Hi Tim. Thanks, this is really cool. Do you want commit access to libidn2 so you can push this? What's your gitlab username? I have limited time and don't want to be in your way for this to happen. I'm happy to do review, but can't promise when.
/Simon tis 2016-11-29 klockan 22:23 +0100 skrev Tim Rühsen: > On Mittwoch, 2. November 2016 10:04:19 CET Daniel Stenberg wrote: > > On Wed, 2 Nov 2016, Simon Josefsson wrote: > > > Switching from IDNA2003 to IDNA2008 requires thought. They are not > > > compatible, and IDNA2008 requires pre-processing (e.g., UTS #46 [1]) to > > > be usable in practice. Libidn2 does not implement any pre-processing, > > > it is a pure IDNA2008 implementation. > > > > > > [1] http://www.unicode.org/reports/tr46/ > > > > Thanks for this Simon. I wasn't aware. > > > > Based on this, I suppose my recommendation is that people simply switch off > > IDN support in curl builds until further notice to stay safe. The old way > > was open for trickery and the new way is incomplete. > > Please review and comment https://gitlab.com/rockdaboot/libidn2/tree/tr46 > (It works for me ). > > I would like to open a pull request to libidn2 soon. > That code will be useful for any DNS clients resolving IDNs. > > From my mail to help-libidn mailing list: > > The code introduces new flags for the lookup functions IDN2_TRANSITIONAL and > IDN2_NONTRANSITIONAL (mutual exclusive). > > IDN2_TRANSITIONAL enables the TR46 transitional process. > IDN2_NONTRANSITIONAL enables the TR46 non-transitional process. > > Corresponding, the 'idn2' utility now has -T/--tr46t to enable transitional > lookup and -N/--tr46nt to enable non-transitional lookup. > > Example: > $ src/idn2 -T faß.de > fass.de > > $ src/idn2 -N faß.de > xn--fa-hia.de > > To show the TR46 mapping (upper->lowercase) in work: > $ src/idn2 Faß.de > idn2: lookup: string contains a disallowed character > > $ src/idn2 -T Faß.de > fass.de > > $ src/idn2 -N Faß.de > xn--fa-hia.de > > Regards, Tim
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