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 =
  31       get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
  32     let person_id = local_user_view.map(|u| u.person.id);
  33
  34     let community_id = match data.id {
  35       Some(id) => id,
  36       None => {
  37         let name = data.name.to_owned().unwrap_or_else(|| "main".to_string());
  38         let community_actor_id =
  39           build_actor_id_from_shortname(EndpointType::Community, &name, &context.settings())?;
  40
  41         blocking(context.pool(), move |conn| {
  42           Community::read_from_apub_id(conn, &community_actor_id)
  43         })
  44         .await?
  45         .map_err(|_| ApiError::err("couldnt_find_community"))?
  46         .id
  47       }
  48     };
  49
  50     let mut community_view = blocking(context.pool(), move |conn| {
  51       CommunityView::read(conn, community_id, person_id)
  52     })
  53     .await?
  54     .map_err(|_| ApiError::err("couldnt_find_community"))?;
  55
  56     // Blank out deleted or removed info
  57     if community_view.community.deleted || community_view.community.removed {
  58       community_view.community = community_view.community.blank_out_deleted_or_removed_info();
  59     }
  60
  61     let moderators: Vec<CommunityModeratorView> = blocking(context.pool(), move |conn| {
  62       CommunityModeratorView::for_community(conn, community_id)
  63     })
  64     .await?
  65     .map_err(|_| ApiError::err("couldnt_find_community"))?;
  66
  67     let online = context
  68       .chat_server()
  69       .send(GetCommunityUsersOnline { community_id })
  70       .await
  71       .unwrap_or(1);
  72
  73     let res = GetCommunityResponse {
  74       community_view,
  75       moderators,
  76       online,
  77     };
  78
  79     // Return the jwt
  80     Ok(res)
  81   }
  82 }
  83
  84 #[async_trait::async_trait(?Send)]
  85 impl PerformCrud for ListCommunities {
  86   type Response = ListCommunitiesResponse;
  87
  88   async fn perform(
  89     &self,
  90     context: &Data<LemmyContext>,
  91     _websocket_id: Option<ConnectionId>,
  92   ) -> Result<ListCommunitiesResponse, LemmyError> {
  93     let data: &ListCommunities = self;
  94     let local_user_view =
  95       get_local_user_view_from_jwt_opt(&data.auth, context.pool(), context.secret()).await?;
  96
  97     let person_id = local_user_view.to_owned().map(|l| l.person.id);
  98
  99     // Don't show NSFW by default
 100     let show_nsfw = match &local_user_view {
 101       Some(uv) => uv.local_user.show_nsfw,
 102       None => false,
 103     };
 104
 105     let sort: Option<SortType> = from_opt_str_to_opt_enum(&data.sort);
 106     let listing_type: Option<ListingType> = from_opt_str_to_opt_enum(&data.type_);
 107
 108     let page = data.page;
 109     let limit = data.limit;
 110     let mut communities = blocking(context.pool(), move |conn| {
 111       CommunityQueryBuilder::create(conn)
 112         .listing_type(listing_type)
 113         .sort(sort)
 114         .show_nsfw(show_nsfw)
 115         .my_person_id(person_id)
 116         .page(page)
 117         .limit(limit)
 118         .list()
 119     })
 120     .await??;
 121
 122     // Blank out deleted or removed info
 123     for cv in communities
 124       .iter_mut()
 125       .filter(|cv| cv.community.deleted || cv.community.removed)
 126     {
 127       cv.community = cv.to_owned().community.blank_out_deleted_or_removed_info();
 128     }
 129
 130     // Return the jwt
 131     Ok(ListCommunitiesResponse { communities })
 132   }
 133 }