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62663a9f2e
* Implement separate mod activities for feature, lock post Also includes collection for featured posts. Later we also need to do the same for Comment.distinguished * some changes --------- Co-authored-by: Dessalines <dessalines@users.noreply.github.com>
104 lines
3.2 KiB
Rust
104 lines
3.2 KiB
Rust
use crate::{
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collections::CommunityContext,
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objects::post::ApubPost,
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protocol::collections::group_featured::GroupFeatured,
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};
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use activitypub_federation::{
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data::Data,
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traits::{ActivityHandler, ApubObject},
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utils::verify_domains_match,
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};
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use activitystreams_kinds::collection::OrderedCollectionType;
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use futures::future::{join_all, try_join_all};
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use lemmy_api_common::utils::generate_featured_url;
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use lemmy_db_schema::{source::post::Post, utils::FETCH_LIMIT_MAX};
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use lemmy_utils::error::LemmyError;
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use url::Url;
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#[derive(Clone, Debug)]
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pub(crate) struct ApubCommunityFeatured(Vec<ApubPost>);
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#[async_trait::async_trait(?Send)]
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impl ApubObject for ApubCommunityFeatured {
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type DataType = CommunityContext;
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type ApubType = GroupFeatured;
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type DbType = ();
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type Error = LemmyError;
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async fn read_from_apub_id(
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_object_id: Url,
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data: &Self::DataType,
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) -> Result<Option<Self>, Self::Error>
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where
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Self: Sized,
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{
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// Only read from database if its a local community, otherwise fetch over http
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if data.0.local {
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let community_id = data.0.id;
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let post_list: Vec<ApubPost> = Post::list_featured_for_community(data.1.pool(), community_id)
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.await?
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.into_iter()
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.map(Into::into)
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.collect();
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Ok(Some(ApubCommunityFeatured(post_list)))
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} else {
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Ok(None)
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}
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}
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async fn into_apub(self, data: &Self::DataType) -> Result<Self::ApubType, Self::Error> {
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let ordered_items = try_join_all(self.0.into_iter().map(|p| p.into_apub(&data.1))).await?;
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Ok(GroupFeatured {
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r#type: OrderedCollectionType::OrderedCollection,
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id: generate_featured_url(&data.0.actor_id)?.into(),
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total_items: ordered_items.len() as i32,
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ordered_items,
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})
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}
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async fn verify(
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apub: &Self::ApubType,
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expected_domain: &Url,
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_data: &Self::DataType,
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_request_counter: &mut i32,
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) -> Result<(), Self::Error> {
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verify_domains_match(expected_domain, &apub.id)?;
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Ok(())
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}
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async fn from_apub(
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apub: Self::ApubType,
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data: &Self::DataType,
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_request_counter: &mut i32,
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) -> Result<Self, Self::Error>
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where
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Self: Sized,
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{
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let mut posts = apub.ordered_items;
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if posts.len() as i64 > FETCH_LIMIT_MAX {
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posts = posts[0..(FETCH_LIMIT_MAX as usize)].to_vec();
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}
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// We intentionally ignore errors here. This is because the outbox might contain posts from old
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// Lemmy versions, or from other software which we cant parse. In that case, we simply skip the
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// item and only parse the ones that work.
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let data = Data::new(data.1.clone());
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// process items in parallel, to avoid long delay from fetch_site_metadata() and other processing
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join_all(posts.into_iter().map(|post| {
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async {
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// use separate request counter for each item, otherwise there will be problems with
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// parallel processing
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let request_counter = &mut 0;
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let verify = post.verify(&data, request_counter).await;
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if verify.is_ok() {
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post.receive(&data, request_counter).await.ok();
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}
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}
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}))
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.await;
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// This return value is unused, so just set an empty vec
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Ok(ApubCommunityFeatured(Vec::new()))
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}
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}
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