Fediverse

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A community to talk about the Fediverse and all it's related services using ActivityPub (Mastodon, Lemmy, KBin, etc).

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Need help implementing ActivityPub - getting inconsistent results across platforms (blenderdumbass.org)

submitted 1 day ago by [email protected] to c/[email protected]

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My friend is working on adding ActivityPub support to his blog platform (BDServer) so people can follow/comment from Mastodon, Lemmy, etc.

Current status: Lemmy and Misskey can find and follow his account (@[email protected]), but Mastodon can't find it at all, even though he sees proper ActivityPub requests hitting his server.

The technical details are pretty gnarly - RSA signature verification, HTTP header recreation, multi-threading issues. He wrote up the full journey here: Please Help Me With Activity Pub

If anyone has ActivityPub experience or wants to take a look at the code (Python), we have a Matrix room for BDServer development. Any insights on why different platforms behave differently would be super helpful.

https://matrix.to/#/#bdserver:tchncs.de

Source code: ActivityPub.py

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[–] [email protected] 1 points 11 hours ago (1 children)

I was trying something on lemmy a while ago and it required an @context.

[–] [email protected] 1 points 4 hours ago

I don't know if somethings changed, but it actually doesn't. This lines would need to be WithContext<SharedInboxActivities>> for that to be the case, and just to make sure I tested against a local running main and was able to send activities to it without the @context just fine.