crates/api_crud/src/community/read.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{blocking, community::*, get_local_user_view_from_jwt_opt};
   4 use lemmy_apub::{build_actor_id_from_shortname, EndpointType};
   5 use lemmy_db_queries::{from_opt_str_to_opt_enum, ApubObject, ListingType, SortType};
   6 use lemmy_db_schema::source::community::*;
   7 use lemmy_db_views_actor::{
   8   community_moderator_view::CommunityModeratorView,
   9   community_view::{CommunityQueryBuilder, CommunityView},
  10 };
  11 use lemmy_utils::{ApiError, ConnectionId, LemmyError};
  12 use lemmy_websocket::{messages::GetCommunityUsersOnline, LemmyContext};
  13
  14 #[async_trait::async_trait(?Send)]
  15 impl PerformCrud for GetCommunity {
  16   type Response = GetCommunityResponse;
  17
  18   async fn perform(
  19     &self,
  20     context: &Data<LemmyContext>,
  21     _websocket_id: Option<ConnectionId>,
  22   ) -> Result<GetCommunityResponse, LemmyError> {
  23     let data: &GetCommunity = self;
  24     let local_user_view = get_local_user_view_from_jwt_opt(&data.auth, context.pool()).await?;
  25     let person_id = local_user_view.map(|u| u.person.id);
  26
  27     let community_id = match data.id {
  28       Some(id) => id,
  29       None => {
  30         let name = data.name.to_owned().unwrap_or_else(|| "main".to_string());
  31         let community_actor_id = build_actor_id_from_shortname(EndpointType::Community, &name)?;
  32
  33         blocking(context.pool(), move |conn| {
  34           Community::read_from_apub_id(conn, &community_actor_id)
  35         })
  36         .await?
  37         .map_err(|_| ApiError::err("couldnt_find_community"))?
  38         .id
  39       }
  40     };
  41
  42     let community_view = blocking(context.pool(), move |conn| {
  43       CommunityView::read(conn, community_id, person_id)
  44     })
  45     .await?
  46     .map_err(|_| ApiError::err("couldnt_find_community"))?;
  47
  48     let moderators: Vec<CommunityModeratorView> = blocking(context.pool(), move |conn| {
  49       CommunityModeratorView::for_community(conn, community_id)
  50     })
  51     .await?
  52     .map_err(|_| ApiError::err("couldnt_find_community"))?;
  53
  54     let online = context
  55       .chat_server()
  56       .send(GetCommunityUsersOnline { community_id })
  57       .await
  58       .unwrap_or(1);
  59
  60     let res = GetCommunityResponse {
  61       community_view,
  62       moderators,
  63       online,
  64     };
  65
  66     // Return the jwt
  67     Ok(res)
  68   }
  69 }
  70
  71 #[async_trait::async_trait(?Send)]
  72 impl PerformCrud for ListCommunities {
  73   type Response = ListCommunitiesResponse;
  74
  75   async fn perform(
  76     &self,
  77     context: &Data<LemmyContext>,
  78     _websocket_id: Option<ConnectionId>,
  79   ) -> Result<ListCommunitiesResponse, LemmyError> {
  80     let data: &ListCommunities = self;
  81     let local_user_view = get_local_user_view_from_jwt_opt(&data.auth, context.pool()).await?;
  82
  83     let person_id = local_user_view.to_owned().map(|l| l.person.id);
  84
  85     // Don't show NSFW by default
  86     let show_nsfw = match &local_user_view {
  87       Some(uv) => uv.local_user.show_nsfw,
  88       None => false,
  89     };
  90
  91     let sort: Option<SortType> = from_opt_str_to_opt_enum(&data.sort);
  92     let listing_type: Option<ListingType> = from_opt_str_to_opt_enum(&data.type_);
  93
  94     let page = data.page;
  95     let limit = data.limit;
  96     let communities = blocking(context.pool(), move |conn| {
  97       CommunityQueryBuilder::create(conn)
  98         .listing_type(listing_type)
  99         .sort(sort)
 100         .show_nsfw(show_nsfw)
 101         .my_person_id(person_id)
 102         .page(page)
 103         .limit(limit)
 104         .list()
 105     })
 106     .await??;
 107
 108     // Return the jwt
 109     Ok(ListCommunitiesResponse { communities })
 110   }
 111 }