crates/api_crud/src/post/list.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   blocking,
   5   check_private_instance,
   6   get_local_user_view_from_jwt_opt,
   7   post::{GetPosts, GetPostsResponse},
   8 };
   9 use lemmy_apub::{fetcher::resolve_actor_identifier, objects::community::ApubCommunity};
  10 use lemmy_db_schema::{
  11   from_opt_str_to_opt_enum,
  12   source::{community::Community, site::Site},
  13   traits::DeleteableOrRemoveable,
  14   ListingType,
  15   SortType,
  16 };
  17 use lemmy_db_views::post_view::PostQueryBuilder;
  18 use lemmy_utils::{ConnectionId, LemmyError};
  19 use lemmy_websocket::LemmyContext;
  20 use std::str::FromStr;
  21
  22 #[async_trait::async_trait(?Send)]
  23 impl PerformCrud for GetPosts {
  24   type Response = GetPostsResponse;
  25
  26   #[tracing::instrument(skip(context, _websocket_id))]
  27   async fn perform(
  28     &self,
  29     context: &Data<LemmyContext>,
  30     _websocket_id: Option<ConnectionId>,
  31   ) -> Result<GetPostsResponse, LemmyError> {
  32     let data: &GetPosts = self;
  33     let local_user_view =
  34       get_local_user_view_from_jwt_opt(data.auth.as_ref(), context.pool(), context.secret())
  35         .await?;
  36
  37     check_private_instance(&local_user_view, context.pool()).await?;
  38
  39     let person_id = local_user_view.to_owned().map(|l| l.person.id);
  40
  41     let show_nsfw = local_user_view.as_ref().map(|t| t.local_user.show_nsfw);
  42     let show_bot_accounts = local_user_view
  43       .as_ref()
  44       .map(|t| t.local_user.show_bot_accounts);
  45     let show_read_posts = local_user_view
  46       .as_ref()
  47       .map(|t| t.local_user.show_read_posts);
  48
  49     let sort: Option<SortType> = from_opt_str_to_opt_enum(&data.sort);
  50     let listing_type: ListingType = match from_opt_str_to_opt_enum(&data.type_) {
  51       Some(l) => l,
  52       None => {
  53         let site = blocking(context.pool(), Site::read_local_site).await??;
  54         ListingType::from_str(&site.default_post_listing_type)?
  55       }
  56     };
  57
  58     let page = data.page;
  59     let limit = data.limit;
  60     let community_id = data.community_id;
  61     let community_actor_id = if let Some(name) = &data.community_name {
  62       resolve_actor_identifier::<ApubCommunity, Community>(name, context)
  63         .await
  64         .ok()
  65         .map(|c| c.actor_id)
  66     } else {
  67       None
  68     };
  69     let saved_only = data.saved_only;
  70
  71     let mut posts = blocking(context.pool(), move |conn| {
  72       PostQueryBuilder::create(conn)
  73         .listing_type(listing_type)
  74         .sort(sort)
  75         .show_nsfw(show_nsfw)
  76         .show_bot_accounts(show_bot_accounts)
  77         .show_read_posts(show_read_posts)
  78         .community_id(community_id)
  79         .community_actor_id(community_actor_id)
  80         .saved_only(saved_only)
  81         .my_person_id(person_id)
  82         .page(page)
  83         .limit(limit)
  84         .list()
  85     })
  86     .await?
  87     .map_err(|e| LemmyError::from_error_message(e, "couldnt_get_posts"))?;
  88
  89     // Blank out deleted or removed info for non-logged in users
  90     if person_id.is_none() {
  91       for pv in posts
  92         .iter_mut()
  93         .filter(|p| p.post.deleted || p.post.removed)
  94       {
  95         pv.post = pv.to_owned().post.blank_out_deleted_or_removed_info();
  96       }
  97
  98       for pv in posts
  99         .iter_mut()
 100         .filter(|p| p.community.deleted || p.community.removed)
 101       {
 102         pv.community = pv.to_owned().community.blank_out_deleted_or_removed_info();
 103       }
 104     }
 105
 106     Ok(GetPostsResponse { posts })
 107   }
 108 }