crates/api_crud/src/community/list.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   community::{ListCommunities, ListCommunitiesResponse},
   5   utils::{blocking, check_private_instance, get_local_user_view_from_jwt_opt},
   6 };
   7 use lemmy_db_schema::traits::DeleteableOrRemoveable;
   8 use lemmy_db_views_actor::community_view::CommunityQuery;
   9 use lemmy_utils::{error::LemmyError, ConnectionId};
  10 use lemmy_websocket::LemmyContext;
  11
  12 #[async_trait::async_trait(?Send)]
  13 impl PerformCrud for ListCommunities {
  14   type Response = ListCommunitiesResponse;
  15
  16   #[tracing::instrument(skip(context, _websocket_id))]
  17   async fn perform(
  18     &self,
  19     context: &Data<LemmyContext>,
  20     _websocket_id: Option<ConnectionId>,
  21   ) -> Result<ListCommunitiesResponse, LemmyError> {
  22     let data: &ListCommunities = self;
  23     let local_user_view =
  24       get_local_user_view_from_jwt_opt(data.auth.as_ref(), context.pool(), context.secret())
  25         .await?;
  26
  27     check_private_instance(&local_user_view, context.pool()).await?;
  28
  29     let person_id = local_user_view.to_owned().map(|l| l.person.id);
  30
  31     let sort = data.sort;
  32     let listing_type = data.type_;
  33     let page = data.page;
  34     let limit = data.limit;
  35     let local_user = local_user_view.map(|l| l.local_user);
  36     let mut communities = blocking(context.pool(), move |conn| {
  37       CommunityQuery::builder()
  38         .conn(conn)
  39         .listing_type(listing_type)
  40         .sort(sort)
  41         .local_user(local_user.as_ref())
  42         .page(page)
  43         .limit(limit)
  44         .build()
  45         .list()
  46     })
  47     .await??;
  48
  49     // Blank out deleted or removed info for non-logged in users
  50     if person_id.is_none() {
  51       for cv in communities
  52         .iter_mut()
  53         .filter(|cv| cv.community.deleted || cv.community.removed)
  54       {
  55         cv.community = cv.to_owned().community.blank_out_deleted_or_removed_info();
  56       }
  57     }
  58
  59     // Return the jwt
  60     Ok(ListCommunitiesResponse { communities })
  61   }
  62 }