feat(builderapi): accept the builder hostname as request auth data - #192
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…nLabs#17511) **What type of PR is this?** > Feature **What does this PR do? Why is it needed?** - ethereum/builder-specs#168 Implements this spec change. **Which issue(s) does this PR fix?** N/A **Other notes for review** Note that using the current version of buildoor would probably have some trouble as buildoor is not yet updated (Nico already opened a [PR](ethpandaops/buildoor#192) for this). So I'd suggest to merge this PR **after** all open PRs are merged. **Acknowledgements** - [x] I have read [CONTRIBUTING.md](https://github.com/prysmaticlabs/prysm/blob/develop/CONTRIBUTING.md). - [x] I have included a uniquely named [changelog fragment file](https://github.com/prysmaticlabs/prysm/blob/develop/CONTRIBUTING.md#maintaining-changelogmd). - [x] I have added a description with sufficient context for reviewers to understand this PR. - [ ] I have tested that my changes work as expected and I added a testing plan to the PR description (if applicable).
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builder-specs is changing the default
BuilderRequestAuth.datafrom the UTF-8 bytes of the builder URL to the URL's hostname in ethereum/builder-specs#168, so that a trailing slash, an explicit default port or different casing on the proposer side no longer fails the builder's check.Both ePBS handlers now accept the hostname derived from
--builder-api-url: lowercased, with IPv6 literals in brackets in their compressed form using hexadecimal groups only. The URL bytes verbatim are still accepted, since validator clients on the devnets and the lodestar image in the e2e config sign those until they adopt the new default. That path can be dropped once they have.