crates/apub/src/protocol/objects/note.rs

   1 use crate::{
   2   fetcher::post_or_comment::PostOrComment,
   3   local_instance,
   4   mentions::MentionOrValue,
   5   objects::{comment::ApubComment, person::ApubPerson, post::ApubPost},
   6   protocol::Source,
   7 };
   8 use activitypub_federation::{
   9   core::object_id::ObjectId,
  10   deser::{
  11     helpers::{deserialize_one_or_many, deserialize_skip_error},
  12     values::MediaTypeMarkdownOrHtml,
  13   },
  14 };
  15 use activitystreams_kinds::object::NoteType;
  16 use chrono::{DateTime, FixedOffset};
  17 use lemmy_api_common::utils::blocking;
  18 use lemmy_db_schema::{source::post::Post, traits::Crud};
  19 use lemmy_utils::error::LemmyError;
  20 use lemmy_websocket::LemmyContext;
  21 use serde::{Deserialize, Serialize};
  22 use serde_with::skip_serializing_none;
  23 use std::ops::Deref;
  24 use url::Url;
  25
  26 #[skip_serializing_none]
  27 #[derive(Clone, Debug, Deserialize, Serialize)]
  28 #[serde(rename_all = "camelCase")]
  29 pub struct Note {
  30   pub(crate) r#type: NoteType,
  31   pub(crate) id: ObjectId<ApubComment>,
  32   pub(crate) attributed_to: ObjectId<ApubPerson>,
  33   #[serde(deserialize_with = "deserialize_one_or_many")]
  34   pub(crate) to: Vec<Url>,
  35   #[serde(deserialize_with = "deserialize_one_or_many", default)]
  36   pub(crate) cc: Vec<Url>,
  37   pub(crate) content: String,
  38   pub(crate) in_reply_to: ObjectId<PostOrComment>,
  39
  40   pub(crate) media_type: Option<MediaTypeMarkdownOrHtml>,
  41   #[serde(deserialize_with = "deserialize_skip_error", default)]
  42   pub(crate) source: Option<Source>,
  43   pub(crate) published: Option<DateTime<FixedOffset>>,
  44   pub(crate) updated: Option<DateTime<FixedOffset>>,
  45   #[serde(default)]
  46   pub(crate) tag: Vec<MentionOrValue>,
  47 }
  48
  49 impl Note {
  50   pub(crate) async fn get_parents(
  51     &self,
  52     context: &LemmyContext,
  53     request_counter: &mut i32,
  54   ) -> Result<(ApubPost, Option<ApubComment>), LemmyError> {
  55     // Fetch parent comment chain in a box, otherwise it can cause a stack overflow.
  56     let parent = Box::pin(
  57       self
  58         .in_reply_to
  59         .dereference(context, local_instance(context), request_counter)
  60         .await?,
  61     );
  62     match parent.deref() {
  63       PostOrComment::Post(p) => {
  64         let post = p.deref().to_owned();
  65         Ok((post, None))
  66       }
  67       PostOrComment::Comment(c) => {
  68         let post_id = c.post_id;
  69         let post = blocking(context.pool(), move |conn| Post::read(conn, post_id)).await??;
  70         let comment = c.deref().to_owned();
  71         Ok((post.into(), Some(comment)))
  72       }
  73     }
  74   }
  75 }