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Live testing of remote categories

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  • scott@loves.techS scott@loves.tech
    @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.
    scott@loves.techS This user is from outside of this forum
    scott@loves.techS This user is from outside of this forum
    scott@loves.tech
    wrote on last edited by
    #43
    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
    julian@community.nodebb.orgJ 1 Reply Last reply
    0
    • scott@loves.techS scott@loves.tech
      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
      julian@community.nodebb.orgJ This user is from outside of this forum
      julian@community.nodebb.orgJ This user is from outside of this forum
      julian@community.nodebb.org
      wrote on last edited by
      #44

      @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.

      julian@community.nodebb.orgJ 1 Reply Last reply
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      • julian@community.nodebb.orgJ julian@community.nodebb.org

        @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.

        julian@community.nodebb.orgJ This user is from outside of this forum
        julian@community.nodebb.orgJ This user is from outside of this forum
        julian@community.nodebb.org
        wrote on last edited by
        #45

        Forgot to cc @mario@hub.somaton.com re: the above.

        1 Reply Last reply
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        • scott@loves.techS This user is from outside of this forum
          scott@loves.techS This user is from outside of this forum
          scott@loves.tech
          wrote on last edited by
          #46
          @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.
          1 Reply Last reply
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          • scott@loves.techS This user is from outside of this forum
            scott@loves.techS This user is from outside of this forum
            scott@loves.tech
            wrote on last edited by
            #47
            @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.
            1 Reply Last reply
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            • mario@hub.somaton.comM This user is from outside of this forum
              mario@hub.somaton.comM This user is from outside of this forum
              mario@hub.somaton.com
              wrote on last edited by
              #48
              @julian in Hubzilla the group actor will fork the original post with a quote reshare. Hence attributedTo is 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@community.nodebb.orgJ 1 Reply Last reply
              0
              • mario@hub.somaton.comM mario@hub.somaton.com
                @julian in Hubzilla the group actor will fork the original post with a quote reshare. Hence attributedTo is 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@community.nodebb.orgJ This user is from outside of this forum
                julian@community.nodebb.orgJ This user is from outside of this forum
                julian@community.nodebb.org
                wrote on last edited by
                #49

                @mario@hub.somaton.com since Hubzilla posts (incl. yours) are making it in fine I'm assuming this is only for the "forum" feature?

                1 Reply Last reply
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                • mario@hub.somaton.comM This user is from outside of this forum
                  mario@hub.somaton.comM This user is from outside of this forum
                  mario@hub.somaton.com
                  wrote on last edited by
                  #50
                  @julian right.
                  1 Reply Last reply
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                  • mario@hub.somaton.comM This user is from outside of this forum
                    mario@hub.somaton.comM This user is from outside of this forum
                    mario@hub.somaton.com
                    wrote on last edited by
                    #51
                    @julian we have recently rewritten the addressing logic and it seems mapping the mentions to to for 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@community.nodebb.orgJ 1 Reply Last reply
                    0
                    • mario@hub.somaton.comM mario@hub.somaton.com
                      @julian we have recently rewritten the addressing logic and it seems mapping the mentions to to for 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@community.nodebb.orgJ This user is from outside of this forum
                      julian@community.nodebb.orgJ This user is from outside of this forum
                      julian@community.nodebb.org
                      wrote on last edited by
                      #52

                      @mario@hub.somaton.com that's wonderful to hear! Thank you so much.

                      1 Reply Last reply
                      0
                      • altcode@community.nodebb.orgA This user is from outside of this forum
                        altcode@community.nodebb.orgA This user is from outside of this forum
                        altcode@community.nodebb.org
                        wrote on last edited by
                        #53

                        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

                        Screenshot 2025-04-02 at 22.00.00.png
                        Screenshot 2025-04-02 at 22.17.39.png

                        altcode@community.nodebb.orgA 1 Reply Last reply
                        0
                        • altcode@community.nodebb.orgA altcode@community.nodebb.org

                          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

                          Screenshot 2025-04-02 at 22.00.00.png
                          Screenshot 2025-04-02 at 22.17.39.png

                          altcode@community.nodebb.orgA This user is from outside of this forum
                          altcode@community.nodebb.orgA This user is from outside of this forum
                          altcode@community.nodebb.org
                          wrote on last edited by
                          #54

                          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:audience field set to https://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 is https://vivaldi.com/ja/?author=0.

                          And all these URLs link to different group actors, but all of them have the same value on the preferredUsername and webfinger properties: blog, and blog@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=46 and https://vivaldi.com/ja/?author=46.

                          This is probably a bug with the WPML+ActivityPub plugin combination they have going on.


                          Screenshots

                          Screenshot 2025-04-02 at 23.35.28.png
                          Screenshot 2025-04-02 at 23.40.47.png

                          julian@community.nodebb.orgJ 1 Reply Last reply
                          0
                          • altcode@community.nodebb.orgA altcode@community.nodebb.org

                            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:audience field set to https://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 is https://vivaldi.com/ja/?author=0.

                            And all these URLs link to different group actors, but all of them have the same value on the preferredUsername and webfinger properties: blog, and blog@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=46 and https://vivaldi.com/ja/?author=46.

                            This is probably a bug with the WPML+ActivityPub plugin combination they have going on.


                            Screenshots

                            Screenshot 2025-04-02 at 23.35.28.png
                            Screenshot 2025-04-02 at 23.40.47.png

                            julian@community.nodebb.orgJ This user is from outside of this forum
                            julian@community.nodebb.orgJ This user is from outside of this forum
                            julian@community.nodebb.org
                            wrote on last edited by
                            #55

                            @AltCode okay! Thanks for reporting, it sounds like there are two issues going on:

                            1. Categories losing their handle-to-id association
                              • Frustratingly, this read very similarly to #13283, and both remote users and categories share similar logic. I have so far not been able to reproduce it at all on local development.
                            2. Separate users (different IDs) sharing the same preferredUsername.
                              • This is an interesting one, and I am not entirely sure where the fault lies. I wonder how other software handles it?
                            1 Reply Last reply
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                            • julian@community.nodebb.orgJ This user is from outside of this forum
                              julian@community.nodebb.orgJ This user is from outside of this forum
                              julian@community.nodebb.org
                              wrote on last edited by
                              #56

                              @AltCode I forked this out to a new topic. I think it's time to loop @pfefferle@mastodon.social into the conversation (at the very least so this could be potentially escalated).

                              Mattias, it seems that when the WPML and ActivityPub plugins are enabled together, notes federated out by the blog user in another language have different ids but the same preferredUsername.

                              e.g. ruari@vivaldi.com: https://vivaldi.com/?author=46 and https://vivaldi.com/ja/?author=46

                              NodeBB interprets this as two different users. Curiously, Mastodon does not, the second ID explicitly does not resolve.

                              So there can be two solutions here:

                              1. The underlying issue can be fixed by WordPress, the solution of which is out of scope (for me at least)
                              2. NodeBB can adopt whatever mechanism Mastodon is using... which is most likely that Mastodon does a two-way when asserting an ID, and ensures that the webfinger resource points to the ID.
                              1 Reply Last reply
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                              • julian@community.nodebb.orgJ This user is from outside of this forum
                                julian@community.nodebb.orgJ This user is from outside of this forum
                                julian@community.nodebb.org
                                wrote on last edited by
                                #57

                                The remaining questions here are:

                                • whether preferredUsername is meant to be unique to the instance (in which case having multiple ids point to an identical preferredUsername would be a violation), and
                                • what exactly AP software should do when it encounters this situation... store a list of "known alias" IDs? There are potential security issues to doing so.
                                1 Reply Last reply
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                                • julian@community.nodebb.orgJ This user is from outside of this forum
                                  julian@community.nodebb.orgJ This user is from outside of this forum
                                  julian@community.nodebb.org
                                  wrote on last edited by
                                  #58

                                  @AltCode all three flipboard remote categories seem to be working now 😂

                                  1 Reply Last reply
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                                  • altcode@community.nodebb.orgA This user is from outside of this forum
                                    altcode@community.nodebb.orgA This user is from outside of this forum
                                    altcode@community.nodebb.org
                                    wrote last edited by
                                    #59

                                    This is getting out of hand! Now, there are six of them!
                                    Screenshot 2025-04-22 at 11.27.24.png

                                    julian@community.nodebb.orgJ 1 Reply Last reply
                                    0
                                    • altcode@community.nodebb.orgA altcode@community.nodebb.org

                                      This is getting out of hand! Now, there are six of them!
                                      Screenshot 2025-04-22 at 11.27.24.png

                                      julian@community.nodebb.orgJ This user is from outside of this forum
                                      julian@community.nodebb.orgJ This user is from outside of this forum
                                      julian@community.nodebb.org
                                      wrote last edited by
                                      #60

                                      @AltCode This should be fixed in the upcoming v4.3.0.

                                      https://github.com/NodeBB/NodeBB/issues/13352

                                      It won't proactively remove the duplicates, but they'll be pruned out within ~7 days.

                                      1 Reply Last reply
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                                      • julian@community.nodebb.orgJ This user is from outside of this forum
                                        julian@community.nodebb.orgJ This user is from outside of this forum
                                        julian@community.nodebb.org
                                        wrote last edited by
                                        #61

                                        Bit of a thought experiment here as to how to handle these duplicate accounts.

                                        (tl;dr two federated accounts with different IDs report the same webfinger handle, what do?)

                                        Let's say @ruario@social.vivaldi.net posts an English article under his account (and then is federated), and posts a translated Japanese one that is also federated, but under the Japanese ID.

                                        What should NodeBB do when encountering the latter? Currently, it will try to assert the actor, fail the webfinger backreference check, and probably drop the post. Not so good.

                                        One could adjust the actor to the former (canonical ID), but that's not technically right either.

                                        That also opens up potential account impersonation possibilities, so that is something that would need addressing as well.

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                                        • julian@community.nodebb.orgJ This user is from outside of this forum
                                          julian@community.nodebb.orgJ This user is from outside of this forum
                                          julian@community.nodebb.org
                                          wrote last edited by
                                          #62

                                          @pfefferle@mastodon.social just wanted to poke you about this issue again.

                                          The latest updates to NodeBB now do a webfinger backcheck to ensure that the actor has a valid webfinger entry for their purported handle. If it does not, then the user is not properly created. Mastodon also does this. This check is probably for security as well as for preventing handle collisions.

                                          The multilingual plugin in conjunction with the ActivityPub plugin creates users that share the same handle, and that causes issues with federated content.

                                          For example, this article by @jonvt@vivaldi.com will load up just fine in Mastodon, but this japanese article by @akira@vivaldi.com will not, because that second article's attributedTo is https://vivaldi.com/ja/?author=176, which fails that check (the author's ID is actually https://vivaldi.com?author=176 as per the handle backcheck)

                                          cc @AltCode

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