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   websocket::{send::send_post_ws_message, UserOperationCrud},
   7   LemmyContext,
   8 };
   9 use lemmy_apub::activities::deletion::{send_apub_delete_in_community, DeletableObjects};
  10 use lemmy_db_schema::{
  11   source::{
  12     community::Community,
  13     post::{Post, PostUpdateForm},
  14   },
  15   traits::Crud,
  16 };
  17 use lemmy_utils::{error::LemmyError, ConnectionId};
  18
  19 #[async_trait::async_trait(?Send)]
  20 impl PerformCrud for DeletePost {
  21   type Response = PostResponse;
  22
  23   #[tracing::instrument(skip(context, websocket_id))]
  24   async fn perform(
  25     &self,
  26     context: &Data<LemmyContext>,
  27     websocket_id: Option<ConnectionId>,
  28   ) -> Result<PostResponse, LemmyError> {
  29     let data: &DeletePost = self;
  30     let local_user_view =
  31       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  32
  33     let post_id = data.post_id;
  34     let orig_post = Post::read(context.pool(), post_id).await?;
  35
  36     // Dont delete it if its already been deleted.
  37     if orig_post.deleted == data.deleted {
  38       return Err(LemmyError::from_message("couldnt_update_post"));
  39     }
  40
  41     check_community_ban(
  42       local_user_view.person.id,
  43       orig_post.community_id,
  44       context.pool(),
  45     )
  46     .await?;
  47     check_community_deleted_or_removed(orig_post.community_id, context.pool()).await?;
  48
  49     // Verify that only the creator can delete
  50     if !Post::is_post_creator(local_user_view.person.id, orig_post.creator_id) {
  51       return Err(LemmyError::from_message("no_post_edit_allowed"));
  52     }
  53
  54     // Update the post
  55     let post_id = data.post_id;
  56     let deleted = data.deleted;
  57     let updated_post = Post::update(
  58       context.pool(),
  59       post_id,
  60       &PostUpdateForm::builder().deleted(Some(deleted)).build(),
  61     )
  62     .await?;
  63
  64     let res = send_post_ws_message(
  65       data.post_id,
  66       UserOperationCrud::DeletePost,
  67       websocket_id,
  68       Some(local_user_view.person.id),
  69       context,
  70     )
  71     .await?;
  72
  73     // apub updates
  74     let community = Community::read(context.pool(), orig_post.community_id).await?;
  75     let deletable = DeletableObjects::Post(Box::new(updated_post.into()));
  76     send_apub_delete_in_community(
  77       local_user_view.person,
  78       community,
  79       deletable,
  80       None,
  81       deleted,
  82       context,
  83     )
  84     .await?;
  85     Ok(res)
  86   }
  87 }