fix post/comment create/update, rework voting

crates/apub/src/fetcher/objects.rs

@@ -1,4 +1,10 @@
-use crate::{fetcher::fetch::fetch_remote_object, objects::FromApub, NoteExt, PageExt};
+use crate::{
+  fetcher::fetch::fetch_remote_object,
+  objects::FromApub,
+  NoteExt,
+  PageExt,
+  PostOrComment,
+};
 use anyhow::anyhow;
 use diesel::result::Error::NotFound;
 use lemmy_api_common::blocking;
@@ -89,3 +95,19 @@ pub async fn get_or_fetch_and_insert_comment(
     Err(e) => Err(e.into()),
   }
 }
+
+pub async fn get_or_fetch_and_insert_post_or_comment(
+  ap_id: &Url,
+  context: &LemmyContext,
+  recursion_counter: &mut i32,
+) -> Result<PostOrComment, LemmyError> {
+  Ok(
+    match get_or_fetch_and_insert_post(ap_id, context, recursion_counter).await {
+      Ok(p) => PostOrComment::Post(Box::new(p)),
+      Err(_) => {
+        let c = get_or_fetch_and_insert_comment(ap_id, context, recursion_counter).await?;
+        PostOrComment::Comment(Box::new(c))
+      }
+    },
+  )
+}

crates/apub/src/objects/comment.rs

@@ -123,18 +123,8 @@ impl FromApub for Comment {
     let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
     check_object_for_community_or_site_ban(note, post.community_id, context, request_counter)
       .await?;
-    if post.locked {
-      // This is not very efficient because a comment gets inserted just to be deleted right
-      // afterwards, but it seems to be the easiest way to implement it.
-      blocking(context.pool(), move |conn| {
-        Comment::delete(conn, comment.id)
-      })
-      .await??;
-      Err(anyhow!("Post is locked").into())
-    } else {
     Ok(comment)
   }
-  }
 }
 
 #[async_trait::async_trait(?Send)]
@@ -174,6 +164,9 @@ impl FromApubToForm<NoteExt> for CommentForm {
       request_counter,
     ))
     .await?;
+    if post.locked {
+      return Err(anyhow!("Post is locked").into());
+    }
 
     // The 2nd item, if it exists, is the parent comment apub_id
     // For deeply nested comments, FromApub automatically gets called recursively

crates/apub_receive/src/activities/comment/create.rs

@@ -1,7 +1,16 @@
-use crate::activities::comment::{get_notif_recipients, send_websocket_message};
+use crate::activities::{
+  comment::{get_notif_recipients, send_websocket_message},
+  verify_activity,
+  verify_person_in_community,
+};
 use activitystreams::{activity::kind::CreateType, base::BaseExt};
-use lemmy_apub::{check_is_apub_id_valid, objects::FromApub, NoteExt};
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
+use lemmy_apub::{objects::FromApub, NoteExt};
+use lemmy_apub_lib::{
+  verify_domains_match_opt,
+  ActivityCommonFields,
+  ActivityHandlerNew,
+  PublicUrl,
+};
 use lemmy_db_schema::source::comment::Comment;
 use lemmy_utils::LemmyError;
 use lemmy_websocket::{LemmyContext, UserOperationCrud};
@@ -21,10 +30,21 @@ pub struct CreateComment {
 
 #[async_trait::async_trait(?Send)]
 impl ActivityHandlerNew for CreateComment {
-  async fn verify(&self, _context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    self.object.id(self.common.actor.as_str())?;
-    check_is_apub_id_valid(&self.common.actor, false)
+  async fn verify(
+    &self,
+    context: &LemmyContext,
+    request_counter: &mut i32,
+  ) -> Result<(), LemmyError> {
+    dbg!("1");
+    verify_activity(self.common())?;
+    dbg!("2");
+    verify_person_in_community(&self.common.actor, &self.cc, context, request_counter).await?;
+    dbg!("3");
+    verify_domains_match_opt(&self.common.actor, self.object.id_unchecked())?;
+    dbg!("4");
+    // TODO: should add a check that the correct community is in cc (probably needs changes to
+    //       comment deserialization)
+    Ok(())
   }
 
   async fn receive(
@@ -32,6 +52,7 @@ impl ActivityHandlerNew for CreateComment {
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
+    dbg!("5");
     let comment = Comment::from_apub(
       &self.object,
       context,
@@ -40,6 +61,7 @@ impl ActivityHandlerNew for CreateComment {
       false,
     )
     .await?;
+    dbg!("6");
     let recipients =
       get_notif_recipients(&self.common.actor, &comment, context, request_counter).await?;
     send_websocket_message(

crates/apub_receive/src/activities/comment/like.rs

@@ -1,46 +0,0 @@
-use crate::activities::comment::like_or_dislike_comment;
-use activitystreams::activity::kind::LikeType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
-use lemmy_utils::LemmyError;
-use lemmy_websocket::LemmyContext;
-use url::Url;
-
-#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct LikeComment {
-  to: PublicUrl,
-  pub(in crate::activities::comment) object: Url,
-  cc: [Url; 1],
-  #[serde(rename = "type")]
-  kind: LikeType,
-  #[serde(flatten)]
-  common: ActivityCommonFields,
-}
-
-#[async_trait::async_trait(?Send)]
-impl ActivityHandlerNew for LikeComment {
-  async fn verify(&self, _context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    check_is_apub_id_valid(&self.common.actor, false)
-  }
-
-  async fn receive(
-    &self,
-    context: &LemmyContext,
-    request_counter: &mut i32,
-  ) -> Result<(), LemmyError> {
-    like_or_dislike_comment(
-      1,
-      &self.common.actor,
-      &self.object,
-      context,
-      request_counter,
-    )
-    .await
-  }
-
-  fn common(&self) -> &ActivityCommonFields {
-    &self.common
-  }
-}

crates/apub_receive/src/activities/comment/mod.rs

@@ -1,30 +1,20 @@
 use lemmy_api_common::{blocking, comment::CommentResponse, send_local_notifs};
-use lemmy_apub::fetcher::{
-  objects::get_or_fetch_and_insert_comment,
-  person::get_or_fetch_and_upsert_person,
-};
-use lemmy_db_queries::{Crud, Likeable};
+use lemmy_apub::fetcher::person::get_or_fetch_and_upsert_person;
+use lemmy_db_queries::Crud;
 use lemmy_db_schema::{
-  source::{
-    comment::{Comment, CommentLike, CommentLikeForm},
-    post::Post,
-  },
+  source::{comment::Comment, post::Post},
   CommentId,
   LocalUserId,
 };
 use lemmy_db_views::comment_view::CommentView;
 use lemmy_utils::{utils::scrape_text_for_mentions, LemmyError};
-use lemmy_websocket::{messages::SendComment, LemmyContext, UserOperation};
+use lemmy_websocket::{messages::SendComment, LemmyContext};
 use url::Url;
 
 pub mod create;
 pub mod delete;
-pub mod dislike;
-pub mod like;
 pub mod remove;
 pub mod undo_delete;
-pub mod undo_dislike;
-pub mod undo_like;
 pub mod undo_remove;
 pub mod update;
 
@@ -49,7 +39,9 @@ async fn get_notif_recipients(
 
 // TODO: in many call sites we are setting an empty vec for recipient_ids, we should get the actual
 //       recipient actors from somewhere
-async fn send_websocket_message<OP: ToString + Send + lemmy_websocket::OperationType + 'static>(
+pub(crate) async fn send_websocket_message<
+  OP: ToString + Send + lemmy_websocket::OperationType + 'static,
+>(
   comment_id: CommentId,
   recipient_ids: Vec<LocalUserId>,
   op: OP,
@@ -75,61 +67,3 @@ async fn send_websocket_message<OP: ToString + Send + lemmy_websocket::Operation
 
   Ok(())
 }
-
-async fn like_or_dislike_comment(
-  score: i16,
-  actor: &Url,
-  object: &Url,
-  context: &LemmyContext,
-  request_counter: &mut i32,
-) -> Result<(), LemmyError> {
-  let actor = get_or_fetch_and_upsert_person(actor, context, request_counter).await?;
-  let comment = get_or_fetch_and_insert_comment(object, context, request_counter).await?;
-
-  let comment_id = comment.id;
-  let like_form = CommentLikeForm {
-    comment_id,
-    post_id: comment.post_id,
-    person_id: actor.id,
-    score,
-  };
-  let person_id = actor.id;
-  blocking(context.pool(), move |conn| {
-    CommentLike::remove(conn, person_id, comment_id)?;
-    CommentLike::like(conn, &like_form)
-  })
-  .await??;
-
-  send_websocket_message(
-    comment_id,
-    vec![],
-    UserOperation::CreateCommentLike,
-    context,
-  )
-  .await
-}
-
-async fn undo_like_or_dislike_comment(
-  actor: &Url,
-  object: &Url,
-  context: &LemmyContext,
-  request_counter: &mut i32,
-) -> Result<(), LemmyError> {
-  let actor = get_or_fetch_and_upsert_person(actor, context, request_counter).await?;
-  let comment = get_or_fetch_and_insert_comment(object, context, request_counter).await?;
-
-  let comment_id = comment.id;
-  let person_id = actor.id;
-  blocking(context.pool(), move |conn| {
-    CommentLike::remove(conn, person_id, comment_id)
-  })
-  .await??;
-
-  send_websocket_message(
-    comment.id,
-    vec![],
-    UserOperation::CreateCommentLike,
-    context,
-  )
-  .await
-}

crates/apub_receive/src/activities/comment/remove.rs

@@ -26,7 +26,7 @@ impl ActivityHandlerNew for RemoveComment {
   async fn verify(&self, context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
     verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
     check_is_apub_id_valid(&self.common.actor, false)?;
-    verify_mod_action(self.common.actor.clone(), self.cc[0].clone(), context).await
+    verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await
   }
 
   async fn receive(

crates/apub_receive/src/activities/comment/undo_dislike.rs

@@ -1,51 +0,0 @@
-use crate::activities::comment::{dislike::DislikeComment, undo_like_or_dislike_comment};
-use activitystreams::activity::kind::UndoType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
-use lemmy_utils::LemmyError;
-use lemmy_websocket::LemmyContext;
-use url::Url;
-
-#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct UndoDislikeComment {
-  to: PublicUrl,
-  object: DislikeComment,
-  cc: [Url; 1],
-  #[serde(rename = "type")]
-  kind: UndoType,
-  #[serde(flatten)]
-  common: ActivityCommonFields,
-}
-
-#[async_trait::async_trait(?Send)]
-impl ActivityHandlerNew for UndoDislikeComment {
-  async fn verify(
-    &self,
-    context: &LemmyContext,
-    request_counter: &mut i32,
-  ) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    verify_domains_match(&self.common.actor, &self.object.object)?;
-    check_is_apub_id_valid(&self.common.actor, false)?;
-    self.object.verify(context, request_counter).await
-  }
-
-  async fn receive(
-    &self,
-    context: &LemmyContext,
-    request_counter: &mut i32,
-  ) -> Result<(), LemmyError> {
-    undo_like_or_dislike_comment(
-      &self.common.actor,
-      &self.object.object,
-      context,
-      request_counter,
-    )
-    .await
-  }
-
-  fn common(&self) -> &ActivityCommonFields {
-    &self.common
-  }
-}

crates/apub_receive/src/activities/comment/undo_remove.rs

@@ -33,7 +33,7 @@ impl ActivityHandlerNew for UndoRemoveComment {
   ) -> Result<(), LemmyError> {
     verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
     check_is_apub_id_valid(&self.common.actor, false)?;
-    verify_mod_action(self.common.actor.clone(), self.cc[0].clone(), context).await?;
+    verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await?;
     self.object.verify(context, request_counter).await
   }
 

crates/apub_receive/src/activities/comment/update.rs

@@ -1,7 +1,16 @@
-use crate::activities::comment::{get_notif_recipients, send_websocket_message};
+use crate::activities::{
+  comment::{get_notif_recipients, send_websocket_message},
+  verify_activity,
+  verify_person_in_community,
+};
 use activitystreams::{activity::kind::UpdateType, base::BaseExt};
-use lemmy_apub::{check_is_apub_id_valid, objects::FromApub, NoteExt};
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
+use lemmy_apub::{objects::FromApub, NoteExt};
+use lemmy_apub_lib::{
+  verify_domains_match_opt,
+  ActivityCommonFields,
+  ActivityHandlerNew,
+  PublicUrl,
+};
 use lemmy_db_schema::source::comment::Comment;
 use lemmy_utils::LemmyError;
 use lemmy_websocket::{LemmyContext, UserOperationCrud};
@@ -21,10 +30,15 @@ pub struct UpdateComment {
 
 #[async_trait::async_trait(?Send)]
 impl ActivityHandlerNew for UpdateComment {
-  async fn verify(&self, _context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    self.object.id(self.common.actor.as_str())?;
-    check_is_apub_id_valid(&self.common.actor, false)
+  async fn verify(
+    &self,
+    context: &LemmyContext,
+    request_counter: &mut i32,
+  ) -> Result<(), LemmyError> {
+    verify_activity(self.common())?;
+    verify_person_in_community(&self.common.actor, &self.cc, context, request_counter).await?;
+    verify_domains_match_opt(&self.common.actor, self.object.id_unchecked())?;
+    Ok(())
   }
 
   async fn receive(

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

@@ -32,7 +32,7 @@ impl ActivityHandlerNew for AddMod {
     verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
     verify_domains_match(&self.target, &self.cc[0])?;
     check_is_apub_id_valid(&self.common.actor, false)?;
-    verify_mod_action(self.common.actor.clone(), self.cc[0].clone(), context).await?;
+    verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await?;
     verify_add_remove_moderator_target(&self.target, self.cc[0].clone())
   }
 

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

@@ -1,14 +1,17 @@
+use activitystreams::activity::kind::AnnounceType;
+use lemmy_apub_lib::{ActivityCommonFields, ActivityHandlerNew, PublicUrl};
+use lemmy_utils::LemmyError;
+use lemmy_websocket::LemmyContext;
+use serde::{Deserialize, Serialize};
+use url::Url;
+
 use crate::{
   activities::{
     comment::{
       create::CreateComment,
       delete::DeleteComment,
-      dislike::DislikeComment,
-      like::LikeComment,
       remove::RemoveComment,
       undo_delete::UndoDeleteComment,
-      undo_dislike::UndoDislikeComment,
-      undo_like::UndoLikeComment,
       undo_remove::UndoRemoveComment,
       update::UpdateComment,
     },
@@ -16,48 +19,42 @@ use crate::{
     post::{
       create::CreatePost,
       delete::DeletePost,
-      dislike::DislikePost,
-      like::LikePost,
       remove::RemovePost,
       undo_delete::UndoDeletePost,
-      undo_dislike::UndoDislikePost,
-      undo_like::UndoLikePost,
       undo_remove::UndoRemovePost,
       update::UpdatePost,
     },
+    post_or_comment::{
+      dislike::DislikePostOrComment,
+      like::LikePostOrComment,
+      undo_dislike::UndoDislikePostOrComment,
+      undo_like::UndoLikePostOrComment,
+    },
+    verify_activity,
+    verify_community,
   },
   http::is_activity_already_known,
 };
-use activitystreams::activity::kind::RemoveType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
-use lemmy_utils::LemmyError;
-use lemmy_websocket::LemmyContext;
-use serde::{Deserialize, Serialize};
-use url::Url;
 
 #[derive(Clone, Debug, Deserialize, Serialize, ActivityHandlerNew)]
+#[serde(untagged)]
 pub enum AnnouncableActivities {
   CreateComment(CreateComment),
   UpdateComment(UpdateComment),
-  LikeComment(LikeComment),
-  DislikeComment(DislikeComment),
-  UndoLikeComment(UndoLikeComment),
-  UndoDislikeComment(UndoDislikeComment),
   DeleteComment(DeleteComment),
   UndoDeleteComment(UndoDeleteComment),
   RemoveComment(RemoveComment),
   UndoRemoveComment(UndoRemoveComment),
   CreatePost(CreatePost),
   UpdatePost(UpdatePost),
-  LikePost(LikePost),
-  DislikePost(DislikePost),
   DeletePost(DeletePost),
   UndoDeletePost(UndoDeletePost),
   RemovePost(RemovePost),
   UndoRemovePost(UndoRemovePost),
-  UndoLikePost(UndoLikePost),
-  UndoDislikePost(UndoDislikePost),
+  LikePostOrComment(LikePostOrComment),
+  DislikePostOrComment(DislikePostOrComment),
+  UndoLikePostOrComment(UndoLikePostOrComment),
+  UndoDislikePostOrComment(UndoDislikePostOrComment),
   BlockUserFromCommunity(BlockUserFromCommunity),
   UndoBlockUserFromCommunity(UndoBlockUserFromCommunity),
 }
@@ -69,7 +66,7 @@ pub struct AnnounceActivity {
   object: AnnouncableActivities,
   cc: [Url; 1],
   #[serde(rename = "type")]
-  kind: RemoveType,
+  kind: AnnounceType,
   #[serde(flatten)]
   common: ActivityCommonFields,
 }
@@ -81,10 +78,9 @@ impl ActivityHandlerNew for AnnounceActivity {
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    verify_domains_match(&self.common.actor, &self.cc[0])?;
-    check_is_apub_id_valid(&self.common.actor, false)?;
-    self.object.verify(context, request_counter).await
+    verify_activity(self.common())?;
+    verify_community(&self.common.actor, context, request_counter).await?;
+    Ok(())
   }
 
   async fn receive(

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

@@ -34,7 +34,7 @@ impl ActivityHandlerNew for BlockUserFromCommunity {
   async fn verify(&self, context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
     verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
     check_is_apub_id_valid(&self.common.actor, false)?;
-    verify_mod_action(self.common.actor.clone(), self.cc[0].clone(), context).await
+    verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await
   }
 
   async fn receive(

crates/apub_receive/src/activities/community/remove_mod.rs

@@ -32,7 +32,7 @@ impl ActivityHandlerNew for RemoveMod {
     verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
     verify_domains_match(&self.target, &self.cc[0])?;
     check_is_apub_id_valid(&self.common.actor, false)?;
-    verify_mod_action(self.common.actor.clone(), self.cc[0].clone(), context).await?;
+    verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await?;
     verify_add_remove_moderator_target(&self.target, self.cc[0].clone())
   }
 

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

@@ -33,7 +33,7 @@ impl ActivityHandlerNew for UndoBlockUserFromCommunity {
   ) -> Result<(), LemmyError> {
     verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
     check_is_apub_id_valid(&self.common.actor, false)?;
-    verify_mod_action(self.common.actor.clone(), self.cc[0].clone(), context).await?;
+    verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await?;
     self.object.verify(context, request_counter).await
   }
 

crates/apub_receive/src/activities/mod.rs

@@ -1,12 +1,16 @@
 use anyhow::anyhow;
 use lemmy_api_common::blocking;
 use lemmy_apub::{
+  check_community_or_site_ban,
   check_is_apub_id_valid,
   fetcher::{community::get_or_fetch_and_upsert_community, person::get_or_fetch_and_upsert_person},
 };
 use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields};
 use lemmy_db_queries::ApubObject;
-use lemmy_db_schema::source::{community::Community, person::Person};
+use lemmy_db_schema::{
+  source::{community::Community, person::Person},
+  DbUrl,
+};
 use lemmy_db_views_actor::community_view::CommunityView;
 use lemmy_utils::LemmyError;
 use lemmy_websocket::LemmyContext;
@@ -16,6 +20,7 @@ pub mod comment;
 pub mod community;
 pub mod following;
 pub mod post;
+pub mod post_or_comment;
 pub mod private_message;
 
 /// Checks that the specified Url actually identifies a Person (by fetching it), and that the person
@@ -32,6 +37,29 @@ async fn verify_person(
   Ok(())
 }
 
+/// Fetches the person and community to verify their type, then checks if person is banned from site
+/// or community.
+async fn verify_person_in_community(
+  person_id: &Url,
+  cc: &[Url],
+  context: &LemmyContext,
+  request_counter: &mut i32,
+) -> Result<Community, LemmyError> {
+  let person = get_or_fetch_and_upsert_person(person_id, context, request_counter).await?;
+  let mut cc_iter = cc.iter();
+  let community: Community = loop {
+    if let Some(cid) = cc_iter.next() {
+      if let Ok(c) = get_or_fetch_and_upsert_community(cid, context, request_counter).await {
+        break c;
+      }
+    } else {
+      return Err(anyhow!("No community found in cc").into());
+    }
+  };
+  check_community_or_site_ban(&person, community.id, context.pool()).await?;
+  Ok(community)
+}
+
 /// Simply check that the url actually refers to a valid group.
 async fn verify_community(
   community_id: &Url,
@@ -49,7 +77,7 @@ fn verify_activity(common: &ActivityCommonFields) -> Result<(), LemmyError> {
 }
 
 async fn verify_mod_action(
-  actor_id: Url,
+  actor_id: &Url,
   activity_cc: Url,
   context: &LemmyContext,
 ) -> Result<(), LemmyError> {
@@ -59,8 +87,9 @@ async fn verify_mod_action(
   .await??;
 
   if community.local {
+    let actor_id: DbUrl = actor_id.clone().into();
     let actor = blocking(context.pool(), move |conn| {
-      Person::read_from_apub_id(conn, &actor_id.into())
+      Person::read_from_apub_id(conn, &actor_id)
     })
     .await??;
 

crates/apub_receive/src/activities/post/create.rs

@@ -1,13 +1,21 @@
-use crate::activities::post::send_websocket_message;
+use crate::activities::{
+  post::send_websocket_message,
+  verify_activity,
+  verify_person_in_community,
+};
 use activitystreams::{activity::kind::CreateType, base::BaseExt};
 use lemmy_apub::{
-  check_is_apub_id_valid,
   fetcher::person::get_or_fetch_and_upsert_person,
   objects::FromApub,
   ActorType,
   PageExt,
 };
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
+use lemmy_apub_lib::{
+  verify_domains_match_opt,
+  ActivityCommonFields,
+  ActivityHandlerNew,
+  PublicUrl,
+};
 use lemmy_db_schema::source::post::Post;
 use lemmy_utils::LemmyError;
 use lemmy_websocket::{LemmyContext, UserOperationCrud};
@@ -27,10 +35,15 @@ pub struct CreatePost {
 
 #[async_trait::async_trait(?Send)]
 impl ActivityHandlerNew for CreatePost {
-  async fn verify(&self, _context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
-    verify_domains_match(self.common.id_unchecked(), &self.common.actor)?;
-    self.object.id(self.common.actor.as_str())?;
-    check_is_apub_id_valid(&self.common.actor, false)
+  async fn verify(
+    &self,
+    context: &LemmyContext,
+    request_counter: &mut i32,
+  ) -> Result<(), LemmyError> {
+    verify_activity(self.common())?;
+    verify_person_in_community(&self.common.actor, &self.cc, context, request_counter).await?;
+    verify_domains_match_opt(&self.common.actor, self.object.id_unchecked())?;
+    Ok(())
   }
 
   async fn receive(

crates/apub_receive/src/activities/post/dislike.rs

@@ -1,46 +0,0 @@
-use crate::activities::post::like_or_dislike_post;
-use activitystreams::activity::kind::DislikeType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
-use lemmy_utils::LemmyError;
-use lemmy_websocket::LemmyContext;
-use url::Url;
-
-#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct DislikePost {
-  to: PublicUrl,
-  pub(in crate::activities::post) object: Url,
-  cc: [Url; 1],
-  #[serde(rename = "type")]
-  kind: DislikeType,
-  #[serde(flatten)]
-  common: ActivityCommonFields,
-}
-
-#[async_trait::async_trait(?Send)]
-impl ActivityHandlerNew for DislikePost {
-  async fn verify(&self, _context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    check_is_apub_id_valid(&self.common.actor, false)
-  }
-
-  async fn receive(
-    &self,
-    context: &LemmyContext,
-    request_counter: &mut i32,
-  ) -> Result<(), LemmyError> {
-    like_or_dislike_post(
-      -1,
-      &self.common.actor,
-      &self.object,
-      context,
-      request_counter,
-    )
-    .await
-  }
-
-  fn common(&self) -> &ActivityCommonFields {
-    &self.common
-  }
-}

crates/apub_receive/src/activities/post/mod.rs

@@ -1,30 +1,19 @@
 use lemmy_api_common::{blocking, post::PostResponse};
-use lemmy_apub::fetcher::{
-  objects::get_or_fetch_and_insert_post,
-  person::get_or_fetch_and_upsert_person,
-};
-use lemmy_db_queries::Likeable;
-use lemmy_db_schema::{
-  source::post::{PostLike, PostLikeForm},
-  PostId,
-};
+use lemmy_db_schema::PostId;
 use lemmy_db_views::post_view::PostView;
 use lemmy_utils::LemmyError;
-use lemmy_websocket::{messages::SendPost, LemmyContext, UserOperation};
-use url::Url;
+use lemmy_websocket::{messages::SendPost, LemmyContext};
 
 pub mod create;
 pub mod delete;
-pub mod dislike;
-pub mod like;
 pub mod remove;
 pub mod undo_delete;
-pub mod undo_dislike;
-pub mod undo_like;
 pub mod undo_remove;
 pub mod update;
 
-async fn send_websocket_message<OP: ToString + Send + lemmy_websocket::OperationType + 'static>(
+pub(crate) async fn send_websocket_message<
+  OP: ToString + Send + lemmy_websocket::OperationType + 'static,
+>(
   post_id: PostId,
   op: OP,
   context: &LemmyContext,
@@ -44,47 +33,3 @@ async fn send_websocket_message<OP: ToString + Send + lemmy_websocket::Operation
 
   Ok(())
 }
-
-async fn like_or_dislike_post(
-  score: i16,
-  actor: &Url,
-  object: &Url,
-  context: &LemmyContext,
-  request_counter: &mut i32,
-) -> Result<(), LemmyError> {
-  let actor = get_or_fetch_and_upsert_person(actor, context, request_counter).await?;
-  let post = get_or_fetch_and_insert_post(object, context, request_counter).await?;
-
-  let post_id = post.id;
-  let like_form = PostLikeForm {
-    post_id: post.id,
-    person_id: actor.id,
-    score,
-  };
-  let person_id = actor.id;
-  blocking(context.pool(), move |conn| {
-    PostLike::remove(conn, person_id, post_id)?;
-    PostLike::like(conn, &like_form)
-  })
-  .await??;
-
-  send_websocket_message(post.id, UserOperation::CreatePostLike, context).await
-}
-
-async fn undo_like_or_dislike_post(
-  actor: &Url,
-  object: &Url,
-  context: &LemmyContext,
-  request_counter: &mut i32,
-) -> Result<(), LemmyError> {
-  let actor = get_or_fetch_and_upsert_person(actor, context, request_counter).await?;
-  let post = get_or_fetch_and_insert_post(object, context, request_counter).await?;
-
-  let post_id = post.id;
-  let person_id = actor.id;
-  blocking(context.pool(), move |conn| {
-    PostLike::remove(conn, person_id, post_id)
-  })
-  .await??;
-  send_websocket_message(post.id, UserOperation::CreatePostLike, context).await
-}

crates/apub_receive/src/activities/post/remove.rs

@@ -26,7 +26,7 @@ impl ActivityHandlerNew for RemovePost {
   async fn verify(&self, context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
     verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
     check_is_apub_id_valid(&self.common.actor, false)?;
-    verify_mod_action(self.common.actor.clone(), self.cc[0].clone(), context).await
+    verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await
   }
 
   async fn receive(

crates/apub_receive/src/activities/post/undo_like.rs

@@ -1,50 +0,0 @@
-use crate::activities::post::{like::LikePost, undo_like_or_dislike_post};
-use activitystreams::activity::kind::UndoType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
-use lemmy_utils::LemmyError;
-use lemmy_websocket::LemmyContext;
-use url::Url;
-
-#[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
-#[serde(rename_all = "camelCase")]
-pub struct UndoLikePost {
-  to: PublicUrl,
-  object: LikePost,
-  cc: [Url; 1],
-  #[serde(rename = "type")]
-  kind: UndoType,
-  #[serde(flatten)]
-  common: ActivityCommonFields,
-}
-#[async_trait::async_trait(?Send)]
-impl ActivityHandlerNew for UndoLikePost {
-  async fn verify(
-    &self,
-    context: &LemmyContext,
-    request_counter: &mut i32,
-  ) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    verify_domains_match(&self.common.actor, &self.object.object)?;
-    check_is_apub_id_valid(&self.common.actor, false)?;
-    self.object.verify(context, request_counter).await
-  }
-
-  async fn receive(
-    &self,
-    context: &LemmyContext,
-    request_counter: &mut i32,
-  ) -> Result<(), LemmyError> {
-    undo_like_or_dislike_post(
-      &self.common.actor,
-      &self.object.object,
-      context,
-      request_counter,
-    )
-    .await
-  }
-
-  fn common(&self) -> &ActivityCommonFields {
-    &self.common
-  }
-}

crates/apub_receive/src/activities/post/undo_remove.rs

@@ -33,7 +33,7 @@ impl ActivityHandlerNew for UndoRemovePost {
   ) -> Result<(), LemmyError> {
     verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
     check_is_apub_id_valid(&self.common.actor, false)?;
-    verify_mod_action(self.common.actor.clone(), self.cc[0].clone(), context).await?;
+    verify_mod_action(&self.common.actor, self.cc[0].clone(), context).await?;
     self.object.verify(context, request_counter).await
   }
 

crates/apub_receive/src/activities/post/update.rs

@@ -1,19 +1,26 @@
-use crate::activities::post::send_websocket_message;
+use crate::activities::{
+  post::send_websocket_message,
+  verify_activity,
+  verify_mod_action,
+  verify_person_in_community,
+};
 use activitystreams::{activity::kind::UpdateType, base::BaseExt};
 use anyhow::Context;
 use lemmy_api_common::blocking;
 use lemmy_apub::{
-  check_is_apub_id_valid,
   objects::{FromApub, FromApubToForm},
+  ActorType,
   PageExt,
 };
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
-use lemmy_db_queries::{ApubObject, Crud};
+use lemmy_apub_lib::{
+  verify_domains_match_opt,
+  ActivityCommonFields,
+  ActivityHandlerNew,
+  PublicUrl,
+};
+use lemmy_db_queries::ApubObject;
 use lemmy_db_schema::{
-  source::{
-    community::Community,
-    post::{Post, PostForm},
-  },
+  source::post::{Post, PostForm},
   DbUrl,
 };
 use lemmy_utils::{location_info, LemmyError};
@@ -34,17 +41,16 @@ pub struct UpdatePost {
 
 #[async_trait::async_trait(?Send)]
 impl ActivityHandlerNew for UpdatePost {
-  async fn verify(&self, _context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    self.object.id(self.common.actor.as_str())?;
-    check_is_apub_id_valid(&self.common.actor, false)
-  }
-
-  async fn receive(
+  async fn verify(
     &self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
+    verify_activity(self.common())?;
+    let community =
+      verify_person_in_community(&self.common.actor, &self.cc, context, request_counter).await?;
+    verify_domains_match_opt(&self.common.actor, self.object.id_unchecked())?;
+
     let temp_post = PostForm::from_apub(
       &self.object,
       context,
@@ -53,36 +59,32 @@ impl ActivityHandlerNew for UpdatePost {
       false,
     )
     .await?;
-
     let post_id: DbUrl = temp_post.ap_id.context(location_info!())?;
     let old_post = blocking(context.pool(), move |conn| {
       Post::read_from_apub_id(conn, &post_id)
     })
     .await??;
-
-    // If sticked or locked state was changed, make sure the actor is a mod
     let stickied = temp_post.stickied.context(location_info!())?;
     let locked = temp_post.locked.context(location_info!())?;
-    let mut mod_action_allowed = false;
     if (stickied != old_post.stickied) || (locked != old_post.locked) {
-      let community = blocking(context.pool(), move |conn| {
-        Community::read(conn, old_post.community_id)
-      })
-      .await??;
-      // Only check mod status if the community is local, otherwise we trust that it was sent correctly.
-      if community.local {
-        // TODO
-        //verify_mod_activity(&update, announce, &community, context).await?;
-      }
-      mod_action_allowed = true;
+      verify_mod_action(&self.common.actor, community.actor_id(), context).await?;
     }
 
+    Ok(())
+  }
+
+  async fn receive(
+    &self,
+    context: &LemmyContext,
+    request_counter: &mut i32,
+  ) -> Result<(), LemmyError> {
     let post = Post::from_apub(
       &self.object,
       context,
       self.common.actor.clone(),
       request_counter,
-      mod_action_allowed,
+      // TODO: we already check here if the mod action is valid, can remove that check param
+      true,
     )
     .await?;
 

crates/apub_receive/src/activities/post_or_comment/dislike.rs

@@ -1,16 +1,19 @@
-use crate::activities::comment::like_or_dislike_comment;
+use crate::activities::{
+  post_or_comment::voting::receive_like_or_dislike,
+  verify_activity,
+  verify_person_in_community,
+};
 use activitystreams::activity::kind::DislikeType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
+use lemmy_apub_lib::{ActivityCommonFields, ActivityHandlerNew, PublicUrl};
 use lemmy_utils::LemmyError;
 use lemmy_websocket::LemmyContext;
 use url::Url;
 
 #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
 #[serde(rename_all = "camelCase")]
-pub struct DislikeComment {
+pub struct DislikePostOrComment {
   to: PublicUrl,
-  pub(in crate::activities::comment) object: Url,
+  pub(in crate::activities) object: Url,
   cc: [Url; 1],
   #[serde(rename = "type")]
   kind: DislikeType,
@@ -19,10 +22,15 @@ pub struct DislikeComment {
 }
 
 #[async_trait::async_trait(?Send)]
-impl ActivityHandlerNew for DislikeComment {
-  async fn verify(&self, _context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    check_is_apub_id_valid(&self.common.actor, false)
+impl ActivityHandlerNew for DislikePostOrComment {
+  async fn verify(
+    &self,
+    context: &LemmyContext,
+    request_counter: &mut i32,
+  ) -> Result<(), LemmyError> {
+    verify_activity(self.common())?;
+    verify_person_in_community(&self.common.actor, &self.cc, context, request_counter).await?;
+    Ok(())
   }
 
   async fn receive(
@@ -30,7 +38,7 @@ impl ActivityHandlerNew for DislikeComment {
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
-    like_or_dislike_comment(
+    receive_like_or_dislike(
       -1,
       &self.common.actor,
       &self.object,

crates/apub_receive/src/activities/post_or_comment/like.rs

@@ -1,16 +1,19 @@
-use crate::activities::post::like_or_dislike_post;
+use crate::activities::{
+  post_or_comment::voting::receive_like_or_dislike,
+  verify_activity,
+  verify_person_in_community,
+};
 use activitystreams::activity::kind::LikeType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
+use lemmy_apub_lib::{ActivityCommonFields, ActivityHandlerNew, PublicUrl};
 use lemmy_utils::LemmyError;
 use lemmy_websocket::LemmyContext;
 use url::Url;
 
 #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
 #[serde(rename_all = "camelCase")]
-pub struct LikePost {
+pub struct LikePostOrComment {
   to: PublicUrl,
-  pub(in crate::activities::post) object: Url,
+  pub(in crate::activities::post_or_comment) object: Url,
   cc: [Url; 1],
   #[serde(rename = "type")]
   kind: LikeType,
@@ -19,10 +22,15 @@ pub struct LikePost {
 }
 
 #[async_trait::async_trait(?Send)]
-impl ActivityHandlerNew for LikePost {
-  async fn verify(&self, _context: &LemmyContext, _: &mut i32) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    check_is_apub_id_valid(&self.common.actor, false)
+impl ActivityHandlerNew for LikePostOrComment {
+  async fn verify(
+    &self,
+    context: &LemmyContext,
+    request_counter: &mut i32,
+  ) -> Result<(), LemmyError> {
+    verify_activity(self.common())?;
+    verify_person_in_community(&self.common.actor, &self.cc, context, request_counter).await?;
+    Ok(())
   }
 
   async fn receive(
@@ -30,7 +38,7 @@ impl ActivityHandlerNew for LikePost {
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
-    like_or_dislike_post(
+    receive_like_or_dislike(
       1,
       &self.common.actor,
       &self.object,

crates/apub_receive/src/activities/post_or_comment/mod.rs

@@ -0,0 +1,5 @@
+pub mod dislike;
+pub mod like;
+pub mod undo_dislike;
+pub mod undo_like;
+mod voting;

crates/apub_receive/src/activities/post_or_comment/undo_dislike.rs

@@ -1,16 +1,19 @@
-use crate::activities::post::{dislike::DislikePost, undo_like_or_dislike_post};
+use crate::activities::{
+  post_or_comment::{dislike::DislikePostOrComment, voting::receive_undo_like_or_dislike},
+  verify_activity,
+  verify_person_in_community,
+};
 use activitystreams::activity::kind::UndoType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
+use lemmy_apub_lib::{verify_urls_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
 use lemmy_utils::LemmyError;
 use lemmy_websocket::LemmyContext;
 use url::Url;
 
 #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
 #[serde(rename_all = "camelCase")]
-pub struct UndoDislikePost {
+pub struct UndoDislikePostOrComment {
   to: PublicUrl,
-  object: DislikePost,
+  object: DislikePostOrComment,
   cc: [Url; 1],
   #[serde(rename = "type")]
   kind: UndoType,
@@ -19,16 +22,17 @@ pub struct UndoDislikePost {
 }
 
 #[async_trait::async_trait(?Send)]
-impl ActivityHandlerNew for UndoDislikePost {
+impl ActivityHandlerNew for UndoDislikePostOrComment {
   async fn verify(
     &self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    verify_domains_match(&self.common.actor, &self.object.object)?;
-    check_is_apub_id_valid(&self.common.actor, false)?;
-    self.object.verify(context, request_counter).await
+    verify_activity(self.common())?;
+    verify_person_in_community(&self.common.actor, &self.cc, context, request_counter).await?;
+    verify_urls_match(&self.common.actor, &self.object.common().actor)?;
+    self.object.verify(context, request_counter).await?;
+    Ok(())
   }
 
   async fn receive(
@@ -36,7 +40,7 @@ impl ActivityHandlerNew for UndoDislikePost {
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
-    undo_like_or_dislike_post(
+    receive_undo_like_or_dislike(
       &self.common.actor,
       &self.object.object,
       context,

crates/apub_receive/src/activities/post_or_comment/undo_like.rs

@@ -1,16 +1,19 @@
-use crate::activities::comment::{like::LikeComment, undo_like_or_dislike_comment};
+use crate::activities::{
+  post_or_comment::{like::LikePostOrComment, voting::receive_undo_like_or_dislike},
+  verify_activity,
+  verify_person_in_community,
+};
 use activitystreams::activity::kind::UndoType;
-use lemmy_apub::check_is_apub_id_valid;
-use lemmy_apub_lib::{verify_domains_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
+use lemmy_apub_lib::{verify_urls_match, ActivityCommonFields, ActivityHandlerNew, PublicUrl};
 use lemmy_utils::LemmyError;
 use lemmy_websocket::LemmyContext;
 use url::Url;
 
 #[derive(Clone, Debug, serde::Deserialize, serde::Serialize)]
 #[serde(rename_all = "camelCase")]
-pub struct UndoLikeComment {
+pub struct UndoLikePostOrComment {
   to: PublicUrl,
-  object: LikeComment,
+  object: LikePostOrComment,
   cc: [Url; 1],
   #[serde(rename = "type")]
   kind: UndoType,
@@ -19,16 +22,17 @@ pub struct UndoLikeComment {
 }
 
 #[async_trait::async_trait(?Send)]
-impl ActivityHandlerNew for UndoLikeComment {
+impl ActivityHandlerNew for UndoLikePostOrComment {
   async fn verify(
     &self,
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
-    verify_domains_match(&self.common.actor, self.common.id_unchecked())?;
-    verify_domains_match(&self.common.actor, &self.object.object)?;
-    check_is_apub_id_valid(&self.common.actor, false)?;
-    self.object.verify(context, request_counter).await
+    verify_activity(self.common())?;
+    verify_person_in_community(&self.common.actor, &self.cc, context, request_counter).await?;
+    verify_urls_match(&self.common.actor, &self.object.common().actor)?;
+    self.object.verify(context, request_counter).await?;
+    Ok(())
   }
 
   async fn receive(
@@ -36,7 +40,7 @@ impl ActivityHandlerNew for UndoLikeComment {
     context: &LemmyContext,
     request_counter: &mut i32,
   ) -> Result<(), LemmyError> {
-    undo_like_or_dislike_comment(
+    receive_undo_like_or_dislike(
       &self.common.actor,
       &self.object.object,
       context,

crates/apub_receive/src/activities/post_or_comment/voting.rs

@@ -0,0 +1,152 @@
+use crate::activities::{
+  comment::send_websocket_message as send_comment_websocket_message,
+  post::send_websocket_message as send_post_websocket_message,
+};
+use lemmy_api_common::blocking;
+use lemmy_apub::{
+  fetcher::{
+    objects::get_or_fetch_and_insert_post_or_comment,
+    person::get_or_fetch_and_upsert_person,
+  },
+  PostOrComment,
+};
+use lemmy_db_queries::Likeable;
+use lemmy_db_schema::source::{
+  comment::{Comment, CommentLike, CommentLikeForm},
+  post::{Post, PostLike, PostLikeForm},
+};
+use lemmy_utils::LemmyError;
+use lemmy_websocket::{LemmyContext, UserOperation};
+use std::ops::Deref;
+use url::Url;
+
+pub(in crate::activities::post_or_comment) async fn receive_like_or_dislike(
+  score: i16,
+  actor: &Url,
+  object: &Url,
+  context: &LemmyContext,
+  request_counter: &mut i32,
+) -> Result<(), LemmyError> {
+  match get_or_fetch_and_insert_post_or_comment(object, context, request_counter).await? {
+    PostOrComment::Post(p) => {
+      like_or_dislike_post(score, actor, p.deref(), context, request_counter).await
+    }
+    PostOrComment::Comment(c) => {
+      like_or_dislike_comment(score, actor, c.deref(), context, request_counter).await
+    }
+  }
+}
+
+async fn like_or_dislike_comment(
+  score: i16,
+  actor: &Url,
+  comment: &Comment,
+  context: &LemmyContext,
+  request_counter: &mut i32,
+) -> Result<(), LemmyError> {
+  let actor = get_or_fetch_and_upsert_person(actor, context, request_counter).await?;
+
+  let comment_id = comment.id;
+  let like_form = CommentLikeForm {
+    comment_id,
+    post_id: comment.post_id,
+    person_id: actor.id,
+    score,
+  };
+  let person_id = actor.id;
+  blocking(context.pool(), move |conn| {
+    CommentLike::remove(conn, person_id, comment_id)?;
+    CommentLike::like(conn, &like_form)
+  })
+  .await??;
+
+  send_comment_websocket_message(
+    comment_id,
+    vec![],
+    UserOperation::CreateCommentLike,
+    context,
+  )
+  .await
+}
+
+async fn like_or_dislike_post(
+  score: i16,
+  actor: &Url,
+  post: &Post,
+  context: &LemmyContext,
+  request_counter: &mut i32,
+) -> Result<(), LemmyError> {
+  let actor = get_or_fetch_and_upsert_person(actor, context, request_counter).await?;
+
+  let post_id = post.id;
+  let like_form = PostLikeForm {
+    post_id: post.id,
+    person_id: actor.id,
+    score,
+  };
+  let person_id = actor.id;
+  blocking(context.pool(), move |conn| {
+    PostLike::remove(conn, person_id, post_id)?;
+    PostLike::like(conn, &like_form)
+  })
+  .await??;
+
+  send_post_websocket_message(post.id, UserOperation::CreatePostLike, context).await
+}
+
+pub(in crate::activities::post_or_comment) async fn receive_undo_like_or_dislike(
+  actor: &Url,
+  object: &Url,
+  context: &LemmyContext,
+  request_counter: &mut i32,
+) -> Result<(), LemmyError> {
+  match get_or_fetch_and_insert_post_or_comment(object, context, request_counter).await? {
+    PostOrComment::Post(p) => {
+      undo_like_or_dislike_post(actor, p.deref(), context, request_counter).await
+    }
+    PostOrComment::Comment(c) => {
+      undo_like_or_dislike_comment(actor, c.deref(), context, request_counter).await
+    }
+  }
+}
+
+async fn undo_like_or_dislike_comment(
+  actor: &Url,
+  comment: &Comment,
+  context: &LemmyContext,
+  request_counter: &mut i32,
+) -> Result<(), LemmyError> {
+  let actor = get_or_fetch_and_upsert_person(actor, context, request_counter).await?;
+
+  let comment_id = comment.id;
+  let person_id = actor.id;
+  blocking(context.pool(), move |conn| {
+    CommentLike::remove(conn, person_id, comment_id)
+  })
+  .await??;
+
+  send_comment_websocket_message(
+    comment.id,
+    vec![],
+    UserOperation::CreateCommentLike,
+    context,
+  )
+  .await
+}
+
+async fn undo_like_or_dislike_post(
+  actor: &Url,
+  post: &Post,
+  context: &LemmyContext,
+  request_counter: &mut i32,
+) -> Result<(), LemmyError> {
+  let actor = get_or_fetch_and_upsert_person(actor, context, request_counter).await?;
+
+  let post_id = post.id;
+  let person_id = actor.id;
+  blocking(context.pool(), move |conn| {
+    PostLike::remove(conn, person_id, post_id)
+  })
+  .await??;
+  send_post_websocket_message(post.id, UserOperation::CreatePostLike, context).await
+}

crates/apub_receive/src/http/inbox_enums.rs

@@ -2,12 +2,8 @@ use crate::activities::{
   comment::{
     create::CreateComment,
     delete::DeleteComment,
-    dislike::DislikeComment,
-    like::LikeComment,
     remove::RemoveComment,
     undo_delete::UndoDeleteComment,
-    undo_dislike::UndoDislikeComment,
-    undo_like::UndoLikeComment,
     undo_remove::UndoRemoveComment,
     update::UpdateComment,
   },
@@ -27,15 +23,17 @@ use crate::activities::{
   post::{
     create::CreatePost,
     delete::DeletePost,
-    dislike::DislikePost,
-    like::LikePost,
     remove::RemovePost,
     undo_delete::UndoDeletePost,
-    undo_dislike::UndoDislikePost,
-    undo_like::UndoLikePost,
     undo_remove::UndoRemovePost,
     update::UpdatePost,
   },
+  post_or_comment::{
+    dislike::DislikePostOrComment,
+    like::LikePostOrComment,
+    undo_dislike::UndoDislikePostOrComment,
+    undo_like::UndoLikePostOrComment,
+  },
   private_message::{
     create::CreatePrivateMessage,
     delete::DeletePrivateMessage,
@@ -66,24 +64,20 @@ pub enum GroupInboxActivities {
   UndoFollowCommunity(UndoFollowCommunity),
   CreateComment(CreateComment),
   UpdateComment(UpdateComment),
-  LikeComment(LikeComment),
-  DislikeComment(DislikeComment),
-  UndoLikeComment(UndoLikeComment),
-  UndoDislikeComment(UndoDislikeComment),
   DeleteComment(DeleteComment),
   UndoDeleteComment(UndoDeleteComment),
   RemoveComment(RemoveComment),
   UndoRemoveComment(UndoRemoveComment),
   CreatePost(CreatePost),
   UpdatePost(UpdatePost),
-  LikePost(LikePost),
-  DislikePost(DislikePost),
   DeletePost(DeletePost),
   UndoDeletePost(UndoDeletePost),
   RemovePost(RemovePost),
   UndoRemovePost(UndoRemovePost),
-  UndoLikePost(UndoLikePost),
-  UndoDislikePost(UndoDislikePost),
+  LikePostOrComment(LikePostOrComment),
+  DislikePostOrComment(DislikePostOrComment),
+  UndoLikePostOrComment(UndoLikePostOrComment),
+  UndoDislikePostOrComment(UndoDislikePostOrComment),
   UpdateCommunity(Box<UpdateCommunity>),
   DeleteCommunity(DeleteCommunity),
   RemoveCommunity(RemoveCommunity),
@@ -98,36 +92,25 @@ pub enum GroupInboxActivities {
 #[derive(Clone, Debug, Deserialize, Serialize, ActivityHandlerNew)]
 #[serde(untagged)]
 pub enum SharedInboxActivities {
-  // received by person
-  AcceptFollowCommunity(AcceptFollowCommunity),
-  CreatePrivateMessage(CreatePrivateMessage),
-  UpdatePrivateMessage(UpdatePrivateMessage),
-  DeletePrivateMessage(DeletePrivateMessage),
-  UndoDeletePrivateMessage(UndoDeletePrivateMessage),
-  AnnounceActivity(Box<AnnounceActivity>),
   // received by group
   FollowCommunity(FollowCommunity),
   UndoFollowCommunity(UndoFollowCommunity),
   CreateComment(CreateComment),
   UpdateComment(UpdateComment),
-  LikeComment(LikeComment),
-  DislikeComment(DislikeComment),
-  UndoLikeComment(UndoLikeComment),
-  UndoDislikeComment(UndoDislikeComment),
   DeleteComment(DeleteComment),
   UndoDeleteComment(UndoDeleteComment),
   RemoveComment(RemoveComment),
   UndoRemoveComment(UndoRemoveComment),
   CreatePost(CreatePost),
   UpdatePost(UpdatePost),
-  LikePost(LikePost),
-  DislikePost(DislikePost),
   DeletePost(DeletePost),
   UndoDeletePost(UndoDeletePost),
   RemovePost(RemovePost),
   UndoRemovePost(UndoRemovePost),
-  UndoLikePost(UndoLikePost),
-  UndoDislikePost(UndoDislikePost),
+  LikePostOrComment(LikePostOrComment),
+  DislikePostOrComment(DislikePostOrComment),
+  UndoDislikePostOrComment(UndoDislikePostOrComment),
+  UndoLikePostOrComment(UndoLikePostOrComment),
   UpdateCommunity(Box<UpdateCommunity>),
   DeleteCommunity(DeleteCommunity),
   RemoveCommunity(RemoveCommunity),
@@ -137,4 +120,13 @@ pub enum SharedInboxActivities {
   UndoBlockUserFromCommunity(UndoBlockUserFromCommunity),
   AddMod(AddMod),
   RemoveMod(RemoveMod),
+  // received by person
+  AcceptFollowCommunity(AcceptFollowCommunity),
+  // Note, pm activities need to be at the end, otherwise comments will end up here. We can probably
+  // avoid this problem by replacing createpm.object with our own struct, instead of NoteExt.
+  CreatePrivateMessage(CreatePrivateMessage),
+  UpdatePrivateMessage(UpdatePrivateMessage),
+  DeletePrivateMessage(DeletePrivateMessage),
+  UndoDeletePrivateMessage(UndoDeletePrivateMessage),
+  AnnounceActivity(Box<AnnounceActivity>),
 }

crates/apub_receive/src/http/mod.rs

@@ -1,7 +1,4 @@
-use crate::activities::{
-  following::accept::AcceptFollowCommunity,
-  post::{create::CreatePost, like::LikePost},
-};
+use crate::http::inbox_enums::SharedInboxActivities;
 use actix_web::{
   body::Body,
   web,
@@ -20,12 +17,11 @@ use lemmy_apub::{
   insert_activity,
   APUB_JSON_CONTENT_TYPE,
 };
-use lemmy_apub_lib::{ActivityCommonFields, ActivityHandlerNew};
+use lemmy_apub_lib::ActivityHandlerNew;
 use lemmy_db_queries::{source::activity::Activity_, DbPool};
 use lemmy_db_schema::source::activity::Activity;
 use lemmy_utils::{location_info, settings::structs::Settings, LemmyError};
 use lemmy_websocket::LemmyContext;
-use log::debug;
 use serde::{Deserialize, Serialize};
 use std::{fmt::Debug, io::Read};
 use url::Url;
@@ -36,21 +32,13 @@ pub mod inbox_enums;
 pub mod person;
 pub mod post;
 
-#[derive(Debug, Clone, serde::Serialize, serde::Deserialize, ActivityHandlerNew)]
-#[serde(untagged)]
-enum Ac {
-  CreatePost(CreatePost),
-  LikePost(LikePost),
-  AcceptFollowCommunity(AcceptFollowCommunity),
-}
-
 pub async fn shared_inbox(
   request: HttpRequest,
   payload: Payload,
   context: web::Data<LemmyContext>,
 ) -> Result<HttpResponse, LemmyError> {
   let unparsed = payload_to_string(payload).await?;
-  receive_activity::<Ac>(request, &unparsed, context).await
+  receive_activity::<SharedInboxActivities>(request, &unparsed, context).await
 }
 
 async fn payload_to_string(mut payload: Payload) -> Result<String, LemmyError> {
@@ -70,22 +58,23 @@ async fn receive_activity<'a, T>(
 where
   T: ActivityHandlerNew + Clone + Deserialize<'a> + Serialize + std::fmt::Debug + Send + 'static,
 {
-  debug!("Received activity {}", activity);
-  let activity = serde_json::from_str::<T>(activity)?;
+  let activity = serde_json::from_str::<T>(activity);
+  dbg!(&activity);
+  let activity = activity?;
   let activity_data = activity.common();
   // TODO: which order to check things?
   // Do nothing if we received the same activity before
   if is_activity_already_known(context.pool(), activity_data.id_unchecked()).await? {
     return Ok(HttpResponse::Ok().finish());
   }
-  assert_activity_not_local(&activity)?;
-  check_is_apub_id_valid(&activity_data.actor, false)?;
 
   let request_counter = &mut 0;
   let actor =
     get_or_fetch_and_upsert_actor(&activity_data.actor, &context, request_counter).await?;
   verify_signature(&request, &actor.public_key().context(location_info!())?)?;
   activity.verify(&context, request_counter).await?;
+  assert_activity_not_local(&activity)?;
+  check_is_apub_id_valid(&activity_data.actor, false)?;
 
   // Log the activity, so we avoid receiving and parsing it twice. Note that this could still happen
   // if we receive the same activity twice in very quick succession.

scripts/compilation_benchmark.sh

@@ -8,8 +8,8 @@ for ((i=0; i < times; i++)) ; do
     echo "cargo clean"
     # to benchmark incremental compilation time, do a full build with the same compiler version first,
     # and use the following clean command:
-    #cargo clean -p lemmy_utils
-    cargo clean
+    cargo clean -p lemmy_utils
+    #cargo clean
     echo "cargo build"
     start=$(date +%s.%N)
     RUSTC_WRAPPER='' cargo build -q