Live testing of remote categories
ActivityPub Test Kategorie
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@julian not sure. Cc’ing @jaonculverhouse
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@julian @activitypub Makes sense. Were NodeBB's own federated categories represented as users prior to this change? Do you assume that all groups are FEP-1b12 groups?
There was an interesting discussion on SocialHub on identifying FEP-1b12 groups and nutomic made a compelling argument that we should just assume thatGroupsupports FEP-1b12 if there is no other indicator:
FEP-1b12: Group federation
Internet forums are probably the oldest form of social media. They can be implemented with the Activitypub protocol, but such implementations may not necessarily be compatible with each other. This document defines a com…
SocialHub (socialhub.activitypub.rocks)
@silverpill@mitra.social I read back a bit to get a fuller context (not all the way, though, there's a damn lot of bikeshedding in that topic.)
Basically Nutomic is advocating against multi typing because it is poorly supported (true), and because Lemmy has first-mover advantage (also true.)
Requiring a multitype or boolean flag for 1b12 would be quite difficult to do because you'll never have 100% adoption and end up needing backwards compatibility with 1b12-classic anyway — cat's already out of the bag.
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@julian How do you deal with situations where the group actor also sends posts?
For example, on Hubzilla, (streams), and Forte, the top level post of a forum thread is from the forum, not the user. This was originally done for Mastodon compatibility since it did not understand threaded conversations and groups. They could follow the forum as if it were a user, and receive all of the forum posts. They could send a DM to the forum to create a new post.
NodeBB took a different approach, using boosts to distribute user posts to people who follow the forum. And I think you said you use mentions within a post to create a new top level post.
How are we handling the differences in approaches? -
@julian How do you deal with situations where the group actor also sends posts?
For example, on Hubzilla, (streams), and Forte, the top level post of a forum thread is from the forum, not the user. This was originally done for Mastodon compatibility since it did not understand threaded conversations and groups. They could follow the forum as if it were a user, and receive all of the forum posts. They could send a DM to the forum to create a new post.
NodeBB took a different approach, using boosts to distribute user posts to people who follow the forum. And I think you said you use mentions within a post to create a new top level post.
How are we handling the differences in approaches?@scott@loves.tech can you share an example of a group actor from Hubzilla? Would be interesting to see how that's handled. Likely it wouldn't work properly because categories in NodeBB don't author posts.
Do your group actors send creates on behalf of regular users? That might work ok.
Lastly, there's no requirement that a NodeBB category be mentioned. It only needs to be addressed. A mention is the easiest way to do that because you addressing is abstracted out of the Mastodon UI.
But for things like PieFed, Lemmy, Mbin, and likely Hubzilla, you're able to change addressing based on where you create the post.
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@julian I'm not sure. They changed things in the last major version when they adopted FEP 171b Conversation Containers.
Some examples of forum channels are @Hubzilla Support Forum and @Neuhub Support Forum. -
@julian
But for things like PieFed, Lemmy, Mbin, and likely Hubzilla, you're able to change addressing based on where you create the post.
Yes, in Hubzilla, we can click on the padlock and select who the post is addressed to, including NodeBB forums. I haven't tried it yet, but Hubzilla does recognize NodeBB categories as "forums." -
@julian I just tried posting five different posts from Hubzilla to @Testing Ground via various methods, and none are showing up.
1. Post from a group actor, selecting audience from list.
2. Post from a group actor, using a mention.
3. Post from a normal actor, selecting audience from list.
4. Post from a normal actor, using a mention.
5. Post from a normal actor, posting to a Hubzilla Forum (group actor) and mentioning the NodeBB category in the post.
I am not sure if that forum is moderated, but none of my posts are showing up. -
@julian I'm not sure. They changed things in the last major version when they adopted FEP 171b Conversation Containers.
Some examples of forum channels are @Hubzilla Support Forum and @Neuhub Support Forum.By the way, we also have a test forum set up here: @Neuhub Test Forum
#^https://neuhub.org/channel/testforum -
@julian I just tried posting five different posts from Hubzilla to @Testing Ground via various methods, and none are showing up.
1. Post from a group actor, selecting audience from list.
2. Post from a group actor, using a mention.
3. Post from a normal actor, selecting audience from list.
4. Post from a normal actor, using a mention.
5. Post from a normal actor, posting to a Hubzilla Forum (group actor) and mentioning the NodeBB category in the post.
I am not sure if that forum is moderated, but none of my posts are showing up.https://community.nodebb.org/inbox delivery rejected: 403 Forbidden 2025-03-30 22:51:57
https://community.nodebb.org/inbox delivery rejected: 403 Forbidden 2025-03-30 23:28:55 -
https://community.nodebb.org/inbox delivery rejected: 403 Forbidden 2025-03-30 22:51:57
https://community.nodebb.org/inbox delivery rejected: 403 Forbidden 2025-03-30 23:28:55@scott@loves.tech Hubzilla is formatting its Notes in a manner I wasn't expecting.
- The group actor is the
attributedTo, which is not possible in NodeBB - The note itself is not addressed to the group actor, only its followers collection
- There is no way to discern without parsing the note content itself who authored the original note.
So at present while I would be able to retrieve the note, without a proper backreference to the group actor, I don't think I can slot it correctly.
Not sure why the received activity is returning a 403, as well.
- The group actor is the
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@scott@loves.tech Hubzilla is formatting its Notes in a manner I wasn't expecting.
- The group actor is the
attributedTo, which is not possible in NodeBB - The note itself is not addressed to the group actor, only its followers collection
- There is no way to discern without parsing the note content itself who authored the original note.
So at present while I would be able to retrieve the note, without a proper backreference to the group actor, I don't think I can slot it correctly.
Not sure why the received activity is returning a 403, as well.
Forgot to cc @mario@hub.somaton.com re: the above.
- The group actor is the
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@julian I saw a NodeBB test on Hubzilla Monster. I'm guessing that was you.
In order for you to properly mention someone, the Hubzilla server needs to know about that actor first. The easiest way to achieve this is to follow (connect to) that actor. This adds the actor to the database. This only needs to be done if no one on the server is following them or being followed by them.
This does create an extra step if the actor is unknown to the server, but it does force spammers to follow unknown actors before they can mention them. -
@julian @Mario Vavti That is one thing that I wish Hubzilla did, and that is identify the author of the original note (top level post in a forum), both internally in the database and in a variable available to themes, and externally via Zot protocol and ActivityPub.
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@julian in Hubzilla the group actor will fork the original post with a quote reshare. Hence
attributedTois set to the group actor. IIRC the author of the original post is being stored for refernce but we currently do not use this info.
@Scott M. Stolz -
@julian in Hubzilla the group actor will fork the original post with a quote reshare. Hence
attributedTois set to the group actor. IIRC the author of the original post is being stored for refernce but we currently do not use this info.
@Scott M. Stolz@mario@hub.somaton.com since Hubzilla posts (incl. yours) are making it in fine I'm assuming this is only for the "forum" feature?
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@julian right.
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@julian we have recently rewritten the addressing logic and it seems mapping the mentions to
tofor public toplevel posts has fallen short. After fixing this it seems to work fine now: #^https://community.nodebb.org/topic/cbbf1640-2295-4fc5-b86f-5b1fd259cccb/test2
@Scott M. Stolz -
@julian we have recently rewritten the addressing logic and it seems mapping the mentions to
tofor public toplevel posts has fallen short. After fixing this it seems to work fine now: #^https://community.nodebb.org/topic/cbbf1640-2295-4fc5-b86f-5b1fd259cccb/test2
@Scott M. Stolz@mario@hub.somaton.com that's wonderful to hear! Thank you so much.
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Some of the remote categories appear to be broken now.
These are the Flipboard magazines NodeBB is currently aware of when searching "flipboard" in the search page:
- [Tech News by @theverge@flipboard.com](https://community.nodebb.org/category/tech-news-theverge@flipboard.com)
- [Musik News by @musikexpressde@flipboard.com](https://community.nodebb.org/category/musik-news-musikexpressde@flipboard.com)
- [Gear by @engadget@flipboard.com](https://community.nodebb.org/category/gear-engadget@flipboard.com)
However, that very first one (tech news by The Verge) does not work; going to it gives a 404 page instead.
Something else appears to have happened to the Vivaldi Blog remote category (a WordPress blog). A week ago it was working fine, but now, searching for it lists it twice in the search page. Each listing indicates a completely different number of posts and topics for the remote category.
Even weirder though most of the topics that are correctly slotted into it, they are not actually in the category page, e.g. https://community.nodebb.org/topic/a85b0eff-5219-46ba-9ad4-a5d417a7bec5/minor-update-2-for-vivaldi-desktop-browser-7.3
Screenshots
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Some of the remote categories appear to be broken now.
These are the Flipboard magazines NodeBB is currently aware of when searching "flipboard" in the search page:
- [Tech News by @theverge@flipboard.com](https://community.nodebb.org/category/tech-news-theverge@flipboard.com)
- [Musik News by @musikexpressde@flipboard.com](https://community.nodebb.org/category/musik-news-musikexpressde@flipboard.com)
- [Gear by @engadget@flipboard.com](https://community.nodebb.org/category/gear-engadget@flipboard.com)
However, that very first one (tech news by The Verge) does not work; going to it gives a 404 page instead.
Something else appears to have happened to the Vivaldi Blog remote category (a WordPress blog). A week ago it was working fine, but now, searching for it lists it twice in the search page. Each listing indicates a completely different number of posts and topics for the remote category.
Even weirder though most of the topics that are correctly slotted into it, they are not actually in the category page, e.g. https://community.nodebb.org/topic/a85b0eff-5219-46ba-9ad4-a5d417a7bec5/minor-update-2-for-vivaldi-desktop-browser-7.3
Screenshots
Actually, I think I know what's going on with the Vivaldi blog group actor - it's not necessarily NodeBB's fault.
Inspecting the AP objects coming from vivaldi.com/blog, all the English-written blog posts have their
as:audiencefield set tohttps://vivaldi.com/?author=0.Meanwhile, every other blog post that is written in a different language instead have it set to
https://vivaldi.com//?author=0, so for Japanese blog posts, for example, it ishttps://vivaldi.com/ja/?author=0.And all these URLs link to different group actors, but all of them have the same value on the
preferredUsernameandwebfingerproperties:blog, andblog@vivaldi.com.
EDIT: Actually this also appears to be all actor objects coming from vivaldi.com/blog. E.g. if you start typing
[@ruari@vivaldi.com](https://community.nodebb.org/user/ruari%40vivaldi.com)or search for it, you can see it be suggested twice too.So my guess is that there are two person actors that NodeBB knows of that are claiming to be
ruari@vivaldi.com:https://vivaldi.com/?author=46andhttps://vivaldi.com/ja/?author=46.This is probably a bug with the WPML+ActivityPub plugin combination they have going on.
Screenshots
