Rewrite following activities

crates/api/src/community.rs

@@ -8,7 +8,13 @@ use lemmy_api_common::{
   get_local_user_view_from_jwt,
   is_mod_or_admin,
 };
-use lemmy_apub::{ActorType, CommunityType, UserType};
+use lemmy_apub::{
+  activities::following::{
+    follow::FollowCommunity as FollowCommunityApub,
+    undo::UndoFollowCommunity,
+  },
+  CommunityType,
+};
 use lemmy_db_queries::{
   source::{comment::Comment_, community::CommunityModerator_, post::Post_},
   Bannable,
@@ -74,15 +80,9 @@ impl Perform for FollowCommunity {
     } else if data.follow {
       // Dont actually add to the community followers here, because you need
       // to wait for the accept
-      local_user_view
-        .person
-        .send_follow(&community.actor_id(), context)
-        .await?;
+      FollowCommunityApub::send(&local_user_view.person, &community, context).await?;
     } else {
-      local_user_view
-        .person
-        .send_unfollow(&community.actor_id(), context)
-        .await?;
+      UndoFollowCommunity::send(&local_user_view.person, &community, context).await?;
       let unfollow = move |conn: &'_ _| CommunityFollower::unfollow(conn, &community_follower_form);
       if blocking(context.pool(), unfollow).await?.is_err() {
         return Err(ApiError::err("community_follower_already_exists").into());

crates/apub/src/activities/comment/create_or_update.rs

@@ -104,7 +104,7 @@ impl ActivityHandler for CreateOrUpdateComment {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/community/add_mod.rs

@@ -45,7 +45,7 @@ impl ActivityHandler for AddMod {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
@@ -71,7 +71,7 @@ impl ActivityHandler for AddMod {
       .await??;
     }
     if community.local {
-      let anybase = AnyBase::from_arbitrary_json(serde_json::to_string(self)?)?;
+      let anybase = AnyBase::from_arbitrary_json(serde_json::to_string(&self)?)?;
       community
         .send_announce(anybase, Some(self.object.clone()), context)
         .await?;

crates/apub/src/activities/community/announce.rs

@@ -110,7 +110,7 @@ impl ActivityHandler for AnnounceActivity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/community/block_user.rs

@@ -42,7 +42,7 @@ impl ActivityHandler for BlockUserFromCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/community/undo_block_user.rs

@@ -43,7 +43,7 @@ impl ActivityHandler for UndoBlockUserFromCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/community/update.rs

@@ -45,7 +45,7 @@ impl ActivityHandler for UpdateCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/deletion/delete.rs

@@ -74,7 +74,7 @@ impl ActivityHandler for DeletePostCommentOrCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/deletion/undo_delete.rs

@@ -62,7 +62,7 @@ impl ActivityHandler for UndoDeletePostCommentOrCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/following/accept.rs

@@ -1,12 +1,23 @@
 use crate::{
-  activities::{following::follow::FollowCommunity, verify_activity, verify_community},
+  activities::{
+    following::follow::FollowCommunity,
+    generate_activity_id,
+    verify_activity,
+    verify_community,
+  },
+  activity_queue::send_activity_new,
+  extensions::context::lemmy_context,
   fetcher::{community::get_or_fetch_and_upsert_community, person::get_or_fetch_and_upsert_person},
+  ActorType,
 };
 use activitystreams::activity::kind::AcceptType;
 use lemmy_api_common::blocking;
 use lemmy_apub_lib::{verify_urls_match, ActivityCommonFields, ActivityHandler};
-use lemmy_db_queries::Followable;
-use lemmy_db_schema::source::community::CommunityFollower;
+use lemmy_db_queries::{ApubObject, Followable};
+use lemmy_db_schema::source::{
+  community::{Community, CommunityFollower},
+  person::Person,
+};
 use lemmy_utils::LemmyError;
 use lemmy_websocket::LemmyContext;
 use url::Url;
@@ -22,6 +33,35 @@ pub struct AcceptFollowCommunity {
   common: ActivityCommonFields,
 }
 
+impl AcceptFollowCommunity {
+  pub async fn send(follow: FollowCommunity, context: &LemmyContext) -> Result<(), LemmyError> {
+    let community_id = follow.object.clone();
+    let community = blocking(context.pool(), move |conn| {
+      Community::read_from_apub_id(conn, &community_id.into())
+    })
+    .await??;
+    let person_id = follow.common.actor.clone();
+    let person = blocking(context.pool(), move |conn| {
+      Person::read_from_apub_id(conn, &person_id.into())
+    })
+    .await??;
+
+    let id = generate_activity_id(AcceptType::Accept)?;
+    let accept = AcceptFollowCommunity {
+      to: person.actor_id(),
+      object: follow,
+      kind: AcceptType::Accept,
+      common: ActivityCommonFields {
+        context: lemmy_context(),
+        id: id.clone(),
+        actor: community.actor_id(),
+        unparsed: Default::default(),
+      },
+    };
+    let inbox = vec![person.inbox_url.into()];
+    send_activity_new(context, &accept, &id, &community, inbox, true).await
+  }
+}
 /// Handle accepted follows
 #[async_trait::async_trait(?Send)]
 impl ActivityHandler for AcceptFollowCommunity {
@@ -39,7 +79,7 @@ impl ActivityHandler for AcceptFollowCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/following/follow.rs

@@ -1,18 +1,24 @@
 use crate::{
-  activities::{verify_activity, verify_person},
+  activities::{
+    following::accept::AcceptFollowCommunity,
+    generate_activity_id,
+    verify_activity,
+    verify_person,
+  },
+  activity_queue::send_activity_new,
+  extensions::context::lemmy_context,
   fetcher::{community::get_or_fetch_and_upsert_community, person::get_or_fetch_and_upsert_person},
-  CommunityType,
+  ActorType,
 };
-use activitystreams::{
-  activity::{kind::FollowType, Follow},
-  base::{AnyBase, ExtendsExt},
-};
-use anyhow::Context;
+use activitystreams::activity::kind::FollowType;
 use lemmy_api_common::blocking;
 use lemmy_apub_lib::{verify_urls_match, ActivityCommonFields, ActivityHandler};
 use lemmy_db_queries::Followable;
-use lemmy_db_schema::source::community::{CommunityFollower, CommunityFollowerForm};
-use lemmy_utils::{location_info, LemmyError};
+use lemmy_db_schema::source::{
+  community::{Community, CommunityFollower, CommunityFollowerForm},
+  person::Person,
+};
+use lemmy_utils::LemmyError;
 use lemmy_websocket::LemmyContext;
 use url::Url;
 
@@ -22,11 +28,44 @@ pub struct FollowCommunity {
   pub(in crate::activities::following) to: Url,
   pub(in crate::activities::following) object: Url,
   #[serde(rename = "type")]
-  kind: FollowType,
+  pub(in crate::activities::following) kind: FollowType,
   #[serde(flatten)]
   pub(in crate::activities::following) common: ActivityCommonFields,
 }
 
+impl FollowCommunity {
+  pub async fn send(
+    actor: &Person,
+    community: &Community,
+    context: &LemmyContext,
+  ) -> Result<(), LemmyError> {
+    let community_follower_form = CommunityFollowerForm {
+      community_id: community.id,
+      person_id: actor.id,
+      pending: true,
+    };
+    blocking(context.pool(), move |conn| {
+      CommunityFollower::follow(conn, &community_follower_form).ok()
+    })
+    .await?;
+
+    let id = generate_activity_id(FollowType::Follow)?;
+    let follow = FollowCommunity {
+      to: community.actor_id(),
+      object: community.actor_id(),
+      kind: FollowType::Follow,
+      common: ActivityCommonFields {
+        context: lemmy_context(),
+        id: id.clone(),
+        actor: actor.actor_id(),
+        unparsed: Default::default(),
+      },
+    };
+    let inbox = vec![community.inbox_url.clone().into()];
+    send_activity_new(context, &follow, &id, actor, inbox, true).await
+  }
+}
+
 #[async_trait::async_trait(?Send)]
 impl ActivityHandler for FollowCommunity {
   async fn verify(
@@ -41,7 +80,7 @@ impl ActivityHandler for FollowCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
@@ -61,10 +100,7 @@ impl ActivityHandler for FollowCommunity {
     })
     .await?;
 
-    // TODO: avoid the conversion and pass our own follow struct directly
-    let anybase = AnyBase::from_arbitrary_json(serde_json::to_string(self)?)?;
-    let anybase = Follow::from_any_base(anybase)?.context(location_info!())?;
-    community.send_accept_follow(anybase, context).await
+    AcceptFollowCommunity::send(self, context).await
   }
 
   fn common(&self) -> &ActivityCommonFields {

crates/apub/src/activities/following/undo.rs

@@ -1,12 +1,23 @@
 use crate::{
-  activities::{following::follow::FollowCommunity, verify_activity, verify_person},
+  activities::{
+    following::follow::FollowCommunity,
+    generate_activity_id,
+    verify_activity,
+    verify_person,
+  },
+  activity_queue::send_activity_new,
+  extensions::context::lemmy_context,
   fetcher::{community::get_or_fetch_and_upsert_community, person::get_or_fetch_and_upsert_person},
+  ActorType,
 };
-use activitystreams::activity::kind::UndoType;
+use activitystreams::activity::kind::{FollowType, UndoType};
 use lemmy_api_common::blocking;
 use lemmy_apub_lib::{verify_urls_match, ActivityCommonFields, ActivityHandler};
 use lemmy_db_queries::Followable;
-use lemmy_db_schema::source::community::{CommunityFollower, CommunityFollowerForm};
+use lemmy_db_schema::source::{
+  community::{Community, CommunityFollower, CommunityFollowerForm},
+  person::Person,
+};
 use lemmy_utils::LemmyError;
 use lemmy_websocket::LemmyContext;
 use url::Url;
@@ -22,6 +33,39 @@ pub struct UndoFollowCommunity {
   common: ActivityCommonFields,
 }
 
+impl UndoFollowCommunity {
+  pub async fn send(
+    actor: &Person,
+    community: &Community,
+    context: &LemmyContext,
+  ) -> Result<(), LemmyError> {
+    let id = generate_activity_id(UndoType::Undo)?;
+    let undo = UndoFollowCommunity {
+      to: community.actor_id(),
+      object: FollowCommunity {
+        to: community.actor_id(),
+        object: community.actor_id(),
+        kind: FollowType::Follow,
+        common: ActivityCommonFields {
+          context: lemmy_context(),
+          id: generate_activity_id(FollowType::Follow)?,
+          actor: actor.actor_id(),
+          unparsed: Default::default(),
+        },
+      },
+      kind: UndoType::Undo,
+      common: ActivityCommonFields {
+        context: lemmy_context(),
+        id: id.clone(),
+        actor: actor.actor_id(),
+        unparsed: Default::default(),
+      },
+    };
+    let inbox = vec![community.get_shared_inbox_or_inbox_url()];
+    send_activity_new(context, &undo, &id, actor, inbox, true).await
+  }
+}
+
 #[async_trait::async_trait(?Send)]
 impl ActivityHandler for UndoFollowCommunity {
   async fn verify(
@@ -38,7 +82,7 @@ impl ActivityHandler for UndoFollowCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/post/create_or_update.rs

@@ -114,7 +114,7 @@ impl ActivityHandler for CreateOrUpdatePost {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/private_message/create_or_update.rs

@@ -79,7 +79,7 @@ impl ActivityHandler for CreateOrUpdatePrivateMessage {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/private_message/delete.rs

@@ -33,7 +33,7 @@ impl ActivityHandler for DeletePrivateMessage {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     _request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/private_message/undo_delete.rs

@@ -44,7 +44,7 @@ impl ActivityHandler for UndoDeletePrivateMessage {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     _request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/removal/remove.rs

@@ -77,7 +77,7 @@ impl ActivityHandler for RemovePostCommentCommunityOrMod {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
@@ -115,7 +115,7 @@ impl ActivityHandler for RemovePostCommentCommunityOrMod {
         CommunityModerator::leave(conn, &form)
       })
       .await??;
-      let anybase = AnyBase::from_arbitrary_json(serde_json::to_string(self)?)?;
+      let anybase = AnyBase::from_arbitrary_json(serde_json::to_string(&self)?)?;
       community
         .send_announce(anybase, Some(self.object.clone()), context)
         .await?;

crates/apub/src/activities/removal/undo_remove.rs

@@ -62,7 +62,7 @@ impl ActivityHandler for UndoRemovePostCommentOrCommunity {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/send/community.rs

@@ -1,9 +1,9 @@
 use crate::{
   activities::generate_activity_id,
-  activity_queue::{send_activity_single_dest, send_to_community, send_to_community_followers},
+  activity_queue::{send_to_community, send_to_community_followers},
   check_is_apub_id_valid,
   extensions::context::lemmy_context,
-  fetcher::{get_or_fetch_and_upsert_actor, person::get_or_fetch_and_upsert_person},
+  fetcher::get_or_fetch_and_upsert_actor,
   generate_moderators_url,
   insert_activity,
   objects::ToApub,
@@ -13,7 +13,6 @@ use crate::{
 use activitystreams::{
   activity::{
     kind::{
-      AcceptType,
       AddType,
       AnnounceType,
       BlockType,
@@ -23,13 +22,10 @@ use activitystreams::{
       UndoType,
       UpdateType,
     },
-    Accept,
-    ActorAndObjectRefExt,
     Add,
     Announce,
     Block,
     Delete,
-    Follow,
     OptTargetRefExt,
     Remove,
     Undo,
@@ -81,31 +77,6 @@ impl CommunityType for Community {
     self.followers_url.clone().into()
   }
 
-  /// As a local community, accept the follow request from a remote person.
-  async fn send_accept_follow(
-    &self,
-    follow: Follow,
-    context: &LemmyContext,
-  ) -> Result<(), LemmyError> {
-    let actor_uri = follow
-      .actor()?
-      .as_single_xsd_any_uri()
-      .context(location_info!())?;
-    let person = get_or_fetch_and_upsert_person(actor_uri, context, &mut 0).await?;
-
-    let mut accept = Accept::new(
-      self.actor_id.to_owned().into_inner(),
-      follow.into_any_base()?,
-    );
-    accept
-      .set_many_contexts(lemmy_context())
-      .set_id(generate_activity_id(AcceptType::Accept)?)
-      .set_to(person.actor_id());
-
-    send_activity_single_dest(accept, self, person.inbox_url.into(), context).await?;
-    Ok(())
-  }
-
   /// If a remote community is updated by a local mod, send the updated info to the community's
   /// instance.
   async fn send_update(&self, mod_: Person, context: &LemmyContext) -> Result<(), LemmyError> {

crates/apub/src/activities/send/person.rs

@@ -1,27 +1,5 @@
-use crate::{
-  activities::generate_activity_id,
-  activity_queue::send_activity_single_dest,
-  extensions::context::lemmy_context,
-  ActorType,
-  UserType,
-};
-use activitystreams::{
-  activity::{
-    kind::{FollowType, UndoType},
-    Follow,
-    Undo,
-  },
-  base::{BaseExt, ExtendsExt},
-  object::ObjectExt,
-};
-use lemmy_api_common::blocking;
-use lemmy_db_queries::{ApubObject, Followable};
-use lemmy_db_schema::source::{
-  community::{Community, CommunityFollower, CommunityFollowerForm},
-  person::Person,
-};
-use lemmy_utils::LemmyError;
-use lemmy_websocket::LemmyContext;
+use crate::ActorType;
+use lemmy_db_schema::source::person::Person;
 use url::Url;
 
 impl ActorType for Person {
@@ -51,69 +29,3 @@ impl ActorType for Person {
       .into()
   }
 }
-
-#[async_trait::async_trait(?Send)]
-impl UserType for Person {
-  /// As a given local person, send out a follow request to a remote community.
-  async fn send_follow(
-    &self,
-    follow_actor_id: &Url,
-    context: &LemmyContext,
-  ) -> Result<(), LemmyError> {
-    let follow_actor_id = follow_actor_id.to_owned();
-    let community = blocking(context.pool(), move |conn| {
-      Community::read_from_apub_id(conn, &follow_actor_id.into())
-    })
-    .await??;
-
-    let community_follower_form = CommunityFollowerForm {
-      community_id: community.id,
-      person_id: self.id,
-      pending: true,
-    };
-    blocking(context.pool(), move |conn| {
-      CommunityFollower::follow(conn, &community_follower_form).ok()
-    })
-    .await?;
-
-    let mut follow = Follow::new(self.actor_id(), community.actor_id());
-    follow
-      .set_many_contexts(lemmy_context())
-      .set_id(generate_activity_id(FollowType::Follow)?)
-      .set_to(community.actor_id());
-
-    send_activity_single_dest(follow, self, community.inbox_url.into(), context).await?;
-    Ok(())
-  }
-
-  async fn send_unfollow(
-    &self,
-    follow_actor_id: &Url,
-    context: &LemmyContext,
-  ) -> Result<(), LemmyError> {
-    let follow_actor_id = follow_actor_id.to_owned();
-    let community = blocking(context.pool(), move |conn| {
-      Community::read_from_apub_id(conn, &follow_actor_id.into())
-    })
-    .await??;
-
-    let mut follow = Follow::new(self.actor_id(), community.actor_id());
-    follow
-      .set_many_contexts(lemmy_context())
-      .set_id(generate_activity_id(FollowType::Follow)?)
-      .set_to(community.actor_id());
-
-    // Undo that fake activity
-    let mut undo = Undo::new(
-      self.actor_id.to_owned().into_inner(),
-      follow.into_any_base()?,
-    );
-    undo
-      .set_many_contexts(lemmy_context())
-      .set_id(generate_activity_id(UndoType::Undo)?)
-      .set_to(community.actor_id());
-
-    send_activity_single_dest(undo, self, community.inbox_url.into(), context).await?;
-    Ok(())
-  }
-}

crates/apub/src/activities/voting/undo_vote.rs

@@ -101,7 +101,7 @@ impl ActivityHandler for UndoVote {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/activities/voting/vote.rs

@@ -113,7 +113,7 @@ impl ActivityHandler for Vote {
   }
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {

crates/apub/src/lib.rs

@@ -18,7 +18,6 @@ use crate::{
   fetcher::community::get_or_fetch_and_upsert_community,
 };
 use activitystreams::{
-  activity::Follow,
   actor,
   base::AnyBase,
   object::{ApObject, AsObject, ObjectExt},
@@ -185,11 +184,6 @@ pub trait ActorType {
 pub trait CommunityType {
   fn followers_url(&self) -> Url;
   async fn get_follower_inboxes(&self, pool: &DbPool) -> Result<Vec<Url>, LemmyError>;
-  async fn send_accept_follow(
-    &self,
-    follow: Follow,
-    context: &LemmyContext,
-  ) -> Result<(), LemmyError>;
 
   async fn send_update(&self, mod_: Person, context: &LemmyContext) -> Result<(), LemmyError>;
   async fn send_delete(&self, mod_: Person, context: &LemmyContext) -> Result<(), LemmyError>;
@@ -232,20 +226,6 @@ pub trait CommunityType {
   ) -> Result<(), LemmyError>;
 }
 
-#[async_trait::async_trait(?Send)]
-pub trait UserType {
-  async fn send_follow(
-    &self,
-    follow_actor_id: &Url,
-    context: &LemmyContext,
-  ) -> Result<(), LemmyError>;
-  async fn send_unfollow(
-    &self,
-    follow_actor_id: &Url,
-    context: &LemmyContext,
-  ) -> Result<(), LemmyError>;
-}
-
 pub enum EndpointType {
   Community,
   Person,

crates/apub_lib/src/lib.rs

@@ -39,7 +39,7 @@ pub trait ActivityHandler {
   ) -> Result<(), LemmyError>;
 
   async fn receive(
-    &self,
+    self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError>;

crates/apub_lib_derive/src/lib.rs

@@ -92,7 +92,7 @@ pub fn derive_activity_handler(input: proc_macro::TokenStream) -> proc_macro::To
             }
           }
           async fn receive(
-            &self,
+            self,
             context: &LemmyContext,
             request_counter: &mut i32,
           ) -> Result<(), LemmyError> {