ooni / probe-cli / 36544908222

71%

Build Type

push

github

Committed by web-flow

Commit Message

Add ddr experiment (#1675)

## Checklist

- [x] I have read the [contribution
guidelines](https://github.com/ooni/probe-cli/blob/master/CONTRIBUTING.md)
- [x] reference issue for this pull request:
https://github.com/ooni/probe/issues/2819
- [x] if you changed anything related to how experiments work and you
need to reflect these changes in the ooni/spec repository, please link
to the related ooni/spec pull request:
https://github.com/ooni/spec/pull/300
- [x] if you changed code inside an experiment, make sure you bump its
version number

<!-- Reminder: Location of the issue tracker:
https://github.com/ooni/probe -->

## Description

As described here: https://github.com/ooni/probe/issues/2819, I would be
interested to run experiments of the DDR protocol (RFC 9462). This
experiment uses the system resolver, as I am interested in whether the
local system resolvers support this protocol (we have already conducted
tests using zmap from one vantage point).

To get the system resolver I am checking /etc/resolve, it should also be
possible by querying using the default DNS provider and checking the
answer or config, however I did not get this to work.

~~I have no idea about what the spec should look like. Right now I just
put the DDR responses as JSON objects into the testkeys. If that is not
supported because it could violate the spec, it would also be possible
to just insert the string / do some parsing here to get some more useful
information (e.g. if DoT or DoH is supported, what the target is...)~~

## TODOs

- [x] Testing
- [x] PR for spec

---------

Co-authored-by: decfox <mehul@openobservatory.org>

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245 of 339 new or added lines in 22 files covered. (72.27%)

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29331 of 41187 relevant lines covered (71.21%)

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