crates/apub/src/api/list_posts.rs

   1 use crate::{
   2   api::PerformApub,
   3   fetcher::resolve_actor_identifier,
   4   objects::community::ApubCommunity,
   5 };
   6 use actix_web::web::Data;
   7 use lemmy_api_common::{
   8   context::LemmyContext,
   9   post::{GetPosts, GetPostsResponse},
  10   utils::{
  11     check_private_instance,
  12     get_local_user_view_from_jwt_opt,
  13     listing_type_with_site_default,
  14   },
  15 };
  16 use lemmy_db_schema::{
  17   source::{community::Community, local_site::LocalSite},
  18   traits::DeleteableOrRemoveable,
  19 };
  20 use lemmy_db_views::post_view::PostQuery;
  21 use lemmy_utils::{error::LemmyError, ConnectionId};
  22
  23 #[async_trait::async_trait(?Send)]
  24 impl PerformApub for GetPosts {
  25   type Response = GetPostsResponse;
  26
  27   #[tracing::instrument(skip(context, _websocket_id))]
  28   async fn perform(
  29     &self,
  30     context: &Data<LemmyContext>,
  31     _websocket_id: Option<ConnectionId>,
  32   ) -> Result<GetPostsResponse, LemmyError> {
  33     let data: &GetPosts = self;
  34     let local_user_view =
  35       get_local_user_view_from_jwt_opt(data.auth.as_ref(), context.pool(), context.secret())
  36         .await?;
  37     let local_site = LocalSite::read(context.pool()).await?;
  38
  39     check_private_instance(&local_user_view, &local_site)?;
  40
  41     let is_logged_in = local_user_view.is_some();
  42
  43     let sort = data.sort;
  44     let listing_type = listing_type_with_site_default(data.type_, &local_site)?;
  45
  46     let page = data.page;
  47     let limit = data.limit;
  48     let community_id = data.community_id;
  49     let community_actor_id = if let Some(name) = &data.community_name {
  50       resolve_actor_identifier::<ApubCommunity, Community>(name, context, true)
  51         .await
  52         .ok()
  53         .map(|c| c.actor_id)
  54     } else {
  55       None
  56     };
  57     let saved_only = data.saved_only;
  58
  59     let mut posts = PostQuery::builder()
  60       .pool(context.pool())
  61       .local_user(local_user_view.map(|l| l.local_user).as_ref())
  62       .listing_type(Some(listing_type))
  63       .sort(sort)
  64       .community_id(community_id)
  65       .community_actor_id(community_actor_id)
  66       .saved_only(saved_only)
  67       .page(page)
  68       .limit(limit)
  69       .build()
  70       .list()
  71       .await
  72       .map_err(|e| LemmyError::from_error_message(e, "couldnt_get_posts"))?;
  73
  74     // Blank out deleted or removed info for non-logged in users
  75     if !is_logged_in {
  76       for pv in posts
  77         .iter_mut()
  78         .filter(|p| p.post.deleted || p.post.removed)
  79       {
  80         pv.post = pv.clone().post.blank_out_deleted_or_removed_info();
  81       }
  82
  83       for pv in posts
  84         .iter_mut()
  85         .filter(|p| p.community.deleted || p.community.removed)
  86       {
  87         pv.community = pv.clone().community.blank_out_deleted_or_removed_info();
  88       }
  89     }
  90
  91     Ok(GetPostsResponse { posts })
  92   }
  93 }