crates/api_crud/src/post/list.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   post::{GetPosts, GetPostsResponse},
   5   utils::{
   6     blocking,
   7     check_private_instance,
   8     get_local_user_view_from_jwt_opt,
   9     listing_type_with_site_default,
  10   },
  11 };
  12 use lemmy_apub::{fetcher::resolve_actor_identifier, objects::community::ApubCommunity};
  13 use lemmy_db_schema::{source::community::Community, traits::DeleteableOrRemoveable};
  14 use lemmy_db_views::post_view::PostQuery;
  15 use lemmy_utils::{error::LemmyError, ConnectionId};
  16 use lemmy_websocket::LemmyContext;
  17
  18 #[async_trait::async_trait(?Send)]
  19 impl PerformCrud for GetPosts {
  20   type Response = GetPostsResponse;
  21
  22   #[tracing::instrument(skip(context, _websocket_id))]
  23   async fn perform(
  24     &self,
  25     context: &Data<LemmyContext>,
  26     _websocket_id: Option<ConnectionId>,
  27   ) -> Result<GetPostsResponse, LemmyError> {
  28     let data: &GetPosts = self;
  29     let local_user_view =
  30       get_local_user_view_from_jwt_opt(data.auth.as_ref(), context.pool(), context.secret())
  31         .await?;
  32
  33     check_private_instance(&local_user_view, context.pool()).await?;
  34
  35     let person_id = local_user_view.to_owned().map(|l| l.person.id);
  36
  37     let show_nsfw = local_user_view.as_ref().map(|t| t.local_user.show_nsfw);
  38     let show_bot_accounts = local_user_view
  39       .as_ref()
  40       .map(|t| t.local_user.show_bot_accounts);
  41     let show_read_posts = local_user_view
  42       .as_ref()
  43       .map(|t| t.local_user.show_read_posts);
  44
  45     let sort = data.sort;
  46     let listing_type = listing_type_with_site_default(data.type_, context.pool()).await?;
  47
  48     let page = data.page;
  49     let limit = data.limit;
  50     let community_id = data.community_id;
  51     let community_actor_id = if let Some(name) = &data.community_name {
  52       resolve_actor_identifier::<ApubCommunity, Community>(name, context)
  53         .await
  54         .ok()
  55         .map(|c| c.actor_id)
  56     } else {
  57       None
  58     };
  59     let saved_only = data.saved_only;
  60
  61     let mut posts = blocking(context.pool(), move |conn| {
  62       PostQuery::builder()
  63         .conn(conn)
  64         .listing_type(Some(listing_type))
  65         .sort(sort)
  66         .show_nsfw(show_nsfw)
  67         .show_bot_accounts(show_bot_accounts)
  68         .show_read_posts(show_read_posts)
  69         .community_id(community_id)
  70         .community_actor_id(community_actor_id)
  71         .saved_only(saved_only)
  72         .my_person_id(person_id)
  73         .page(page)
  74         .limit(limit)
  75         .build()
  76         .list()
  77     })
  78     .await?
  79     .map_err(|e| LemmyError::from_error_message(e, "couldnt_get_posts"))?;
  80
  81     // Blank out deleted or removed info for non-logged in users
  82     if person_id.is_none() {
  83       for pv in posts
  84         .iter_mut()
  85         .filter(|p| p.post.deleted || p.post.removed)
  86       {
  87         pv.post = pv.to_owned().post.blank_out_deleted_or_removed_info();
  88       }
  89
  90       for pv in posts
  91         .iter_mut()
  92         .filter(|p| p.community.deleted || p.community.removed)
  93       {
  94         pv.community = pv.to_owned().community.blank_out_deleted_or_removed_info();
  95       }
  96     }
  97
  98     Ok(GetPostsResponse { posts })
  99   }
 100 }