crates/api_crud/src/post/delete.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   post::{DeletePost, PostResponse},
   5   utils::{check_community_ban, check_community_deleted_or_removed, get_local_user_view_from_jwt},
   6 };
   7 use lemmy_apub::activities::deletion::{send_apub_delete_in_community, DeletableObjects};
   8 use lemmy_db_schema::{
   9   source::{
  10     community::Community,
  11     post::{Post, PostUpdateForm},
  12   },
  13   traits::Crud,
  14 };
  15 use lemmy_utils::{error::LemmyError, ConnectionId};
  16 use lemmy_websocket::{send::send_post_ws_message, LemmyContext, UserOperationCrud};
  17
  18 #[async_trait::async_trait(?Send)]
  19 impl PerformCrud for DeletePost {
  20   type Response = PostResponse;
  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<PostResponse, LemmyError> {
  28     let data: &DeletePost = self;
  29     let local_user_view =
  30       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  31
  32     let post_id = data.post_id;
  33     let orig_post = Post::read(context.pool(), post_id).await?;
  34
  35     // Dont delete it if its already been deleted.
  36     if orig_post.deleted == data.deleted {
  37       return Err(LemmyError::from_message("couldnt_update_post"));
  38     }
  39
  40     check_community_ban(
  41       local_user_view.person.id,
  42       orig_post.community_id,
  43       context.pool(),
  44     )
  45     .await?;
  46     check_community_deleted_or_removed(orig_post.community_id, context.pool()).await?;
  47
  48     // Verify that only the creator can delete
  49     if !Post::is_post_creator(local_user_view.person.id, orig_post.creator_id) {
  50       return Err(LemmyError::from_message("no_post_edit_allowed"));
  51     }
  52
  53     // Update the post
  54     let post_id = data.post_id;
  55     let deleted = data.deleted;
  56     let updated_post = Post::update(
  57       context.pool(),
  58       post_id,
  59       &PostUpdateForm::builder().deleted(Some(deleted)).build(),
  60     )
  61     .await?;
  62
  63     let res = send_post_ws_message(
  64       data.post_id,
  65       UserOperationCrud::DeletePost,
  66       websocket_id,
  67       Some(local_user_view.person.id),
  68       context,
  69     )
  70     .await?;
  71
  72     // apub updates
  73     let community = Community::read(context.pool(), orig_post.community_id).await?;
  74     let deletable = DeletableObjects::Post(Box::new(updated_post.into()));
  75     send_apub_delete_in_community(
  76       local_user_view.person,
  77       community,
  78       deletable,
  79       None,
  80       deleted,
  81       context,
  82     )
  83     .await?;
  84     Ok(res)
  85   }
  86 }