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::{blocking, check_private_instance, get_local_user_view_from_jwt_opt},
   6 };
   7 use lemmy_apub::{fetcher::resolve_actor_identifier, objects::community::ApubCommunity};
   8 use lemmy_db_schema::{
   9   source::{community::Community, site::Site},
  10   traits::DeleteableOrRemoveable,
  11   ListingType,
  12 };
  13 use lemmy_db_views::post_view::PostQueryBuilder;
  14 use lemmy_utils::{ConnectionId, LemmyError};
  15 use lemmy_websocket::LemmyContext;
  16 use std::str::FromStr;
  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: ListingType = match data.type_ {
  47       Some(l) => l,
  48       None => {
  49         let site = blocking(context.pool(), Site::read_local_site).await??;
  50         ListingType::from_str(&site.default_post_listing_type)?
  51       }
  52     };
  53     let page = data.page;
  54     let limit = data.limit;
  55     let community_id = data.community_id;
  56     let community_actor_id = if let Some(name) = &data.community_name {
  57       resolve_actor_identifier::<ApubCommunity, Community>(name, context)
  58         .await
  59         .ok()
  60         .map(|c| c.actor_id)
  61     } else {
  62       None
  63     };
  64     let saved_only = data.saved_only;
  65
  66     let mut posts = blocking(context.pool(), move |conn| {
  67       PostQueryBuilder::create(conn)
  68         .listing_type(listing_type)
  69         .sort(sort)
  70         .show_nsfw(show_nsfw)
  71         .show_bot_accounts(show_bot_accounts)
  72         .show_read_posts(show_read_posts)
  73         .community_id(community_id)
  74         .community_actor_id(community_actor_id)
  75         .saved_only(saved_only)
  76         .my_person_id(person_id)
  77         .page(page)
  78         .limit(limit)
  79         .list()
  80     })
  81     .await?
  82     .map_err(|e| LemmyError::from_error_message(e, "couldnt_get_posts"))?;
  83
  84     // Blank out deleted or removed info for non-logged in users
  85     if person_id.is_none() {
  86       for pv in posts
  87         .iter_mut()
  88         .filter(|p| p.post.deleted || p.post.removed)
  89       {
  90         pv.post = pv.to_owned().post.blank_out_deleted_or_removed_info();
  91       }
  92
  93       for pv in posts
  94         .iter_mut()
  95         .filter(|p| p.community.deleted || p.community.removed)
  96       {
  97         pv.community = pv.to_owned().community.blank_out_deleted_or_removed_info();
  98       }
  99     }
 100
 101     Ok(GetPostsResponse { posts })
 102   }
 103 }