Re: Perhaps out of scope, but valuable: IDN Codepoint

> [snip]
> Is this obtuse to our focus?

I don't think it has any relevance to the LaunchPhase extension.

EPP currently has no way to signal any metadata relating to IDNs. There
was a draft for an extension but it expired some time ago.

EPP is strictly a provisioning protocol, and therefore signalling of
policy (such as what code points are permitted) is out of scope. The
current best practice is for registries to submit their IDN tables to
IANA for publication. These can then be used by registrars to
pre-validate domains before attempting to register them.

Having said that, an EPP extension that extended the semantics of
<check> might be useful - something like this:

  <?xml version="1.0" encoding="utf-8" standalone="no"?>
  <epp xmlns="urn:ietf:params:xml:ns:epp-1.0">
    <command>
      <check>
        <domain:check xmlns:domain="urn:ietf:params:xml:ns:domain-1.0">
          <domain:name>xn--eqrt2g.xn--fiqs8s</domain:name>
        </domain:check>
      </check>
    </command>
    <extension>
      <validate:check xmlns="urn:centralnic:params:xml:ns:validate-1.0">
        <validate:language>zh</validate:language>
      </validate:check>
    </extension>
  </epp>

We implemented a function in our HTTP Toolkit [1] to do something very
similar.

G.

1: https://www.centralnic.com/registrars/toolkit/doc/validate_domain

-- 
Gavin Brown
Chief Technology Officer
CentralNic Ltd
Innovative, Reliable and Flexible Registry Services
for ccTLD, gTLD and private domain name registries
https://www.centralnic.com/

CentralNic Ltd is a company registered in England and Wales with company
number 4985780. Registered Offices: 35-39 Moorgate, London, EC2R 6AR.

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