crates/apub/src/api/list_posts.rs

   1 use crate::{
   2   api::listing_type_with_default,
   3   fetcher::resolve_actor_identifier,
   4   objects::community::ApubCommunity,
   5 };
   6 use activitypub_federation::config::Data;
   7 use actix_web::web::{Json, Query};
   8 use lemmy_api_common::{
   9   context::LemmyContext,
  10   post::{GetPosts, GetPostsResponse},
  11   utils::{check_private_instance, local_user_view_from_jwt_opt},
  12 };
  13 use lemmy_db_schema::source::{community::Community, local_site::LocalSite};
  14 use lemmy_db_views::post_view::PostQuery;
  15 use lemmy_utils::error::{LemmyError, LemmyErrorExt, LemmyErrorType};
  16
  17 #[tracing::instrument(skip(context))]
  18 pub async fn list_posts(
  19   data: Query<GetPosts>,
  20   context: Data<LemmyContext>,
  21 ) -> Result<Json<GetPostsResponse>, LemmyError> {
  22   let local_user_view = local_user_view_from_jwt_opt(data.auth.as_ref(), &context).await;
  23   let local_site = LocalSite::read(&mut context.pool()).await?;
  24
  25   check_private_instance(&local_user_view, &local_site)?;
  26
  27   let sort = data.sort;
  28
  29   let page = data.page;
  30   let limit = data.limit;
  31   let community_id = if let Some(name) = &data.community_name {
  32     Some(resolve_actor_identifier::<ApubCommunity, Community>(name, &context, &None, true).await?)
  33       .map(|c| c.id)
  34   } else {
  35     data.community_id
  36   };
  37   let saved_only = data.saved_only.unwrap_or_default();
  38
  39   let liked_only = data.liked_only.unwrap_or_default();
  40   let disliked_only = data.disliked_only.unwrap_or_default();
  41   if liked_only && disliked_only {
  42     return Err(LemmyError::from(LemmyErrorType::ContradictingFilters));
  43   }
  44
  45   let moderator_view = data.moderator_view.unwrap_or_default();
  46
  47   let listing_type = Some(listing_type_with_default(
  48     data.type_,
  49     &local_site,
  50     community_id,
  51   )?);
  52
  53   let posts = PostQuery {
  54     local_user: local_user_view.as_ref(),
  55     listing_type,
  56     sort,
  57     community_id,
  58     saved_only,
  59     liked_only,
  60     disliked_only,
  61     moderator_view,
  62     page,
  63     limit,
  64     ..Default::default()
  65   }
  66   .list(&mut context.pool())
  67   .await
  68   .with_lemmy_type(LemmyErrorType::CouldntGetPosts)?;
  69
  70   Ok(Json(GetPostsResponse { posts }))
  71 }