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::{
   6   from_opt_str_to_opt_enum,
   7   ApubObject,
   8   DeleteableOrRemoveable,
   9   ListingType,
  10   SortType,
  11 };
  12 use lemmy_db_schema::source::community::*;
  13 use lemmy_db_views_actor::{
  14   community_moderator_view::CommunityModeratorView,
  15   community_view::{CommunityQueryBuilder, CommunityView},
  16 };
  17 use lemmy_utils::{ApiError, ConnectionId, LemmyError};
  18 use lemmy_websocket::{messages::GetCommunityUsersOnline, LemmyContext};
  19
  20 #[async_trait::async_trait(?Send)]
  21 impl PerformCrud for GetCommunity {
  22   type Response = GetCommunityResponse;
  23
  24   async fn perform(
  25     &self,
  26     context: &Data<LemmyContext>,
  27     _websocket_id: Option<ConnectionId>,
  28   ) -> Result<GetCommunityResponse, LemmyError> {
  29     let data: &GetCommunity = self;
  30     let local_user_view = get_local_user_view_from_jwt_opt(&data.auth, context.pool()).await?;
  31     let person_id = local_user_view.map(|u| u.person.id);
  32
  33     let community_id = match data.id {
  34       Some(id) => id,
  35       None => {
  36         let name = data.name.to_owned().unwrap_or_else(|| "main".to_string());
  37         let community_actor_id = build_actor_id_from_shortname(EndpointType::Community, &name)?;
  38
  39         blocking(context.pool(), move |conn| {
  40           Community::read_from_apub_id(conn, &community_actor_id)
  41         })
  42         .await?
  43         .map_err(|_| ApiError::err("couldnt_find_community"))?
  44         .id
  45       }
  46     };
  47
  48     let mut community_view = blocking(context.pool(), move |conn| {
  49       CommunityView::read(conn, community_id, person_id)
  50     })
  51     .await?
  52     .map_err(|_| ApiError::err("couldnt_find_community"))?;
  53
  54     // Blank out deleted or removed info
  55     if community_view.community.deleted || community_view.community.removed {
  56       community_view.community = community_view.community.blank_out_deleted_or_removed_info();
  57     }
  58
  59     let moderators: Vec<CommunityModeratorView> = blocking(context.pool(), move |conn| {
  60       CommunityModeratorView::for_community(conn, community_id)
  61     })
  62     .await?
  63     .map_err(|_| ApiError::err("couldnt_find_community"))?;
  64
  65     let online = context
  66       .chat_server()
  67       .send(GetCommunityUsersOnline { community_id })
  68       .await
  69       .unwrap_or(1);
  70
  71     let res = GetCommunityResponse {
  72       community_view,
  73       moderators,
  74       online,
  75     };
  76
  77     // Return the jwt
  78     Ok(res)
  79   }
  80 }
  81
  82 #[async_trait::async_trait(?Send)]
  83 impl PerformCrud for ListCommunities {
  84   type Response = ListCommunitiesResponse;
  85
  86   async fn perform(
  87     &self,
  88     context: &Data<LemmyContext>,
  89     _websocket_id: Option<ConnectionId>,
  90   ) -> Result<ListCommunitiesResponse, LemmyError> {
  91     let data: &ListCommunities = self;
  92     let local_user_view = get_local_user_view_from_jwt_opt(&data.auth, context.pool()).await?;
  93
  94     let person_id = local_user_view.to_owned().map(|l| l.person.id);
  95
  96     // Don't show NSFW by default
  97     let show_nsfw = match &local_user_view {
  98       Some(uv) => uv.local_user.show_nsfw,
  99       None => false,
 100     };
 101
 102     let sort: Option<SortType> = from_opt_str_to_opt_enum(&data.sort);
 103     let listing_type: Option<ListingType> = from_opt_str_to_opt_enum(&data.type_);
 104
 105     let page = data.page;
 106     let limit = data.limit;
 107     let mut communities = blocking(context.pool(), move |conn| {
 108       CommunityQueryBuilder::create(conn)
 109         .listing_type(listing_type)
 110         .sort(sort)
 111         .show_nsfw(show_nsfw)
 112         .my_person_id(person_id)
 113         .page(page)
 114         .limit(limit)
 115         .list()
 116     })
 117     .await??;
 118
 119     // Blank out deleted or removed info
 120     for cv in communities
 121       .iter_mut()
 122       .filter(|cv| cv.community.deleted || cv.community.removed)
 123     {
 124       cv.community = cv.to_owned().community.blank_out_deleted_or_removed_info();
 125     }
 126
 127     // Return the jwt
 128     Ok(ListCommunitiesResponse { communities })
 129   }
 130 }