use crate::{ collections::CommunityContext, generate_moderators_url, objects::person::ApubPerson, protocol::collections::group_moderators::GroupModerators, }; use activitystreams::{chrono::NaiveDateTime, collection::kind::OrderedCollectionType}; use lemmy_api_common::blocking; use lemmy_apub_lib::{object_id::ObjectId, traits::ApubObject, verify::verify_domains_match}; use lemmy_db_schema::{ source::community::{CommunityModerator, CommunityModeratorForm}, traits::Joinable, }; use lemmy_db_views_actor::community_moderator_view::CommunityModeratorView; use lemmy_utils::LemmyError; use url::Url; #[derive(Clone, Debug)] pub(crate) struct ApubCommunityModerators(pub(crate) Vec); #[async_trait::async_trait(?Send)] impl ApubObject for ApubCommunityModerators { type DataType = CommunityContext; type TombstoneType = (); type ApubType = GroupModerators; fn last_refreshed_at(&self) -> Option { None } async fn read_from_apub_id( _object_id: Url, data: &Self::DataType, ) -> Result, LemmyError> { // Only read from database if its a local community, otherwise fetch over http if data.0.local { let cid = data.0.id; let moderators = blocking(data.1.pool(), move |conn| { CommunityModeratorView::for_community(conn, cid) }) .await??; Ok(Some(ApubCommunityModerators { 0: moderators })) } else { Ok(None) } } async fn delete(self, _data: &Self::DataType) -> Result<(), LemmyError> { unimplemented!() } async fn into_apub(self, data: &Self::DataType) -> Result { let ordered_items = self .0 .into_iter() .map(|m| ObjectId::::new(m.moderator.actor_id)) .collect(); Ok(GroupModerators { r#type: OrderedCollectionType::OrderedCollection, id: generate_moderators_url(&data.0.actor_id)?.into(), ordered_items, }) } fn to_tombstone(&self) -> Result { unimplemented!() } async fn verify( group_moderators: &GroupModerators, expected_domain: &Url, _context: &CommunityContext, _request_counter: &mut i32, ) -> Result<(), LemmyError> { verify_domains_match(&group_moderators.id, expected_domain)?; Ok(()) } async fn from_apub( apub: Self::ApubType, data: &Self::DataType, request_counter: &mut i32, ) -> Result { let community_id = data.0.id; let current_moderators = blocking(data.1.pool(), move |conn| { CommunityModeratorView::for_community(conn, community_id) }) .await??; // Remove old mods from database which arent in the moderators collection anymore for mod_user in ¤t_moderators { let mod_id = ObjectId::new(mod_user.moderator.actor_id.clone()); if !apub.ordered_items.contains(&mod_id) { let community_moderator_form = CommunityModeratorForm { community_id: mod_user.community.id, person_id: mod_user.moderator.id, }; blocking(data.1.pool(), move |conn| { CommunityModerator::leave(conn, &community_moderator_form) }) .await??; } } // Add new mods to database which have been added to moderators collection for mod_id in apub.ordered_items { let mod_id = ObjectId::new(mod_id); let mod_user: ApubPerson = mod_id.dereference(&data.1, request_counter).await?; if !current_moderators .iter() .map(|c| c.moderator.actor_id.clone()) .any(|x| x == mod_user.actor_id) { let community_moderator_form = CommunityModeratorForm { community_id: data.0.id, person_id: mod_user.id, }; blocking(data.1.pool(), move |conn| { CommunityModerator::join(conn, &community_moderator_form) }) .await??; } } // This return value is unused, so just set an empty vec Ok(ApubCommunityModerators { 0: vec![] }) } } #[cfg(test)] mod tests { use super::*; use crate::objects::{ community::tests::parse_lemmy_community, person::tests::parse_lemmy_person, tests::{file_to_json_object, init_context}, }; use lemmy_db_schema::{ source::{ community::Community, person::{Person, PersonForm}, }, traits::Crud, }; use serial_test::serial; #[actix_rt::test] #[serial] async fn test_parse_lemmy_community_moderators() { let context = init_context(); let community = parse_lemmy_community(&context).await; let community_id = community.id; let old_mod = PersonForm { name: "holly".into(), ..PersonForm::default() }; let old_mod = Person::create(&context.pool().get().unwrap(), &old_mod).unwrap(); let community_moderator_form = CommunityModeratorForm { community_id: community.id, person_id: old_mod.id, }; CommunityModerator::join(&context.pool().get().unwrap(), &community_moderator_form).unwrap(); let new_mod = parse_lemmy_person(&context).await; let json: GroupModerators = file_to_json_object("assets/lemmy/collections/group_moderators.json"); let url = Url::parse("https://enterprise.lemmy.ml/c/tenforward").unwrap(); let mut request_counter = 0; let community_context = CommunityContext { 0: community, 1: context, }; ApubCommunityModerators::verify(&json, &url, &community_context, &mut request_counter) .await .unwrap(); ApubCommunityModerators::from_apub(json, &community_context, &mut request_counter) .await .unwrap(); assert_eq!(request_counter, 0); let current_moderators = blocking(community_context.1.pool(), move |conn| { CommunityModeratorView::for_community(conn, community_id) }) .await .unwrap() .unwrap(); assert_eq!(current_moderators.len(), 1); assert_eq!(current_moderators[0].moderator.id, new_mod.id); Person::delete(&*community_context.1.pool().get().unwrap(), old_mod.id).unwrap(); Person::delete(&*community_context.1.pool().get().unwrap(), new_mod.id).unwrap(); Community::delete( &*community_context.1.pool().get().unwrap(), community_context.0.id, ) .unwrap(); } }