lemmy/crates/apub/src/fetcher/post_or_comment.rs
Nutomic 527eefbe92
Rewrite fetcher (#1792)
* Use new fetcher implementation for post/comment

* rewrite person fetch to use new fetcher

* rewrite community to use new fetcher

* rename new_fetcher to dereference_object_id

* make ObjectId a newtype

* handle deletion in new fetcher

* rewrite apub object search to be generic

* move upsert() method out of ApubObject trait

* simplify ObjectId::new (and fix clippy)
2021-09-25 11:44:52 -04:00

85 lines
2 KiB
Rust

use crate::objects::{comment::Note, post::Page, FromApub};
use activitystreams::chrono::NaiveDateTime;
use diesel::{result::Error, PgConnection};
use lemmy_db_queries::ApubObject;
use lemmy_db_schema::{
source::{
comment::{Comment, CommentForm},
post::{Post, PostForm},
},
DbUrl,
};
use lemmy_utils::LemmyError;
use lemmy_websocket::LemmyContext;
use serde::Deserialize;
use url::Url;
#[derive(Clone, Debug)]
pub enum PostOrComment {
Comment(Box<Comment>),
Post(Box<Post>),
}
pub enum PostOrCommentForm {
PostForm(PostForm),
CommentForm(CommentForm),
}
#[derive(Deserialize)]
pub enum PageOrNote {
Page(Page),
Note(Note),
}
#[async_trait::async_trait(?Send)]
impl ApubObject for PostOrComment {
fn last_refreshed_at(&self) -> Option<NaiveDateTime> {
None
}
// TODO: this can probably be implemented using a single sql query
fn read_from_apub_id(conn: &PgConnection, object_id: &DbUrl) -> Result<Self, Error>
where
Self: Sized,
{
let post = Post::read_from_apub_id(conn, object_id);
Ok(match post {
Ok(o) => PostOrComment::Post(Box::new(o)),
Err(_) => PostOrComment::Comment(Box::new(Comment::read_from_apub_id(conn, object_id)?)),
})
}
}
#[async_trait::async_trait(?Send)]
impl FromApub for PostOrComment {
type ApubType = PageOrNote;
async fn from_apub(
apub: &PageOrNote,
context: &LemmyContext,
expected_domain: &Url,
request_counter: &mut i32,
) -> Result<Self, LemmyError>
where
Self: Sized,
{
Ok(match apub {
PageOrNote::Page(p) => PostOrComment::Post(Box::new(
Post::from_apub(p, context, expected_domain, request_counter).await?,
)),
PageOrNote::Note(n) => PostOrComment::Comment(Box::new(
Comment::from_apub(n, context, expected_domain, request_counter).await?,
)),
})
}
}
impl PostOrComment {
pub(crate) fn ap_id(&self) -> Url {
match self {
PostOrComment::Post(p) => p.ap_id.clone(),
PostOrComment::Comment(c) => c.ap_id.clone(),
}
.into()
}
}