crates/apub/src/activities/community/undo_block_user.rs

   1 use crate::{
   2   activities::{
   3     community::{
   4       announce::{AnnouncableActivities, GetCommunity},
   5       block_user::BlockUserFromCommunity,
   6       send_to_community,
   7     },
   8     generate_activity_id,
   9     verify_activity,
  10     verify_is_public,
  11     verify_mod_action,
  12     verify_person_in_community,
  13   },
  14   fetcher::object_id::ObjectId,
  15   objects::{community::ApubCommunity, person::ApubPerson},
  16 };
  17 use activitystreams::{activity::kind::UndoType, public, unparsed::Unparsed};
  18 use lemmy_api_common::blocking;
  19 use lemmy_apub_lib::{
  20   data::Data,
  21   traits::{ActivityFields, ActivityHandler, ActorType},
  22 };
  23 use lemmy_db_schema::{
  24   source::community::{CommunityPersonBan, CommunityPersonBanForm},
  25   traits::Bannable,
  26 };
  27 use lemmy_utils::LemmyError;
  28 use lemmy_websocket::LemmyContext;
  29 use serde::{Deserialize, Serialize};
  30 use url::Url;
  31
  32 #[derive(Clone, Debug, Deserialize, Serialize, ActivityFields)]
  33 #[serde(rename_all = "camelCase")]
  34 pub struct UndoBlockUserFromCommunity {
  35   actor: ObjectId<ApubPerson>,
  36   to: Vec<Url>,
  37   object: BlockUserFromCommunity,
  38   cc: Vec<Url>,
  39   #[serde(rename = "type")]
  40   kind: UndoType,
  41   id: Url,
  42   #[serde(flatten)]
  43   unparsed: Unparsed,
  44 }
  45
  46 impl UndoBlockUserFromCommunity {
  47   pub async fn send(
  48     community: &ApubCommunity,
  49     target: &ApubPerson,
  50     actor: &ApubPerson,
  51     context: &LemmyContext,
  52   ) -> Result<(), LemmyError> {
  53     let block = BlockUserFromCommunity::new(community, target, actor, context)?;
  54
  55     let id = generate_activity_id(
  56       UndoType::Undo,
  57       &context.settings().get_protocol_and_hostname(),
  58     )?;
  59     let undo = UndoBlockUserFromCommunity {
  60       actor: ObjectId::new(actor.actor_id()),
  61       to: vec![public()],
  62       object: block,
  63       cc: vec![community.actor_id()],
  64       kind: UndoType::Undo,
  65       id: id.clone(),
  66       unparsed: Default::default(),
  67     };
  68
  69     let activity = AnnouncableActivities::UndoBlockUserFromCommunity(undo);
  70     let inboxes = vec![target.shared_inbox_or_inbox_url()];
  71     send_to_community(activity, &id, actor, community, inboxes, context).await
  72   }
  73 }
  74
  75 #[async_trait::async_trait(?Send)]
  76 impl ActivityHandler for UndoBlockUserFromCommunity {
  77   type DataType = LemmyContext;
  78   async fn verify(
  79     &self,
  80     context: &Data<LemmyContext>,
  81     request_counter: &mut i32,
  82   ) -> Result<(), LemmyError> {
  83     verify_is_public(&self.to)?;
  84     verify_activity(self, &context.settings())?;
  85     let community = self.get_community(context, request_counter).await?;
  86     verify_person_in_community(&self.actor, &community, context, request_counter).await?;
  87     verify_mod_action(&self.actor, &community, context, request_counter).await?;
  88     self.object.verify(context, request_counter).await?;
  89     Ok(())
  90   }
  91
  92   async fn receive(
  93     self,
  94     context: &Data<LemmyContext>,
  95     request_counter: &mut i32,
  96   ) -> Result<(), LemmyError> {
  97     let community = self.get_community(context, request_counter).await?;
  98     let blocked_user = self
  99       .object
 100       .object
 101       .dereference(context, request_counter)
 102       .await?;
 103
 104     let community_user_ban_form = CommunityPersonBanForm {
 105       community_id: community.id,
 106       person_id: blocked_user.id,
 107     };
 108
 109     blocking(context.pool(), move |conn: &'_ _| {
 110       CommunityPersonBan::unban(conn, &community_user_ban_form)
 111     })
 112     .await??;
 113
 114     Ok(())
 115   }
 116 }
 117
 118 #[async_trait::async_trait(?Send)]
 119 impl GetCommunity for UndoBlockUserFromCommunity {
 120   async fn get_community(
 121     &self,
 122     context: &LemmyContext,
 123     request_counter: &mut i32,
 124   ) -> Result<ApubCommunity, LemmyError> {
 125     self.object.get_community(context, request_counter).await
 126   }
 127 }