use crate::{ activities::{community::announce::GetCommunity, verify_person_in_community}, activity_lists::GroupInboxActivities, collections::{ community_moderators::ApubCommunityModerators, community_outbox::ApubCommunityOutbox, CommunityContext, }, context::WithContext, fetcher::object_id::ObjectId, generate_outbox_url, http::{ create_apub_response, create_apub_tombstone_response, payload_to_string, receive_activity, }, objects::community::ApubCommunity, protocol::{ activities::community::announce::AnnounceActivity, collections::group_followers::CommunityFollowers, }, }; use actix_web::{body::Body, web, web::Payload, HttpRequest, HttpResponse}; use lemmy_api_common::blocking; use lemmy_apub_lib::{ traits::{ActivityFields, ActorType, ApubObject}, verify::verify_domains_match, }; use lemmy_db_schema::source::community::Community; use lemmy_utils::LemmyError; use lemmy_websocket::LemmyContext; use log::info; use serde::Deserialize; #[derive(Deserialize)] pub(crate) struct CommunityQuery { community_name: String, } /// Return the ActivityPub json representation of a local community over HTTP. 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.to_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. 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 = serde_json::from_str::>(&unparsed)?; receive_group_inbox(activity.inner(), request, &context).await?; Ok(HttpResponse::Ok().finish()) } pub(in crate::http) async fn receive_group_inbox( activity: GroupInboxActivities, request: HttpRequest, context: &LemmyContext, ) -> Result { let res = receive_activity(request, activity.clone(), context).await; if let GroupInboxActivities::AnnouncableActivities(announcable) = activity { let community = announcable.get_community(context, &mut 0).await?; let actor_id = ObjectId::new(announcable.actor().clone()); verify_domains_match(&community.actor_id(), announcable.id_unchecked())?; verify_person_in_community(&actor_id, &community, context, &mut 0).await?; if community.local { AnnounceActivity::send(announcable, &community, vec![], context).await?; } } 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 = CommunityFollowers::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)?.into_inner()); let outbox_data = CommunityContext(community.into(), context.get_ref().clone()); let outbox: ApubCommunityOutbox = id.dereference(&outbox_data, &mut 0).await?; Ok(create_apub_response(&outbox.to_apub(&outbox_data).await?)) } 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)?.into_inner()); let outbox_data = CommunityContext(community, context.get_ref().clone()); let moderators: ApubCommunityModerators = id.dereference(&outbox_data, &mut 0).await?; Ok(create_apub_response( &moderators.to_apub(&outbox_data).await?, )) }