crates/apub/src/protocol/activities/block/block_user.rs

   1 use crate::{
   2   activities::{block::SiteOrCommunity, verify_community_matches},
   3   local_instance,
   4   objects::{community::ApubCommunity, person::ApubPerson},
   5   protocol::InCommunity,
   6 };
   7 use activitypub_federation::{core::object_id::ObjectId, deser::helpers::deserialize_one_or_many};
   8 use activitystreams_kinds::activity::BlockType;
   9 use anyhow::anyhow;
  10 use chrono::{DateTime, FixedOffset};
  11 use lemmy_utils::error::LemmyError;
  12 use lemmy_websocket::LemmyContext;
  13 use serde::{Deserialize, Serialize};
  14 use serde_with::skip_serializing_none;
  15 use url::Url;
  16
  17 #[skip_serializing_none]
  18 #[derive(Clone, Debug, Deserialize, Serialize)]
  19 #[serde(rename_all = "camelCase")]
  20 pub struct BlockUser {
  21   pub(crate) actor: ObjectId<ApubPerson>,
  22   #[serde(deserialize_with = "deserialize_one_or_many")]
  23   pub(crate) to: Vec<Url>,
  24   pub(crate) object: ObjectId<ApubPerson>,
  25   #[serde(deserialize_with = "deserialize_one_or_many")]
  26   pub(crate) cc: Vec<Url>,
  27   pub(crate) target: ObjectId<SiteOrCommunity>,
  28   #[serde(rename = "type")]
  29   pub(crate) kind: BlockType,
  30   pub(crate) id: Url,
  31   pub(crate) audience: Option<ObjectId<ApubCommunity>>,
  32
  33   /// Quick and dirty solution.
  34   /// TODO: send a separate Delete activity instead
  35   pub(crate) remove_data: Option<bool>,
  36   /// block reason, written to mod log
  37   pub(crate) summary: Option<String>,
  38   pub(crate) expires: Option<DateTime<FixedOffset>>,
  39 }
  40
  41 #[async_trait::async_trait(?Send)]
  42 impl InCommunity for BlockUser {
  43   async fn community(
  44     &self,
  45     context: &LemmyContext,
  46     request_counter: &mut i32,
  47   ) -> Result<ApubCommunity, LemmyError> {
  48     let target = self
  49       .target
  50       .dereference(context, local_instance(context).await, request_counter)
  51       .await?;
  52     let target_community = match target {
  53       SiteOrCommunity::Community(c) => c,
  54       SiteOrCommunity::Site(_) => return Err(anyhow!("activity is not in community").into()),
  55     };
  56     if let Some(audience) = &self.audience {
  57       let audience = audience
  58         .dereference(context, local_instance(context).await, request_counter)
  59         .await?;
  60       verify_community_matches(&audience, target_community.id)?;
  61       Ok(audience)
  62     } else {
  63       Ok(target_community)
  64     }
  65   }
  66 }