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accept hs2019-obfuscated http signatures #2811

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kvibber
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@kvibber kvibber commented Apr 9, 2023

Partial fix for #2794 (can't follow to/from GoToSocial)

hs2019 is used by some libraries to obfuscate the real algorithm per the spec https://datatracker.ietf.org/doc/html/draft-cavage-http-signatures-12

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I think it might be cleaner to implement this similarly to how GoToSocial does it, looping through a list of hash functions regardless of the professed algorithm, maybe prioritizing the algorithm in the header if we want to be fancy.

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kvibber commented Apr 16, 2023

Makes sense.

I'm not sure my code is quite right here - Python's not my strongest language. Also I think I may have some issues with my dev setup, since even going back to the current main branch, it isn't picking up posts from Mastodon accounts I follow on Bookwyrm (which do show up on bookwyrm.social), so I can't test it as thoroughly as I'd like.

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@WesleyAC How do we want to proceed in this one?

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