ActivityPub 插件

pepicrft · 2024 年9 月 25 日 13:08

你好
首先，感谢您为实现这一目标所付出的辛勤工作。我很高兴能将我们的社区迁移到 Discourse，这要归功于此。

我已将插件添加到我们的实例并配置了一个 actor。但是，当我发布到与 actor 关联的类别时，会收到“内部服务器错误”。我在日志中找不到太多信息，除了请求失败并出现 500 错误：

[no timestamp]  by PostsController#create as JSON
[no timestamp]  Parameters: {"raw"=>"This is just a test test test", "title"=>"This is just a test test test", "unlist_topic"=>"false", "category"=>"10", "is_warning"=>"false", "archetype"=>"regular", "typing_duration_msecs"=>"200", "composer_open_duration_msecs"=>"3160", "shared_draft"=>"false", "draft_key"=>"new_topic", "activity_pub_visibility"=>"public", "nested_post"=>"true"}
Sep 25 15:06:38 - Processing by PostsController#create as JSON
Sep 25 15:06:38 - Parameters: {"raw"=>"This is just a test test test", "title"=>"This is just a test test test", "unlist_topic"=>"false", "category"=>"10", "is_warning"=>"false", "archetype"=>"regular", "typing_duration_msecs"=>"200", "composer_open_duration_msecs"=>"3160", "shared_draft"=>"false", "draft_key"=>"new_topic", "activity_pub_visibility"=>"public", "nested_post"=>"true"}
Sep 25 15:06:38 - 172.18.0.1 - - [25/Sep/2024:13:06:38 +0000] "POST /message-bus/3e2e0add2e9a41cc9ce7041980fe4f81/poll HTTP/1.1" 200 2438 "https://community.tuist.io/c/announcements/10" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0"
Sep 25 15:06:38 - 172.18.0.1 - - [25/Sep/2024:13:06:38 +0000] "POST /message-bus/3e2e0add2e9a41cc9ce7041980fe4f81/poll HTTP/1.1" 200 115 "https://community.tuist.io/c/announcements/10" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0"
[no timestamp]  2024-09-25T13:06:38Z cloudron 37a832f8-20ab-41d7-9d4d-82052354c0eb 1101 37a832f8-20ab-41d7-9d4d-82052354c0eb - 172.18.0.1 - - [25/Sep/2024:13:06:38 +0000] "POST /message-bus/3e2e0add2e9a41cc9ce7041980fe4f81/poll HTTP/1.1" 200 115 "https://community.tuist.io/c/announcements/10" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0"
[no timestamp]  start
Sep 25 15:06:39 - start
[no timestamp]  start
Sep 25 15:06:39 - start
[no timestamp]  done
Sep 25 15:06:39 - done
[no timestamp]  start
Sep 25 15:06:39 - start
[no timestamp]  start
[no timestamp]  start
Sep 25 15:06:39 - start
Sep 25 15:06:39 - start
[no timestamp]  done
Sep 25 15:06:39 - done
[no timestamp]  done
Sep 25 15:06:39 - done
[no timestamp]  500 Internal Server Error in 476ms (ActiveRecord: 0.0ms | Allocations: 56364)
[no timestamp]  done
Sep 25 15:06:39 - Completed 500 Internal Server Error in 476ms (ActiveRecord: 0.0ms | Allocations: 56364)
Sep 25 15:06:39 - done
Sep 25 15:06:39 - 172.18.0.1 - - [25/Sep/2024:13:06:39 +0000] "POST /posts HTTP/1.1" 500 46 "https://community.tuist.io/c/announcements/10" "Mozilla/5.0 (Macintosh; Intel Mac OS X 10.15; rv:130.0) Gecko/20100101 Firefox/130.0"
[no timestamp]  start
Sep 25 15:06:39 - start
[no timestamp]  done
Sep 25 15:06:39 - done
[no timestamp]  done
Sep 25 15:06:39 - done

调试此问题的推荐方法是什么？

RGJ · 2024 年9 月 25 日 13:55

下一步是转到论坛上的 /logs，找到相应的日志行，然后在此处发布堆栈跟踪。

pepicrft · 2024 年9 月 30 日 12:25

错误如下：

Message

NoMethodError (undefined method `moderating_groups' for #<Category id: 10, name: "Announcements", color: "652D90", topic_id: 55, topic_count: 5, created_at: "2024-09-25 09:23:28.181772000 +0000", updated_at: "2024-09-27 11:53:47.131692000 +0000", user_id: 3, topics_year: 4, topics_month: 4, topics_week: 4, slug: "announcements", description: "This category is used for announcements by the mai...", text_color: "FFFFFF", read_restricted: false, auto_close_hours: nil, post_count: 4, latest_post_id: 108, latest_topic_id: 83, position: 7, parent_category_id: nil, posts_year: 4, posts_month: 4, posts_week: 4, email_in: nil, email_in_allow_strangers: false, topics_day: 0, posts_day: 0, allow_badges: true, name_lower: "announcements", auto_close_based_on_last_post: false, topic_template: nil, contains_messages: nil, sort_order: nil, sort_ascending: nil, uploaded_logo_id: nil, uploaded_background_id: nil, topic_featured_link_allowed: true, all_topics_wiki: false, show_subcategory_list: false, num_featured_topics: 3, default_view: nil, subcategory_list_style: "rows_with_featured_topics", default_top_period: "all", mailinglist_mirror: false, minimum_required_tags: 0, navigate_to_first_post_after_read: false, search_priority: 0, allow_global_tags: false, reviewable_by_group_id: nil, read_only_banner: nil, default_list_filter: "all", allow_unlimited_owner_edits_on_first_post: false, default_slow_mode_seconds: nil, uploaded_logo_dark_id: nil, uploaded_background_dark_id: nil>)
lib/plugin/instance.rb:376:in `public_send'
lib/plugin/instance.rb:376:in `block (2 levels) in add_to_class'
lib/plugin/instance.rb:376:in `public_send'
lib/plugin/instance.rb:376:in `block (2 levels) in add_to_class'
lib/plugin/instance.rb:376:in `public_send'
lib/plugin/instance.rb:376:in `block (2 levels) in add_to_class'
lib/plugin/instance.rb:376:in `public_send'
lib/plugin/instance.rb:376:in `block (2 levels) in add_to_class'
lib/plugin/instance.rb:576:in `block in on'
lib/discourse_event.rb:12:in `bl...

Backtrace

activemodel (7.1.3.4) lib/active_model/attribute_methods.rb:489:in `method_missing'
plugins/discourse-activity-pub/plugin.rb:367:in `block (2 levels) in activate!'
lib/plugin/instance.rb:376:in `public_send'
lib/plugin/instance.rb:376:in `block (2 levels) in add_to_class'
plugins/discourse-activity-pub/plugin.rb:331:in `block (2 levels) in activate!'
lib/plugin/instance.rb:376:in `public_send'
lib/plugin/instance.rb:376:in `block (2 levels) in add_to_class'
plugins/discourse-activity-pub/plugin.rb:337:in `block (2 levels) in activate!'
lib/plugin/instance.rb:376:in `public_send'
lib/plugin/instance.rb:376:in `block (2 levels) in add_to_class'
plugins/discourse-activity-pub/app/models/discourse_activity_pub_object.rb:99:in `after_scheduled'
plugins/discourse-activity-pub/app/models/discourse_activity_pub_activity.rb:109:in `after_scheduled'
plugins/discourse-activity-pub/lib/discourse_activity_pub/delivery_handler.rb:89:in `after_scheduled'
plugins/discourse-activity-pub/lib/discourse_activity_pub/delivery_handler.rb:15:in `perform'
plugins/discourse-activity-pub/lib/discourse_activity_pub/delivery_handler.rb:27:in `perform'
plugins/discourse-activity-pub/app/models/concerns/discourse_activity_pub/ap/model_callbacks.rb:160:in `block in activity_pub_deliver_activity'
plugins/discourse-activity-pub/app/models/concerns/discourse_activity_pub/ap/model_callbacks.rb:159:in `each'
plugins/discourse-activity-pub/app/models/concerns/discourse_activity_pub/ap/model_callbacks.rb:159:in `activity_pub_deliver_activity'
plugins/discourse-activity-pub/app/models/concerns/discourse_activity_pub/ap/model_callbacks.rb:41:in `perform_activity_pub_activity'
plugins/discourse-activity-pub/plugin.rb:455:in `block (2 levels) in activate!'
lib/plugin/instance.rb:376:in `public_send'
lib/plugin/instance.rb:376:in `block (2 levels) in add_to_class'
plugins/discourse-activity-pub/plugin.rb:661:in `block (2 levels) in activate!'
lib/plugin/instance.rb:576:in `block in on'
lib/discourse_event.rb:12:in `block in trigger'
/home/cloudron/rbenv/versions/3.2.2/lib/ruby/3.2.0/set.rb:511:in `each_key'
/home/cloudron/rbenv/versions/3.2.2/lib/ruby/3.2.0/set.rb:511:in `each'
lib/discourse_event.rb:12:in `trigger'
lib/post_creator.rb:258:in `trigger_after_events'
lib/post_creator.rb:220:in `create'
lib/new_post_manager.rb:318:in `perform_create_post'
lib/new_post_manager.rb:252:in `perform'
app/controllers/posts_controller.rb:215:in `create'
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actionpack (7.1.3.4) lib/action_controller/metal/rendering.rb:165:in `process_action'
actionpack (7.1.3.4) lib/abstract_controller/callbacks.rb:259:in `block in process_action'
activesupport (7.1.3.4) lib/active_support/callbacks.rb:121:in `block in run_callbacks'
app/controllers/application_controller.rb:424:in `block in with_resolved_locale'
i18n (1.14.5) lib/i18n.rb:351:in `with_locale'
app/controllers/application_controller.rb:424:in `with_resolved_locale'
activesupport (7.1.3.4) lib/active_support/callbacks.rb:130:in `block in run_callbacks'
activesupport (7.1.3.4) lib/active_support/callbacks.rb:141:in `run_callbacks'
actionpack (7.1.3.4) lib/abstract_controller/callbacks.rb:258:in `process_action'
actionpack (7.1.3.4) lib/action_controller/metal/rescue.rb:25:in `process_action'
actionpack (7.1.3.4) lib/action_controller/metal/instrumentation.rb:74:in `block in process_action'
activesupport (7.1.3.4) lib/active_support/notifications.rb:206:in `block in instrument'
activesupport (7.1.3.4) lib/active_support/notifications/instrumenter.rb:58:in `instrument'
activesupport (7.1.3.4) lib/active_support/notifications.rb:206:in `instrument'
actionpack (7.1.3.4) lib/action_controller/metal/instrumentation.rb:73:in `process_action'
actionpack (7.1.3.4) lib/action_controller/metal/params_wrapper.rb:261:in `process_action'
activerecord (7.1.3.4) lib/active_record/railties/controller_runtime.rb:32:in `process_action'
actionpack (7.1.3.4) lib/abstract_controller/base.rb:160:in `process'
actionview (7.1.3.4) lib/action_view/rendering.rb:40:in `process'
rack-mini-profiler (3.3.1) lib/mini_profiler/profiling_methods.rb:89:in `block in profile_method'
actionpack (7.1.3.4) lib/action_controller/metal.rb:227:in `dispatch'
actionpack (7.1.3.4) lib/action_controller/metal.rb:309:in `dispatch'
actionpack (7.1.3.4) lib/action_dispatch/routing/route_set.rb:49:in `dispatch'
actionpack (7.1.3.4) lib/action_dispatch/routing/route_set.rb:32:in `serve'
actionpack (7.1.3.4) lib/action_dispatch/journey/router.rb:51:in `block in serve'
actionpack (7.1.3.4) lib/action_dispatch/journey/router.rb:131:in `block in find_routes'
actionpack (7.1.3.4) lib/action_dispatch/journey/router.rb:124:in `each'
actionpack (7.1.3.4) lib/action_dispatch/journey/router.rb:124:in `find_routes'
actionpack (7.1.3.4) lib/action_dispatch/journey/router.rb:32:in `serve'
actionpack (7.1.3.4) lib/action_dispatch/routing/route_set.rb:882:in `call'
lib/middleware/omniauth_bypass_middleware.rb:64:in `call'
rack (2.2.9) lib/rack/tempfile_reaper.rb:15:in `call'
rack (2.2.9) lib/rack/conditional_get.rb:40:in `call'
rack (2.2.9) lib/rack/head.rb:12:in `call'
actionpack (7.1.3.4) lib/action_dispatch/http/permissions_policy.rb:36:in `call'
lib/content_security_policy/middleware.rb:12:in `call'
lib/middleware/anonymous_cache.rb:393:in `call'
lib/middleware/csp_script_nonce_injector.rb:12:in `call'
config/initializers/008-rack-cors.rb:14:in `call'
rack (2.2.9) lib/rack/session/abstract/id.rb:266:in `context'
rack (2.2.9) lib/rack/session/abstract/id.rb:260:in `call'
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actionpack (7.1.3.4) lib/action_dispatch/middleware/callbacks.rb:29:in `block in call'
activesupport (7.1.3.4) lib/active_support/callbacks.rb:101:in `run_callbacks'
actionpack (7.1.3.4) lib/action_dispatch/middleware/callbacks.rb:28:in `call'
actionpack (7.1.3.4) lib/action_dispatch/middleware/debug_exceptions.rb:29:in `call'
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config/initializers/100-quiet_logger.rb:20:in `call'
config/initializers/100-silence_logger.rb:29:in `call'
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actionpack (7.1.3.4) lib/action_dispatch/middleware/static.rb:25:in `call'
rack (2.2.9) lib/rack/sendfile.rb:110:in `call'
rack-mini-profiler (3.3.1) lib/mini_profiler.rb:191:in `call'
message_bus (4.3.8) lib/message_bus/rack/middleware.rb:60:in `call'
lib/middleware/request_tracker.rb:360:in `call'
actionpack (7.1.3.4) lib/action_dispatch/middleware/remote_ip.rb:92:in `call'
railties (7.1.3.4) lib/rails/engine.rb:536:in `call'
railties (7.1.3.4) lib/rails/railtie.rb:226:in `public_send'
railties (7.1.3.4) lib/rails/railtie.rb:226:in `method_missing'
rack (2.2.9) lib/rack/urlmap.rb:74:in `block in call'
rack (2.2.9) lib/rack/urlmap.rb:58:in `each'
rack (2.2.9) lib/rack/urlmap.rb:58:in `call'
unicorn (6.1.0) lib/unicorn/http_server.rb:634:in `process_client'
unicorn (6.1.0) lib/unicorn/http_server.rb:739:in `worker_loop'
unicorn (6.1.0) lib/unicorn/http_server.rb:547:in `spawn_missing_workers'
unicorn (6.1.0) lib/unicorn/http_ser

Env

HTTP HOSTS: community.tuist.io

db0 · 2024 年10 月 8 日 08:30

嘿，我是 lemmy.dbzer0.com 的管理员，我希望看到 lemmy 和 discourse 之间有更多的互动，因为我觉得这两者比 discourse 和 mastodon 结合得更自然。

我主要感兴趣的是让 lemmy 用户能够在不为每个 discourse 论坛创建新账户的情况下查看和互动话题。

据我所知，最大的问题是 apub 插件没有将 discourse 分类表示为 apub 组，这导致 lemmy 无法看到它们，对吗？

无论如何，如果你想访问一个 lemmy 实例和一个管理员进行测试，我很乐意提供帮助。我在 lemmy 上的账户是 https://lemmy.dbzer0.com/u/db0

angus · 2024 年10 月 9 日 09:39

大家好，我将从现在开始一直到明年三月，定期为这个插件提供支持。如果您一直在使用此插件并且在某些方面遇到困难，请告诉我！我会尽力回答所有未解决的问题。

Discourse 中的每个用户都在一个 Actor 中。Discourse 中的关注流程与 Lemmy 中的相同，并且在 FEP-1b12 中有更详细的说明。您还不能关注 Discourse Actor（即主要关注点一直是关注类别）的原因是，论坛本质上是围绕主题的，即涉及多个用户的讨论。事实上，其他论坛式 ActivityPub 应用程序也采用了这种方法，这也是我们在 W3C 论坛和主题讨论工作组（以及 NodeBB 和类似软件）中一直在努力的方向。

您所描述的是“仅首帖”和“完整主题”联合之间的区别。您期望的是“完整主题”联合的工作方式。请参阅此处的文档和教学视频。

此错误意味着您运行的 Discourse 版本不是最新的。ActivityPub 插件目前需要最新版本的 Discourse 才能工作。

不，ActivityPub 插件完全符合 FEP-1b12，该标准由 Nutomic（Lemmy 的创建者）编写，用于描述基于群组的联合。您是否尝试过在 Lemmy 和 Discourse 之间进行联合？

mcdanlj · 2024 年10 月 9 日 11:01

您能否调查一下为什么 meta 没有正确显示我的域名，也没有显示我的任何 meta 内容？

db0 · 2024 年10 月 9 日 12:45

是否有支持此插件的 Discourse 服务器可供我们测试？我猜这个论坛不使用它，对吗？

Firepup650 · 2024 年10 月 9 日 12:49

Meta确实使用activitypub，例如，这个主题没有联合：

而这个主题则联合了：

db0 · 2024 年10 月 9 日 13:37

我在哪里可以看到此信息？另外，第二个链接对我来说不可用

angus · 2024 年10 月 9 日 14:00

该页面的 URL（而非 AP uri）是：

您可以通过点击 AP 图标来查看 AP 信息。

db0 · 2024 年10 月 9 日 14:10

我很难找到任何 Apub 主题。大多数情况下，图标不存在

即使存在，它也是禁用的。

不过，我还是按照您发布的链接，在 lemmy 中搜索了该网址（这是检索之前未订阅的链接的方式），但找不到。我也找不到公告论坛，因此无法订阅它。

db0 · 2024 年10 月 9 日 14:13

好的，我通过搜索 announcements@meta.discourse.org 找到了它并订阅了。我将尝试订阅其他几个话题，看看是否能在 lemmy 中看到新帖子。

编辑：一些社区可以找到，例如 Feature 和 Announcements，但 Support、Plugin 和 Bug 找不到 https://lemmy.dbzer0.com/search?q=!plugin%40meta.discourse.org&type=Communities&listingType=All&page=1&sort=TopAll

angus · 2024 年10 月 9 日 14:19

这是因为它们没有 Actor。请查看文档和教学视频。您会发现每个 Category 都需要指定一个 Actor 才能被找到。

在 meta 上，我认为只有 Announcements 和 Feature 被创建了 Actor。

db0 · 2024 年10 月 9 日 14:21

但我是一个外部实例，试图从你那里获取联合内容。我无法看到那个，对吧？

编辑：哦，我现在看到了联合选项卡，但只是有时。其他时候它不出现

angus · 2024 年10 月 9 日 15:09

是的，这个问题很快就会得到解决。如果您看不到它，只需刷新页面即可出现。请告诉我您的进展。

请注意，我和 @mcdanlj 正在私下讨论此事。这很可能是一个历史遗留问题（即因为 Michael 是早期采用者）。

db0 · 2024 年10 月 9 日 15:17

是的，有两个问题：

无法找到现有的联合线程，例如 https://meta.discourse.org/ap/object/235d597a789c305cef86318ef84d8762？我在 lemmy 上搜索过它，但它没有出现。
为什么一个主题中的某些线程是联合的，而其他线程不是？我该如何判断？

另外，也许 Following an ActivityPub Actor 也可以更新一些与 lemmy 相关的信息？

hellekin · 2024 年10 月 9 日 16:17

您可以同时询问 Lemmy 开发者和 @angus（地址：https://socialhub.activitypub.rocks/c/software/lemmy/46），以便他们更好地协调。与 Lemmy 的互操作将是

@angus，在最近的一篇 Mastodon 博客文章中，有一个值得实现的功能，例如，用于用户个人资料中的特色主题，如果该主题是由该用户发起的：

我们决定创建一种新的 OpenGraph 标签——与您网站上用于确定在 Discord、iMessage 或 Mastodon 上共享页面时预览缩略图的标签类型相同。它看起来像这样：<meta name="fediverse:creator" content="@Gargron@mastodon.social" />。

元标签将出现在主题上，以便 Mastodon 可以链接到用户的个人资料。我知道 Discourse 中没有用户 actor，但如果 ActivityPub actor 是一个出版公司，而该主题是关于他们的目录的，那么用例就说得通了。

angus · 2024 年10 月 9 日 16:21

是的，正如 @hellekin 所建议的，我认为更深入的 Lemmy / Discourse 讨论最好在这里进行：

随着我恢复此插件的工作，请在那里发布您更详细的 Lemmy 问题，我将很快跟进。

谢谢，我会考虑一下。

Discourse 中存在用户 Actor。您只是无法关注它们（目前）。由于这个误解今天已经出现三次了，我正在考虑在 UI 的某个地方显示它。回答后续问题“为什么不能关注用户 Actor，如果它们存在的话？”，首先需要回答之前的问题“为什么要在 Discourse 中关注用户 Actor？”（即，真正的用例是什么）。

（我知道 Discourse Follow 存在 - 我构建了它 - 但是在实例内关注用户以用于通知/发现目的与在联邦宇宙中关注用户 Actor 之间存在差异）

angus · 2024 年10 月 10 日 09:28

一旦合并，这个问题就会得到修复。

另外请注意，我很快就会在 meta 上写一篇关于 Lemmy ↔ Discourse 的“如何做”主题，并附带教学视频。如果您正在使用或想使用 Lemmy 与 Discourse 进行联合，请在此处添加您的想法/经验，我将确保在说明中解决它们。

hellekin · 2024 年10 月 22 日 14:44

太棒了，刚刚上线了一个很棒的改动：

github.com/discourse/discourse-activity-pub

FEATURE: Allow actor preferred username changed

main ← angusmcleod:allow_actor_preferred_username_changed

opened 12:44PM - 18 Oct 24 UTC

angusmcleod

+57 -70

The following will happen on remote services if you change the username: - Ma…stodon: The username displayed for the actor will not change until someone performs a lookup of the new handle. Following / Posting etc will continue to work regardless of the username displayed. - Discourse: The username will be updated the next time there is any interaction with the actor, including: - any activities are received from the actor; and - the actor is the subject of a lookup in the "Follow" modal. See further: https://socialhub.activitypub.rocks/t/changeable-usernames/830/13?u=angus

话题		回复	浏览量
Forum federation thread on the.socialmusic.network General activitypub	24	396	2025 年7 月 5 日
Publishing posts to Mastodon Administrators video , activitypub	19	747	2025 年7 月 3 日
Local ActivityPub Actors are being created without keypairs Support activitypub	20	132	2025 年3 月 17 日
Setting up an ActivityPub Actor Administrators video , activitypub	10	775	2025 年1 月 6 日
Federation support for Discourse Feature completed	122	37908	2024 年5 月 17 日

ActivityPub 插件

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