Hi,

The flag is a good idea to handle old systems but the feature must be
enabled by default (at least for PHP 7) and disablable through the flag.
IDN RFCs are more than 10 years old. All major browsers and registrars
support IDN.

Le vendredi 19 septembre 2014, Tjerk Meesters <tjerk.meest...@gmail.com> a
écrit :

>
> On 19 Sep 2014, at 06:52, Andrea Faulds <a...@ajf.me <javascript:;>> wrote:
>
> >
> > On 18 Sep 2014, at 21:26, Kévin Dunglas <dung...@gmail.com
> <javascript:;>> wrote:
> >
> >> I'm working on enhancing the FILTER_VALIDATE_URL filter (
> >> https://github.com/php/php-src/pull/826).
> >> The current implementation does not support validation of
> internationalized
> >> domain names (i.e: http://www.académie-française.fr/
> <http://www.xn--acadmie-franaise-npb1a.fr/>
> >> <http://www.xn--acadmie-franaise-npb1a.fr/>).
> >>
> >> Support of IDN validation can be easily added using ICU's
> uidna_toASCII()
> >> function.
> >>
> >> Is it acceptable to add a dependency to ICU for ext/filter?
> >> Another option is to add a HAVE_ICU constant in main/php_config.h and to
> >> validate IDN only if ICU is present.
> >>
> >> What strategy is preferred?
> >
> > Perhaps add a new filter that covers normal URLs and IDN ones? I just
> imagine it might cause problems if suddenly IDNs are accepted, if there is
> a backend which can’t handle them.
>
> We don’t need a new filter, you can simply add a filter flag for
> FILTER_VALIDATE_URL, e.g. FILTER_FLAG_ALLOW_IDN.
>
> Of course, the ICU dependency should be optional :)
>
> >
> > --
> > Andrea Faulds
> > http://ajf.me/
> >
> >
> >
> >
> >
> > --
> > PHP Internals - PHP Runtime Development Mailing List
> > To unsubscribe, visit: http://www.php.net/unsub.php
> >
>
>

-- 
Kévin Dunglas
Consultant et développeur freelance

http://dunglas.fr
Tél. : 06 60 91 20 20

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