feat: allow paginating content by actor audience

basically to browse lemmy communities

upub/routes/src/activitypub/actor/audience.rs

@@ -0,0 +1,37 @@
+use axum::extract::{Path, Query, State};
+use sea_orm::{Condition, ColumnTrait};
+
+use upub::Context;
+
+use crate::{activitypub::Pagination, builders::JsonLD, AuthIdentity, Identity};
+
+pub async fn get(
+	State(ctx): State<Context>,
+	Path(id): Path<String>,
+) -> crate::ApiResult<JsonLD<serde_json::Value>> {
+	crate::builders::collection(
+		&upub::url!(ctx, "/actors/{id}/audience"),
+		None,
+	)
+}
+
+pub async fn page(
+	State(ctx): State<Context>,
+	Path(id): Path<String>,
+	AuthIdentity(auth): AuthIdentity,
+	Query(page): Query<Pagination>,
+) -> crate::ApiResult<JsonLD<serde_json::Value>> {
+	let filter = Condition::all()
+		.add(auth.filter())
+		.add(upub::model::object::Column::Audience.eq(ctx.uid(&id)));
+
+	crate::builders::paginate_feed(
+		upub::url!(ctx, "/actors/{id}/audience/page"),
+		filter,
+		ctx.db(),
+		page,
+		auth.my_id(),
+		false,
+	)
+		.await
+}

upub/routes/src/activitypub/actor/mod.rs

@@ -2,6 +2,7 @@ pub mod inbox;
 pub mod outbox;
 pub mod following;
 pub mod notifications;
+pub mod audience;
 
 use axum::extract::{Path, Query, State};
 

upub/routes/src/activitypub/mod.rs

@@ -55,6 +55,8 @@ impl ActivityPubRouter for Router<upub::Context> {
 			.route("/actors/:id/followers/page", get(ap::actor::following::page::<false>))
 			.route("/actors/:id/following", get(ap::actor::following::get::<true>))
 			.route("/actors/:id/following/page", get(ap::actor::following::page::<true>))
+			.route("/actors/:id/audience", get(ap::actor::audience::get))
+			.route("/actors/:id/audience/page", get(ap::actor::audience::page))
 			// activities
 			.route("/activities/:id", get(ap::activity::view))
 			// specific object routes