crates/api_crud/src/private_message/delete.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   blocking,
   5   get_local_user_view_from_jwt,
   6   person::{DeletePrivateMessage, PrivateMessageResponse},
   7 };
   8 use lemmy_apub::activities::private_message::{
   9   delete::DeletePrivateMessage as DeletePrivateMessageApub,
  10   undo_delete::UndoDeletePrivateMessage,
  11 };
  12 use lemmy_db_queries::{source::private_message::PrivateMessage_, Crud, DeleteableOrRemoveable};
  13 use lemmy_db_schema::source::private_message::PrivateMessage;
  14 use lemmy_db_views::{local_user_view::LocalUserView, private_message_view::PrivateMessageView};
  15 use lemmy_utils::{ApiError, ConnectionId, LemmyError};
  16 use lemmy_websocket::{messages::SendUserRoomMessage, LemmyContext, UserOperationCrud};
  17
  18 #[async_trait::async_trait(?Send)]
  19 impl PerformCrud for DeletePrivateMessage {
  20   type Response = PrivateMessageResponse;
  21
  22   async fn perform(
  23     &self,
  24     context: &Data<LemmyContext>,
  25     websocket_id: Option<ConnectionId>,
  26   ) -> Result<PrivateMessageResponse, LemmyError> {
  27     let data: &DeletePrivateMessage = self;
  28     let local_user_view = get_local_user_view_from_jwt(&data.auth, context.pool()).await?;
  29
  30     // Checking permissions
  31     let private_message_id = data.private_message_id;
  32     let orig_private_message = blocking(context.pool(), move |conn| {
  33       PrivateMessage::read(conn, private_message_id)
  34     })
  35     .await??;
  36     if local_user_view.person.id != orig_private_message.creator_id {
  37       return Err(ApiError::err("no_private_message_edit_allowed").into());
  38     }
  39
  40     // Doing the update
  41     let private_message_id = data.private_message_id;
  42     let deleted = data.deleted;
  43     let updated_private_message = blocking(context.pool(), move |conn| {
  44       PrivateMessage::update_deleted(conn, private_message_id, deleted)
  45     })
  46     .await?
  47     .map_err(|_| ApiError::err("couldnt_update_private_message"))?;
  48
  49     // Send the apub update
  50     if data.deleted {
  51       DeletePrivateMessageApub::send(
  52         &local_user_view.person,
  53         &updated_private_message.blank_out_deleted_or_removed_info(),
  54         context,
  55       )
  56       .await?;
  57     } else {
  58       UndoDeletePrivateMessage::send(&local_user_view.person, &updated_private_message, context)
  59         .await?;
  60     }
  61
  62     let private_message_id = data.private_message_id;
  63     let mut private_message_view = blocking(context.pool(), move |conn| {
  64       PrivateMessageView::read(conn, private_message_id)
  65     })
  66     .await??;
  67
  68     // Blank out deleted or removed info
  69     if deleted {
  70       private_message_view.private_message = private_message_view
  71         .private_message
  72         .blank_out_deleted_or_removed_info();
  73     }
  74
  75     let res = PrivateMessageResponse {
  76       private_message_view,
  77     };
  78
  79     // Send notifications to the local recipient, if one exists
  80     let recipient_id = orig_private_message.recipient_id;
  81     if let Ok(local_recipient) = blocking(context.pool(), move |conn| {
  82       LocalUserView::read_person(conn, recipient_id)
  83     })
  84     .await?
  85     {
  86       let local_recipient_id = local_recipient.local_user.id;
  87       context.chat_server().do_send(SendUserRoomMessage {
  88         op: UserOperationCrud::DeletePrivateMessage,
  89         response: res.clone(),
  90         local_recipient_id,
  91         websocket_id,
  92       });
  93     }
  94
  95     Ok(res)
  96   }
  97 }