lemmy/crates/apub/src/activities/community/mod.rs

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use crate::{
activities::send_lemmy_activity,
activity_lists::AnnouncableActivities,
objects::{community::ApubCommunity, person::ApubPerson},
protocol::activities::community::announce::AnnounceActivity,
};
use activitypub_federation::{config::Data, traits::Actor};
use lemmy_api_common::context::LemmyContext;
use lemmy_db_schema::source::person::PersonFollower;
use lemmy_utils::error::LemmyError;
2021-11-02 13:02:39 +00:00
use url::Url;
pub mod announce;
pub mod collection_add;
pub mod collection_remove;
pub mod lock_page;
pub mod report;
pub mod update;
/// This function sends all activities which are happening in a community to the right inboxes.
/// For example Create/Page, Add/Mod etc, but not private messages.
///
/// Activities are sent to the community itself if it lives on another instance. If the community
/// is local, the activity is directly wrapped into Announce and sent to community followers.
/// Activities are also sent to those who follow the actor (with exception of moderation activities).
///
/// * `activity` - The activity which is being sent
/// * `actor` - The user who is sending the activity
/// * `community` - Community inside which the activity is sent
/// * `inboxes` - Any additional inboxes the activity should be sent to (for example,
/// to the user who is being promoted to moderator)
/// * `is_mod_activity` - True for things like Add/Mod, these are not sent to user followers
pub(crate) async fn send_activity_in_community(
activity: AnnouncableActivities,
actor: &ApubPerson,
community: &ApubCommunity,
extra_inboxes: Vec<Url>,
is_mod_action: bool,
context: &Data<LemmyContext>,
) -> Result<(), LemmyError> {
// send to any users which are mentioned or affected directly
let mut inboxes = extra_inboxes;
// send to user followers
if !is_mod_action {
inboxes.append(
&mut PersonFollower::list_followers(context.pool(), actor.id)
.await?
.into_iter()
.map(|p| ApubPerson(p).shared_inbox_or_inbox())
.collect(),
);
}
if community.local {
// send directly to community followers
AnnounceActivity::send(activity.clone().try_into()?, community, context).await?;
} else {
// send to the community, which will then forward to followers
inboxes.push(community.shared_inbox_or_inbox());
}
send_lemmy_activity(context, activity.clone(), actor, inboxes, false).await?;
Ok(())
}