crates/apub/src/api/list_posts.rs

   1 use crate::{
   2   api::{listing_type_with_default, PerformApub},
   3   fetcher::resolve_actor_identifier,
   4   objects::community::ApubCommunity,
   5 };
   6 use activitypub_federation::config::Data;
   7 use lemmy_api_common::{
   8   context::LemmyContext,
   9   post::{GetPosts, GetPostsResponse},
  10   utils::{check_private_instance, is_mod_or_admin_opt, local_user_view_from_jwt_opt},
  11 };
  12 use lemmy_db_schema::source::{community::Community, local_site::LocalSite};
  13 use lemmy_db_views::post_view::PostQuery;
  14 use lemmy_utils::error::LemmyError;
  15
  16 #[async_trait::async_trait]
  17 impl PerformApub for GetPosts {
  18   type Response = GetPostsResponse;
  19
  20   #[tracing::instrument(skip(context))]
  21   async fn perform(&self, context: &Data<LemmyContext>) -> Result<GetPostsResponse, LemmyError> {
  22     let data: &GetPosts = self;
  23     let local_user_view = local_user_view_from_jwt_opt(data.auth.as_ref(), context).await;
  24     let local_site = LocalSite::read(context.pool()).await?;
  25
  26     check_private_instance(&local_user_view, &local_site)?;
  27
  28     let sort = data.sort;
  29
  30     let page = data.page;
  31     let limit = data.limit;
  32     let community_id = if let Some(name) = &data.community_name {
  33       resolve_actor_identifier::<ApubCommunity, Community>(name, context, &None, true)
  34         .await
  35         .ok()
  36         .map(|c| c.id)
  37     } else {
  38       data.community_id
  39     };
  40     let saved_only = data.saved_only;
  41
  42     let listing_type = listing_type_with_default(data.type_, &local_site, community_id)?;
  43
  44     let is_mod_or_admin =
  45       is_mod_or_admin_opt(context.pool(), local_user_view.as_ref(), community_id)
  46         .await
  47         .is_ok();
  48
  49     let posts = PostQuery::builder()
  50       .pool(context.pool())
  51       .local_user(local_user_view.map(|l| l.local_user).as_ref())
  52       .listing_type(Some(listing_type))
  53       .sort(sort)
  54       .community_id(community_id)
  55       .saved_only(saved_only)
  56       .page(page)
  57       .limit(limit)
  58       .is_mod_or_admin(Some(is_mod_or_admin))
  59       .build()
  60       .list()
  61       .await
  62       .map_err(|e| LemmyError::from_error_message(e, "couldnt_get_posts"))?;
  63
  64     Ok(GetPostsResponse { posts })
  65   }
  66 }