Updates to ActivityPub in a single PHP file
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Updates to ActivityPub in a single PHP file
https://shkspr.mobi/blog/2024/03/updates-to-activitypub-in-a-single-php-file/
A few weeks ago, I built an ActivityPub Server in a Single PHP File. It's a proof of concept showing how easy it is to turn a website into a full-featured Fediverse participant.
After a bunch of feedback and testing, I've added a some features to make it slightly more useful.
- A single PHP file - 45KB of no-library goodness. Just add your details, upload, and done.
- No databases. Everything stored as JSON files on disk.
- Be followed. External users can discover and follow you.
- Send messages. You can send messages to all your followers.
- 🆕 Follow users. You can follow other Fediverse actors.
- 🆕 Read messages. You can read the messages sent to your Inbox. If media is attached, those will be displayed.
- 🆕 Verify signatures. ActivityPub messages can by cryptographically signed. This now verifies those signatures.
You can grab the code here - pull requests welcome. If you want to see what it looks like in action, visit https://example.viii.fi/ or follow
@example@example.viii.fi.Again, to re-emphasise what it says in the README - this is not suitable for production use. This is primarily a way to explain all the different functions of an ActivityPub server. It is adequately commented and I hope a moderately competent programmer could follow what's going on. It is almost certainly insecure and is considered harmful to aquatic life.
I would be delighted if you took the code and did something interesting with it. Perhaps create a single-file server in your favourite language?
ToDo
A few random things which I might add - or which you might consider making and sending a Pull Request:
- Better UI. It is deliberately bare-bones, see the
/readinterface. But perhaps there's a simpler way to make it look nice? - No threading in the UI - and no ability to reply to messages.
- Support for reading hashtagged posts on the site.
- Reply highlighting - at the moment you can't see if a message was sent to you.
- Some Fediverse posts contain polls, content warnings, and other extended features. That could be fun to support - both for reading and writing.
- Support for reading custom emoji.
- Deletes, Updates, and Undos are received - but it currently doesn't remove the previously saved file.
- There's no way to unfollow a user - except for manually deleting data from the file-system.
- Only supports one image upload. Could support more? Or even other media?
- I don't think CC works properly.
- Message visibility could be useful.
- Boring stuff like better error handling.
If you have opinions, please let me know!
-
Updates to ActivityPub in a single PHP file
https://shkspr.mobi/blog/2024/03/updates-to-activitypub-in-a-single-php-file/
A few weeks ago, I built an ActivityPub Server in a Single PHP File. It's a proof of concept showing how easy it is to turn a website into a full-featured Fediverse participant.
After a bunch of feedback and testing, I've added a some features to make it slightly more useful.
- A single PHP file - 45KB of no-library goodness. Just add your details, upload, and done.
- No databases. Everything stored as JSON files on disk.
- Be followed. External users can discover and follow you.
- Send messages. You can send messages to all your followers.
- 🆕 Follow users. You can follow other Fediverse actors.
- 🆕 Read messages. You can read the messages sent to your Inbox. If media is attached, those will be displayed.
- 🆕 Verify signatures. ActivityPub messages can by cryptographically signed. This now verifies those signatures.
You can grab the code here - pull requests welcome. If you want to see what it looks like in action, visit https://example.viii.fi/ or follow
@example@example.viii.fi.Again, to re-emphasise what it says in the README - this is not suitable for production use. This is primarily a way to explain all the different functions of an ActivityPub server. It is adequately commented and I hope a moderately competent programmer could follow what's going on. It is almost certainly insecure and is considered harmful to aquatic life.
I would be delighted if you took the code and did something interesting with it. Perhaps create a single-file server in your favourite language?
ToDo
A few random things which I might add - or which you might consider making and sending a Pull Request:
- Better UI. It is deliberately bare-bones, see the
/readinterface. But perhaps there's a simpler way to make it look nice? - No threading in the UI - and no ability to reply to messages.
- Support for reading hashtagged posts on the site.
- Reply highlighting - at the moment you can't see if a message was sent to you.
- Some Fediverse posts contain polls, content warnings, and other extended features. That could be fun to support - both for reading and writing.
- Support for reading custom emoji.
- Deletes, Updates, and Undos are received - but it currently doesn't remove the previously saved file.
- There's no way to unfollow a user - except for manually deleting data from the file-system.
- Only supports one image upload. Could support more? Or even other media?
- I don't think CC works properly.
- Message visibility could be useful.
- Boring stuff like better error handling.
If you have opinions, please let me know!
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@blog Thanks! Much respect for just getting this out there. Love the comments! 😂
Gli ultimi otto messaggi ricevuti dalla Federazione
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@kuechenlatein @freuwesen für einen post? einfach die visibility auf "private" stellen (do not federate), dann schickt das plugin ein delete.
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@freuwesen Wie nimmst du denn im Fediverse die Veröffentlichung zurück?@pfefferle
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Hey @pfefferle
Mal wieder eine Frage zum #activitypub Plugin.
Es müsste doch auch möglich sein, spätestens bei Deinstallation oder Deaktivierung die Erweiterung des Blogs ins Fediverse zu kappen und das dortige Profil mitsamt aller Posts zu löschen.
Ist das schon so?
Und wie ist das wenn ich einen veröffentlichen Blogbeitrag einzeln aus dem Fediverse entfernen möchte ohne den Blogbeitrag im Blog zu löschen? Reagiert das darauf, wenn ich im Post die Fediverse Veröffentlichung zurück nehme?
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@wendythedruid I really like the PDS part of the protocol and the way identity is handled. The fact that you decide where your data is regardless of the app you choose to use is neat
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While I like the protocol for what it is, and how it was written, it is indeed NOT actually decentralized in the classical sense. And it is also algorithmic, even if they say its not.
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@kitsune thanks! can you elaborate on what are you interested in?
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cc @smallcircles for delightful apps
