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

   1 use crate::{
   2   activities::{
   3     community::{
   4       announce::GetCommunity,
   5       get_community_from_moderators_url,
   6       send_activity_in_community,
   7     },
   8     generate_activity_id,
   9     verify_activity,
  10     verify_add_remove_moderator_target,
  11     verify_is_public,
  12     verify_mod_action,
  13     verify_person_in_community,
  14   },
  15   activity_lists::AnnouncableActivities,
  16   generate_moderators_url,
  17   objects::{community::ApubCommunity, person::ApubPerson},
  18   protocol::activities::community::remove_mod::RemoveMod,
  19 };
  20 use activitystreams::{activity::kind::RemoveType, public};
  21 use lemmy_api_common::blocking;
  22 use lemmy_apub_lib::{
  23   data::Data,
  24   object_id::ObjectId,
  25   traits::{ActivityHandler, ActorType},
  26 };
  27 use lemmy_db_schema::{
  28   source::community::{CommunityModerator, CommunityModeratorForm},
  29   traits::Joinable,
  30 };
  31 use lemmy_utils::LemmyError;
  32 use lemmy_websocket::LemmyContext;
  33
  34 impl RemoveMod {
  35   pub async fn send(
  36     community: &ApubCommunity,
  37     removed_mod: &ApubPerson,
  38     actor: &ApubPerson,
  39     context: &LemmyContext,
  40   ) -> Result<(), LemmyError> {
  41     let id = generate_activity_id(
  42       RemoveType::Remove,
  43       &context.settings().get_protocol_and_hostname(),
  44     )?;
  45     let remove = RemoveMod {
  46       actor: ObjectId::new(actor.actor_id()),
  47       to: vec![public()],
  48       object: ObjectId::new(removed_mod.actor_id()),
  49       target: generate_moderators_url(&community.actor_id)?.into(),
  50       id: id.clone(),
  51       cc: vec![community.actor_id()],
  52       kind: RemoveType::Remove,
  53       unparsed: Default::default(),
  54     };
  55
  56     let activity = AnnouncableActivities::RemoveMod(remove);
  57     let inboxes = vec![removed_mod.shared_inbox_or_inbox_url()];
  58     send_activity_in_community(activity, &id, actor, community, inboxes, context).await
  59   }
  60 }
  61
  62 #[async_trait::async_trait(?Send)]
  63 impl ActivityHandler for RemoveMod {
  64   type DataType = LemmyContext;
  65   async fn verify(
  66     &self,
  67     context: &Data<LemmyContext>,
  68     request_counter: &mut i32,
  69   ) -> Result<(), LemmyError> {
  70     verify_is_public(&self.to, &self.cc)?;
  71     verify_activity(&self.id, self.actor.inner(), &context.settings())?;
  72     let community = self.get_community(context, request_counter).await?;
  73     verify_person_in_community(&self.actor, &community, context, request_counter).await?;
  74     verify_mod_action(&self.actor, &community, context, request_counter).await?;
  75     verify_add_remove_moderator_target(&self.target, &community)?;
  76     Ok(())
  77   }
  78
  79   async fn receive(
  80     self,
  81     context: &Data<LemmyContext>,
  82     request_counter: &mut i32,
  83   ) -> Result<(), LemmyError> {
  84     let community = self.get_community(context, request_counter).await?;
  85     let remove_mod = self.object.dereference(context, request_counter).await?;
  86
  87     let form = CommunityModeratorForm {
  88       community_id: community.id,
  89       person_id: remove_mod.id,
  90     };
  91     blocking(context.pool(), move |conn| {
  92       CommunityModerator::leave(conn, &form)
  93     })
  94     .await??;
  95     // TODO: send websocket notification about removed mod
  96     Ok(())
  97   }
  98 }
  99
 100 #[async_trait::async_trait(?Send)]
 101 impl GetCommunity for RemoveMod {
 102   async fn get_community(
 103     &self,
 104     context: &LemmyContext,
 105     request_counter: &mut i32,
 106   ) -> Result<ApubCommunity, LemmyError> {
 107     get_community_from_moderators_url(&self.target, context, request_counter).await
 108   }
 109 }