crates/apub/src/fetcher/post_or_comment.rs

   1 use crate::{
   2   objects::{comment::ApubComment, post::ApubPost},
   3   protocol::objects::{note::Note, page::Page},
   4 };
   5 use chrono::NaiveDateTime;
   6 use lemmy_apub_lib::traits::ApubObject;
   7 use lemmy_utils::LemmyError;
   8 use lemmy_websocket::LemmyContext;
   9 use serde::Deserialize;
  10 use url::Url;
  11
  12 #[derive(Clone, Debug)]
  13 pub enum PostOrComment {
  14   Post(Box<ApubPost>),
  15   Comment(Box<ApubComment>),
  16 }
  17
  18 #[derive(Deserialize)]
  19 #[serde(untagged)]
  20 pub enum PageOrNote {
  21   Page(Page),
  22   Note(Note),
  23 }
  24
  25 #[async_trait::async_trait(?Send)]
  26 impl ApubObject for PostOrComment {
  27   type DataType = LemmyContext;
  28   type ApubType = PageOrNote;
  29   type TombstoneType = ();
  30
  31   fn last_refreshed_at(&self) -> Option<NaiveDateTime> {
  32     None
  33   }
  34
  35   // TODO: this can probably be implemented using a single sql query
  36   async fn read_from_apub_id(
  37     object_id: Url,
  38     data: &Self::DataType,
  39   ) -> Result<Option<Self>, LemmyError> {
  40     let post = ApubPost::read_from_apub_id(object_id.clone(), data).await?;
  41     Ok(match post {
  42       Some(o) => Some(PostOrComment::Post(Box::new(o))),
  43       None => ApubComment::read_from_apub_id(object_id, data)
  44         .await?
  45         .map(|c| PostOrComment::Comment(Box::new(c))),
  46     })
  47   }
  48
  49   async fn delete(self, data: &Self::DataType) -> Result<(), LemmyError> {
  50     match self {
  51       PostOrComment::Post(p) => p.delete(data).await,
  52       PostOrComment::Comment(c) => c.delete(data).await,
  53     }
  54   }
  55
  56   async fn into_apub(self, _data: &Self::DataType) -> Result<Self::ApubType, LemmyError> {
  57     unimplemented!()
  58   }
  59
  60   fn to_tombstone(&self) -> Result<Self::TombstoneType, LemmyError> {
  61     unimplemented!()
  62   }
  63
  64   async fn verify(
  65     apub: &Self::ApubType,
  66     expected_domain: &Url,
  67     data: &Self::DataType,
  68     request_counter: &mut i32,
  69   ) -> Result<(), LemmyError> {
  70     match apub {
  71       PageOrNote::Page(a) => ApubPost::verify(a, expected_domain, data, request_counter).await,
  72       PageOrNote::Note(a) => ApubComment::verify(a, expected_domain, data, request_counter).await,
  73     }
  74   }
  75
  76   async fn from_apub(
  77     apub: PageOrNote,
  78     context: &LemmyContext,
  79     request_counter: &mut i32,
  80   ) -> Result<Self, LemmyError> {
  81     Ok(match apub {
  82       PageOrNote::Page(p) => PostOrComment::Post(Box::new(
  83         ApubPost::from_apub(p, context, request_counter).await?,
  84       )),
  85       PageOrNote::Note(n) => PostOrComment::Comment(Box::new(
  86         ApubComment::from_apub(n, context, request_counter).await?,
  87       )),
  88     })
  89   }
  90 }
  91
  92 impl PostOrComment {
  93   pub(crate) fn ap_id(&self) -> Url {
  94     match self {
  95       PostOrComment::Post(p) => p.ap_id.clone(),
  96       PostOrComment::Comment(c) => c.ap_id.clone(),
  97     }
  98     .into()
  99   }
 100 }