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::CommunityQueryBuilder;
   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     // Don't show NSFW by default
  32     let show_nsfw = match &local_user_view {
  33       Some(uv) => uv.local_user.show_nsfw,
  34       None => false,
  35     };
  36
  37     let sort = data.sort;
  38     let listing_type = data.type_;
  39     let page = data.page;
  40     let limit = data.limit;
  41     let mut communities = blocking(context.pool(), move |conn| {
  42       CommunityQueryBuilder::create(conn)
  43         .listing_type(listing_type)
  44         .sort(sort)
  45         .show_nsfw(show_nsfw)
  46         .my_person_id(person_id)
  47         .page(page)
  48         .limit(limit)
  49         .list()
  50     })
  51     .await??;
  52
  53     // Blank out deleted or removed info for non-logged in users
  54     if person_id.is_none() {
  55       for cv in communities
  56         .iter_mut()
  57         .filter(|cv| cv.community.deleted || cv.community.removed)
  58       {
  59         cv.community = cv.to_owned().community.blank_out_deleted_or_removed_info();
  60       }
  61     }
  62
  63     // Return the jwt
  64     Ok(ListCommunitiesResponse { communities })
  65   }
  66 }