crates/apub/src/protocol/activities/deletion/undo_delete.rs

   1 use crate::{
   2   activities::verify_community_matches,
   3   local_instance,
   4   objects::{community::ApubCommunity, person::ApubPerson},
   5   protocol::{activities::deletion::delete::Delete, InCommunity},
   6 };
   7 use activitypub_federation::{core::object_id::ObjectId, deser::helpers::deserialize_one_or_many};
   8 use activitystreams_kinds::activity::UndoType;
   9 use lemmy_api_common::context::LemmyContext;
  10 use lemmy_utils::error::LemmyError;
  11 use serde::{Deserialize, Serialize};
  12 use serde_with::skip_serializing_none;
  13 use url::Url;
  14
  15 #[skip_serializing_none]
  16 #[derive(Clone, Debug, Deserialize, Serialize)]
  17 #[serde(rename_all = "camelCase")]
  18 pub struct UndoDelete {
  19   pub(crate) actor: ObjectId<ApubPerson>,
  20   #[serde(deserialize_with = "deserialize_one_or_many")]
  21   pub(crate) to: Vec<Url>,
  22   pub(crate) object: Delete,
  23   #[serde(rename = "type")]
  24   pub(crate) kind: UndoType,
  25   pub(crate) id: Url,
  26   pub(crate) audience: Option<ObjectId<ApubCommunity>>,
  27
  28   #[serde(deserialize_with = "deserialize_one_or_many", default)]
  29   #[serde(skip_serializing_if = "Vec::is_empty")]
  30   pub(crate) cc: Vec<Url>,
  31 }
  32
  33 #[async_trait::async_trait(?Send)]
  34 impl InCommunity for UndoDelete {
  35   async fn community(
  36     &self,
  37     context: &LemmyContext,
  38     request_counter: &mut i32,
  39   ) -> Result<ApubCommunity, LemmyError> {
  40     let object_community = self.object.community(context, request_counter).await?;
  41     if let Some(audience) = &self.audience {
  42       let audience = audience
  43         .dereference(context, local_instance(context).await, request_counter)
  44         .await?;
  45       verify_community_matches(&audience, object_community.id)?;
  46       Ok(audience)
  47     } else {
  48       Ok(object_community)
  49     }
  50   }
  51 }