use crate::{ activities::{community::announce::GetCommunity, verify_person_in_community}, activity_lists::GroupInboxActivities, collections::{ community_moderators::ApubCommunityModerators, community_outbox::ApubCommunityOutbox, CommunityContext, }, context::WithContext, generate_outbox_url, http::{ create_apub_response, create_apub_tombstone_response, payload_to_string, receive_activity, ActivityCommonFields, }, objects::community::ApubCommunity, protocol::{ activities::community::announce::AnnounceActivity, collections::group_followers::GroupFollowers, }, }; use actix_web::{body::AnyBody, web, web::Payload, HttpRequest, HttpResponse}; use lemmy_api_common::blocking; use lemmy_apub_lib::{object_id::ObjectId, traits::ApubObject}; use lemmy_db_schema::source::community::Community; use lemmy_utils::LemmyError; use lemmy_websocket::LemmyContext; use serde::Deserialize; use tracing::info; #[derive(Deserialize)] pub(crate) struct CommunityQuery { community_name: String, } /// Return the ActivityPub json representation of a local community over HTTP. #[tracing::instrument(skip_all)] pub(crate) async fn get_apub_community_http( info: web::Path, context: web::Data, ) -> Result, LemmyError> { let community: ApubCommunity = blocking(context.pool(), move |conn| { Community::read_from_name(conn, &info.community_name) }) .await?? .into(); if !community.deleted { let apub = community.into_apub(&**context).await?; Ok(create_apub_response(&apub)) } else { Ok(create_apub_tombstone_response(&community.to_tombstone()?)) } } /// Handler for all incoming receive to community inboxes. #[tracing::instrument(skip_all)] pub async fn community_inbox( request: HttpRequest, payload: Payload, _path: web::Path, context: web::Data, ) -> Result { let unparsed = payload_to_string(payload).await?; info!("Received community inbox activity {}", unparsed); let activity_data: ActivityCommonFields = serde_json::from_str(&unparsed)?; let activity = serde_json::from_str::>(&unparsed)?; receive_group_inbox(activity.inner(), activity_data, request, &context).await?; Ok(HttpResponse::Ok().finish()) } pub(in crate::http) async fn receive_group_inbox( activity: GroupInboxActivities, activity_data: ActivityCommonFields, request: HttpRequest, context: &LemmyContext, ) -> Result { let actor_id = ObjectId::new(activity_data.actor.clone()); let res = receive_activity(request, activity.clone(), activity_data, context).await?; if let GroupInboxActivities::AnnouncableActivities(announcable) = activity { let community = announcable.get_community(context, &mut 0).await?; verify_person_in_community(&actor_id, &community, context, &mut 0).await?; if community.local { AnnounceActivity::send(*announcable, &community, context).await?; } } Ok(res) } /// Returns an empty followers collection, only populating the size (for privacy). pub(crate) async fn get_apub_community_followers( info: web::Path, context: web::Data, ) -> Result, LemmyError> { let community = blocking(context.pool(), move |conn| { Community::read_from_name(conn, &info.community_name) }) .await??; let followers = GroupFollowers::new(community, &context).await?; Ok(create_apub_response(&followers)) } /// Returns the community outbox, which is populated by a maximum of 20 posts (but no other /// activites like votes or comments). pub(crate) async fn get_apub_community_outbox( info: web::Path, context: web::Data, ) -> Result, LemmyError> { let community = blocking(context.pool(), move |conn| { Community::read_from_name(conn, &info.community_name) }) .await??; let id = ObjectId::new(generate_outbox_url(&community.actor_id)?); let outbox_data = CommunityContext(community.into(), context.get_ref().clone()); let outbox: ApubCommunityOutbox = id .dereference(&outbox_data, context.client(), &mut 0) .await?; Ok(create_apub_response(&outbox.into_apub(&outbox_data).await?)) } #[tracing::instrument(skip_all)] pub(crate) async fn get_apub_community_moderators( info: web::Path, context: web::Data, ) -> Result, LemmyError> { let community: ApubCommunity = blocking(context.pool(), move |conn| { Community::read_from_name(conn, &info.community_name) }) .await?? .into(); let id = ObjectId::new(generate_outbox_url(&community.actor_id)?); let outbox_data = CommunityContext(community, context.get_ref().clone()); let moderators: ApubCommunityModerators = id .dereference(&outbox_data, context.client(), &mut 0) .await?; Ok(create_apub_response( &moderators.into_apub(&outbox_data).await?, )) }