RecordType.URL should be RecordType.URI

[macfreek]

Summary

libcloud.dns.types defines a RecordType 'URL'. However, no such RR Type exists in DNS. Likely, this is supposed to refer to the 'URI' RR Type.

Detailed Information

The authoritative list of DNS RR types is https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml. There is no 'URL' RR type in this list. There is a 'URI' RR type in this list, as defined in RFC 7553

This RecordType is defined in 4 places in libcloud:

libcloud.dns.types, line 112:

    URL = 'URL'

libcloud.dns.drivers.cloudflare, line 171: [sic!]

        RecordType.URL: 'LOC'

According to the Cloudflare API documentation, the correct name should indeed be 'URI'.

libcloud.dns.drivers.dnsimple, line 57

        RecordType.URL: 'URL',

This seems correct. DNSsimple indeed has a proprietory URL record.

libcloud.dns.drivers.zerigo, line 142

        RecordType.URL: 'URL',

http://www.zerigo.com gives an error. I get the impression this API is no longer functional.

Suggested Resolution

My suggestion is to change these occurrences into 'URI'
I stand corrected, DNSsimple does indeed has a proprietory URL record type. However, Cloudflare does not.
My suggestion is to either remove support for the URI RR type at Cloudflare (it will likely not have worked due to the incorrect 'LOC' string), or to add support for the URI RR type next to the (unofficial) URL RR type.

I'm happy to create a PR once there is consensus about the best approach to fix this.

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