Terence Eden. He has a beard and is smiling.

Terence Eden’s Blog

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A reasonably practical guide to validating RFC 9421 HTTP Signatures for ActivityPub in PHP

· 900 words

A padlock engraved into a circuit board.

If you're reading this, you've probably been hitting your head against a brick wall trying to parse and decipher the new HTTP Signatures sent by Mastodon and other Fediverse servers. This is a basic and somewhat incomplete guide to accepting these signatures. I'm sure there are various gotchas, but it works with the signatures I've seen in the wild. Shut Up And Show Me The Code! OK, wow, no…

Book Review: ActivityPub by Evan Prodromou

· 1 comment · 400 words · Viewed ~928 times

Book cover with a parrot on it.

As part of my grant from NLnet to improve my Fediverse bot project, I'm spending time making sure I understand all the fundamentals of ActivityPub. The problem with Internet standards is they're scattered all over the place. Abandoned forums, half-maintained wikis, mailing lists with obscure rules, and monolithic blocks of text. Sometimes you just want one book which collates all the info and…