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, fetcher::object_id::ObjectId, EndpointType};
   5 use lemmy_db_queries::{from_opt_str_to_opt_enum, DeleteableOrRemoveable, 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 =
  25       get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
  26     let person_id = local_user_view.map(|u| u.person.id);
  27
  28     let community_id = match data.id {
  29       Some(id) => id,
  30       None => {
  31         let name = data.name.to_owned().unwrap_or_else(|| "main".to_string());
  32         let community_actor_id =
  33           build_actor_id_from_shortname(EndpointType::Community, &name, &context.settings())?;
  34
  35         ObjectId::<Community>::new(community_actor_id)
  36           .dereference(context, &mut 0)
  37           .await
  38           .map_err(|e| ApiError::err("couldnt_find_community", e))?
  39           .id
  40       }
  41     };
  42
  43     let mut community_view = blocking(context.pool(), move |conn| {
  44       CommunityView::read(conn, community_id, person_id)
  45     })
  46     .await?
  47     .map_err(|e| ApiError::err("couldnt_find_community", e))?;
  48
  49     // Blank out deleted or removed info
  50     if community_view.community.deleted || community_view.community.removed {
  51       community_view.community = community_view.community.blank_out_deleted_or_removed_info();
  52     }
  53
  54     let moderators: Vec<CommunityModeratorView> = blocking(context.pool(), move |conn| {
  55       CommunityModeratorView::for_community(conn, community_id)
  56     })
  57     .await?
  58     .map_err(|e| ApiError::err("couldnt_find_community", e))?;
  59
  60     let online = context
  61       .chat_server()
  62       .send(GetCommunityUsersOnline { community_id })
  63       .await
  64       .unwrap_or(1);
  65
  66     let res = GetCommunityResponse {
  67       community_view,
  68       moderators,
  69       online,
  70     };
  71
  72     // Return the jwt
  73     Ok(res)
  74   }
  75 }
  76
  77 #[async_trait::async_trait(?Send)]
  78 impl PerformCrud for ListCommunities {
  79   type Response = ListCommunitiesResponse;
  80
  81   async fn perform(
  82     &self,
  83     context: &Data<LemmyContext>,
  84     _websocket_id: Option<ConnectionId>,
  85   ) -> Result<ListCommunitiesResponse, LemmyError> {
  86     let data: &ListCommunities = self;
  87     let local_user_view =
  88       get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
  89
  90     let person_id = local_user_view.to_owned().map(|l| l.person.id);
  91
  92     // Don't show NSFW by default
  93     let show_nsfw = match &local_user_view {
  94       Some(uv) => uv.local_user.show_nsfw,
  95       None => false,
  96     };
  97
  98     let sort: Option<SortType> = from_opt_str_to_opt_enum(&data.sort);
  99     let listing_type: Option<ListingType> = from_opt_str_to_opt_enum(&data.type_);
 100
 101     let page = data.page;
 102     let limit = data.limit;
 103     let mut communities = blocking(context.pool(), move |conn| {
 104       CommunityQueryBuilder::create(conn)
 105         .listing_type(listing_type)
 106         .sort(sort)
 107         .show_nsfw(show_nsfw)
 108         .my_person_id(person_id)
 109         .page(page)
 110         .limit(limit)
 111         .list()
 112     })
 113     .await??;
 114
 115     // Blank out deleted or removed info
 116     for cv in communities
 117       .iter_mut()
 118       .filter(|cv| cv.community.deleted || cv.community.removed)
 119     {
 120       cv.community = cv.to_owned().community.blank_out_deleted_or_removed_info();
 121     }
 122
 123     // Return the jwt
 124     Ok(ListCommunitiesResponse { communities })
 125   }
 126 }