mirror of
https://github.com/LemmyNet/lemmy.git
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d20d2b9218
* Implement federated user following (fixes #752) * rewrite send_activity_in_community and add docs, remove default for column pending * improve migration * replace null values in db migration
77 lines
2.8 KiB
Rust
77 lines
2.8 KiB
Rust
use crate::{
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activities::send_lemmy_activity,
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activity_lists::AnnouncableActivities,
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local_instance,
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objects::{community::ApubCommunity, person::ApubPerson},
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protocol::activities::community::announce::AnnounceActivity,
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};
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use activitypub_federation::{core::object_id::ObjectId, traits::Actor};
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use lemmy_db_schema::source::person::PersonFollower;
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use lemmy_utils::error::LemmyError;
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use lemmy_websocket::LemmyContext;
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use url::Url;
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pub mod add_mod;
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pub mod announce;
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pub mod remove_mod;
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pub mod report;
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pub mod update;
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/// This function sends all activities which are happening in a community to the right inboxes.
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/// For example Create/Page, Add/Mod etc, but not private messages.
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///
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/// Activities are sent to the community itself if it lives on another instance. If the community
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/// is local, the activity is directly wrapped into Announce and sent to community followers.
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/// Activities are also sent to those who follow the actor (with exception of moderation activities).
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///
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/// * `activity` - The activity which is being sent
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/// * `actor` - The user who is sending the activity
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/// * `community` - Community inside which the activity is sent
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/// * `inboxes` - Any additional inboxes the activity should be sent to (for example,
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/// to the user who is being promoted to moderator)
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/// * `is_mod_activity` - True for things like Add/Mod, these are not sent to user followers
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pub(crate) async fn send_activity_in_community(
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activity: AnnouncableActivities,
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actor: &ApubPerson,
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community: &ApubCommunity,
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extra_inboxes: Vec<Url>,
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is_mod_action: bool,
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context: &LemmyContext,
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) -> Result<(), LemmyError> {
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// send to extra_inboxes
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send_lemmy_activity(context, activity.clone(), actor, extra_inboxes, false).await?;
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if community.local {
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// send directly to community followers
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AnnounceActivity::send(activity.clone().try_into()?, community, context).await?;
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} else {
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// send to the community, which will then forward to followers
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let inbox = vec![community.shared_inbox_or_inbox()];
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send_lemmy_activity(context, activity.clone(), actor, inbox, false).await?;
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}
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// send to those who follow `actor`
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if !is_mod_action {
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let inboxes = PersonFollower::list_followers(context.pool(), actor.id)
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.await?
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.into_iter()
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.map(|p| ApubPerson(p).shared_inbox_or_inbox())
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.collect();
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send_lemmy_activity(context, activity, actor, inboxes, false).await?;
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}
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Ok(())
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}
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#[tracing::instrument(skip_all)]
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async fn get_community_from_moderators_url(
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moderators: &Url,
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context: &LemmyContext,
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request_counter: &mut i32,
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) -> Result<ApubCommunity, LemmyError> {
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let community_id = Url::parse(&moderators.to_string().replace("/moderators", ""))?;
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ObjectId::new(community_id)
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.dereference(context, local_instance(context).await, request_counter)
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.await
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}
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