Migrate to libidn2?

[ghost]

Our current implementation uses libidn and the libidn README says:

The IDNA2003 specifications have been superseded by IDNA2008 which is implemented by Libidn2 https://www.gnu.org/software/libidn/#libidn2, and the only reasonable use of the libidn library today is to support the historic IDNA2003 behaviour or to use Stringprep profiles. Please try to migrate to libidn2 wherever possible.

Should we therefore migrate to libidn2?

[matsduf]

Yes, Zonemaster should support IDNA 2008. Stringprep has been moved out of the core protocol, but parts of it are still valid. That has been incorporated in the proposed update of Basic00 (https://github.com/zonemaster/zonemaster/pull/942).

[matsduf]

Do you know if LDNS has support for libidn2?

[ghost]

Do you know if LDNS has support for libidn2?

From what I've seen, the IDN support is handled by Zonemaster::LDNS:

https://github.com/zonemaster/zonemaster-ldns/blob/001a9835bbc92367f8bab4228010c62872f7ffba/include/LDNS.h#L15-L17

https://github.com/zonemaster/zonemaster-ldns/blob/001a9835bbc92367f8bab4228010c62872f7ffba/src/LDNS.xs#L11-L37

[ghost]

Converting from libidn: https://libidn.gitlab.io/libidn2/manual/libidn2.html#Converting-from-libidn

[matsduf]

Resolved by #113.

[matsduf]

resolved by #133