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

   1 use crate::{
   2   activities::{
   3     community::{announce::GetCommunity, send_activity_in_community},
   4     generate_activity_id,
   5     verify_activity,
   6     verify_is_public,
   7     verify_mod_action,
   8     verify_person_in_community,
   9   },
  10   activity_lists::AnnouncableActivities,
  11   objects::{community::ApubCommunity, person::ApubPerson},
  12   protocol::activities::community::block_user::BlockUserFromCommunity,
  13 };
  14 use activitystreams_kinds::{activity::BlockType, public};
  15 use lemmy_api_common::blocking;
  16 use lemmy_apub_lib::{
  17   data::Data,
  18   object_id::ObjectId,
  19   traits::{ActivityHandler, ActorType},
  20 };
  21 use lemmy_db_schema::{
  22   source::community::{
  23     CommunityFollower,
  24     CommunityFollowerForm,
  25     CommunityPersonBan,
  26     CommunityPersonBanForm,
  27   },
  28   traits::{Bannable, Followable},
  29 };
  30 use lemmy_utils::LemmyError;
  31 use lemmy_websocket::LemmyContext;
  32
  33 impl BlockUserFromCommunity {
  34   pub(in crate::activities::community) fn new(
  35     community: &ApubCommunity,
  36     target: &ApubPerson,
  37     actor: &ApubPerson,
  38     context: &LemmyContext,
  39   ) -> Result<BlockUserFromCommunity, LemmyError> {
  40     Ok(BlockUserFromCommunity {
  41       actor: ObjectId::new(actor.actor_id()),
  42       to: vec![public()],
  43       object: ObjectId::new(target.actor_id()),
  44       cc: vec![community.actor_id()],
  45       target: ObjectId::new(community.actor_id()),
  46       kind: BlockType::Block,
  47       id: generate_activity_id(
  48         BlockType::Block,
  49         &context.settings().get_protocol_and_hostname(),
  50       )?,
  51       unparsed: Default::default(),
  52     })
  53   }
  54
  55   #[tracing::instrument(skip_all)]
  56   pub async fn send(
  57     community: &ApubCommunity,
  58     target: &ApubPerson,
  59     actor: &ApubPerson,
  60     context: &LemmyContext,
  61   ) -> Result<(), LemmyError> {
  62     let block = BlockUserFromCommunity::new(community, target, actor, context)?;
  63     let block_id = block.id.clone();
  64
  65     let activity = AnnouncableActivities::BlockUserFromCommunity(block);
  66     let inboxes = vec![target.shared_inbox_or_inbox_url()];
  67     send_activity_in_community(activity, &block_id, actor, community, inboxes, context).await
  68   }
  69 }
  70
  71 #[async_trait::async_trait(?Send)]
  72 impl ActivityHandler for BlockUserFromCommunity {
  73   type DataType = LemmyContext;
  74
  75   #[tracing::instrument(skip_all)]
  76   async fn verify(
  77     &self,
  78     context: &Data<LemmyContext>,
  79     request_counter: &mut i32,
  80   ) -> Result<(), LemmyError> {
  81     verify_is_public(&self.to, &self.cc)?;
  82     verify_activity(&self.id, self.actor.inner(), &context.settings())?;
  83     let community = self.get_community(context, request_counter).await?;
  84     verify_person_in_community(&self.actor, &community, context, request_counter).await?;
  85     verify_mod_action(&self.actor, &community, context, request_counter).await?;
  86     Ok(())
  87   }
  88
  89   #[tracing::instrument(skip_all)]
  90   async fn receive(
  91     self,
  92     context: &Data<LemmyContext>,
  93     request_counter: &mut i32,
  94   ) -> Result<(), LemmyError> {
  95     let community = self.get_community(context, request_counter).await?;
  96     let blocked_user = self.object.dereference(context, request_counter).await?;
  97
  98     let community_user_ban_form = CommunityPersonBanForm {
  99       community_id: community.id,
 100       person_id: blocked_user.id,
 101     };
 102
 103     blocking(context.pool(), move |conn: &'_ _| {
 104       CommunityPersonBan::ban(conn, &community_user_ban_form)
 105     })
 106     .await??;
 107
 108     // Also unsubscribe them from the community, if they are subscribed
 109     let community_follower_form = CommunityFollowerForm {
 110       community_id: community.id,
 111       person_id: blocked_user.id,
 112       pending: false,
 113     };
 114     blocking(context.pool(), move |conn: &'_ _| {
 115       CommunityFollower::unfollow(conn, &community_follower_form)
 116     })
 117     .await?
 118     .ok();
 119
 120     Ok(())
 121   }
 122 }
 123
 124 #[async_trait::async_trait(?Send)]
 125 impl GetCommunity for BlockUserFromCommunity {
 126   #[tracing::instrument(skip_all)]
 127   async fn get_community(
 128     &self,
 129     context: &LemmyContext,
 130     request_counter: &mut i32,
 131   ) -> Result<ApubCommunity, LemmyError> {
 132     self.target.dereference(context, request_counter).await
 133   }
 134 }