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I've completed "Secure Container" - Day 4 - Advent of Code 2019 https://adventofcode.com/2019/day/4

Why is JavaScript called that? The only thing it has in common with Java are toString and indexOf functions.

Added support for displaying images.

Now a question. I currently hotlink everything, including profile pictures. Downloading all media and keeping it eternally like Mastodon does seems to me like a terrible idea. But then hotlinking is also not ideal – Mastodon has images in different sizes internally while only serving the biggest ones through AP.

I'm thinking about something in-between. A LRU cache with admin-configurable size maybe?

#Smithereen #ActivityPub #mastodev

So I just posted a reply to @Gargron's post from my #Smithereen instance. My first reply to someone else's post to contain an LD-signature.

Then interesting things started happening! First, I received an onslaught of incoming requests for... something. I don't log GET requests. I knew Jetty is multi-threaded, but I didn't know it's this multi-threaded. Second, someone with a broken SSL configuration tried to follow me.

I presume that's how you know you're now a proper part of the fediverse?

After countless hours of debugging, #Smithereen now finally supports linked data signatures!

#ActivityPub #mastodev

Could someone please help me making sense of LD-signatures? This RDF stuff drives me crazy.

https://socialhub.activitypub.rocks/t/making-sense-of-rsasignature2017/347

#activitypub #mastodev #smithereen

Done with the non-trivial parts... I HOPE

I made my first unit tests today. I'll have to support the parts of JSON-LD spec I thought I didn't need because, well, I might end up needing them to verify LD-signatures.

#smithereen #activitypub #mastodev

Replying to something now adds a mention of both the author of the original post and of the reply you're replying to – so both those people get notifications. If you're replying to a reply, that second mention is actually visible.

(side note: there are two kinds of mentions in AP, the one you put into the "tag" field which triggers notifications on Mastodon, and the one you put into the post content as a link that users can click on.)

#Smithereen #mastodev #activitypub

Seems like Mastodon only notifies you about a reply if the reply contains a mention. Addressing (to/cc) doesn't matter here AT ALL. So I guess I have to support mentions, no way around that ¯\_(ツ)_/¯

#smithereen #activitypub #mastodev

Verifying JSON-LD signatures doesn't appear to be the easiest thing in the world... #ActivityPub

@judeswae this doesn't open for me for some reason, and the console shows a 403 while it's calling its API. Tried both with and without a VPN, from different browsers too. I surely can't be the only one?

@Gargron this is most certainly Greek even tough кафе is a valid Russian word that means cafe

@tjhorner @grishka I haven't implemented replies there yet :D

@lightone I'll copy as much as makes sense, except there will never be the ability to post as a community.

Also recently learned that the way friend requests work in VK is confusing to those who never used it... Or I'm just bad at explaining things.

Done

@Gargron Wait, is this REAL?

@lightone @strypey also Smithereen which I'm making. VKontakte-like social network written in Java (probably the first ever #ActivityPub implementation in Java) with friends and walls and photos and groups... Of which currently only friends and walls are implemented. Not quite ready enough and so not published anywhere yet, but I'm looking forward to it.

@douginamug https://flak.tedunangst.com/post/ActivityPub-as-it-has-been-understood not a presentation but a series of articles, but it does help with understanding.