Add support for SVCB and HTTPS records

[pieterlexis-tomtom]

These records are defined in RFC 9460 and are used for "Service Binding" and provide clients with all connection information for network services.

Modern browsers already query for these records and several larger websites have adopted usage of HTTPS records already.

I have added a few XXX comments that indicate some questions I had regarding the internal data structure.
But by-and-large, parsing and generating these records works well.

[ross]

Will probably take me a couple days to read up on the new record types and develop an opinion on them.

Looks like the dig on OSX is not new enough for the types, but you can use a dockerized version:

coho:~ ross$ docker run --rm -ti toolbelt/dig +short https google.com.
1 . alpn="h2,h3"
coho:~ ross$ docker run --rm -ti toolbelt/dig +short https cloudflare.com.
1 . alpn="h3,h2" ipv4hint=104.16.132.229,104.16.133.229 ipv6hint=2606:4700::6810:84e5,2606:4700::6810:85e5
coho:~ ross$ docker run --rm -ti toolbelt/dig +short https facebook.com.
coho:~ ross$

Seems to be about 50/50 for the big "name brand" sites I've tested.

Once I'm caught up I'll take a look at the code/XXXs

[ross]

Overall solid & thorough PR. Made a pass through answering the XXX bits and a couple other minor things.

Thanks.

[pieterlexis-tomtom]

I think this is ready for review

[ross]

Interesting, guess that wasn't enough. I'll poke around and see what I can find:

[ross]

Pushed a slight reworking to get rid of the continue and instead use an else which afaict is logically equivilent and maybe a little more readable. Will hold off merging this until @pieterlexis-tomtom gets a change to 👀 and give a 👍, but I think it's good to go now.

octodns/octodns/record/svcb.py

Lines 160 to 168 in df85637

	if len(paramvalue) != 0:
	params[paramkey] = paramvalue[0]
	parse_rdata_text = SUPPORTED_PARAMS.get(paramkey, {}).get(
	'parse_rdata_text', None
	)
	if parse_rdata_text is not None:
	params[paramkey] = parse_rdata_text(paramvalue[0])
	else:
	params[paramkey] = None

[pieterlexis-tomtom]

Pushed a slight reworking to get rid of the continue and instead use an else which afaict is logically equivilent and maybe a little more readable. Will hold off merging this until @pieterlexis-tomtom gets a change to 👀 and give a 👍, but I think it's good to go now.

LGTM!

[ross]

Thanks