work. But if you have a better guess, that would be fine with me.

"Bad hostname 'räksmörgås.josefsson.org'" suggests that the hostname did
not resolve which either means that xn--rksmrgs-5wao1o.josefsson.org
cannot be resolved or that punycode is not involved. As

  http://validator.w3.org/check?uri=http%3A%2F%2Fxn--rksmrgs-5wao1o.josefsson.org

works, it would seem that there is no punycode conversion whatsoever.
That you see räksmörgås.josefsson.org in the error message is also more
a coincidence than by design, if you use http://d%fcrst.invalid, you
would get an ill-formed response from the Validator.
-- 
Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
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Received on Thursday, 13 January 2005 09:39:17 GMT

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