crates/api/src/community/add_mod.rs

   1 use crate::Perform;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   community::{AddModToCommunity, AddModToCommunityResponse},
   5   utils::{get_local_user_view_from_jwt, is_mod_or_admin},
   6 };
   7 use lemmy_apub::{
   8   objects::{community::ApubCommunity, person::ApubPerson},
   9   protocol::activities::community::{add_mod::AddMod, remove_mod::RemoveMod},
  10 };
  11 use lemmy_db_schema::{
  12   source::{
  13     community::{Community, CommunityModerator, CommunityModeratorForm},
  14     moderator::{ModAddCommunity, ModAddCommunityForm},
  15     person::Person,
  16   },
  17   traits::{Crud, Joinable},
  18 };
  19 use lemmy_db_views_actor::structs::CommunityModeratorView;
  20 use lemmy_utils::{error::LemmyError, ConnectionId};
  21 use lemmy_websocket::{messages::SendCommunityRoomMessage, LemmyContext, UserOperation};
  22
  23 #[async_trait::async_trait(?Send)]
  24 impl Perform for AddModToCommunity {
  25   type Response = AddModToCommunityResponse;
  26
  27   #[tracing::instrument(skip(context, websocket_id))]
  28   async fn perform(
  29     &self,
  30     context: &Data<LemmyContext>,
  31     websocket_id: Option<ConnectionId>,
  32   ) -> Result<AddModToCommunityResponse, LemmyError> {
  33     let data: &AddModToCommunity = self;
  34     let local_user_view =
  35       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  36
  37     let community_id = data.community_id;
  38
  39     // Verify that only mods or admins can add mod
  40     is_mod_or_admin(context.pool(), local_user_view.person.id, community_id).await?;
  41     let community = Community::read(context.pool(), community_id).await?;
  42     if local_user_view.person.admin && !community.local {
  43       return Err(LemmyError::from_message("not_a_moderator"));
  44     }
  45
  46     // Update in local database
  47     let community_moderator_form = CommunityModeratorForm {
  48       community_id: data.community_id,
  49       person_id: data.person_id,
  50     };
  51     if data.added {
  52       CommunityModerator::join(context.pool(), &community_moderator_form)
  53         .await
  54         .map_err(|e| LemmyError::from_error_message(e, "community_moderator_already_exists"))?;
  55     } else {
  56       CommunityModerator::leave(context.pool(), &community_moderator_form)
  57         .await
  58         .map_err(|e| LemmyError::from_error_message(e, "community_moderator_already_exists"))?;
  59     }
  60
  61     // Mod tables
  62     let form = ModAddCommunityForm {
  63       mod_person_id: local_user_view.person.id,
  64       other_person_id: data.person_id,
  65       community_id: data.community_id,
  66       removed: Some(!data.added),
  67     };
  68
  69     ModAddCommunity::create(context.pool(), &form).await?;
  70
  71     // Send to federated instances
  72     let updated_mod_id = data.person_id;
  73     let updated_mod: ApubPerson = Person::read(context.pool(), updated_mod_id).await?.into();
  74     let community: ApubCommunity = community.into();
  75     if data.added {
  76       AddMod::send(
  77         &community,
  78         &updated_mod,
  79         &local_user_view.person.into(),
  80         context,
  81       )
  82       .await?;
  83     } else {
  84       RemoveMod::send(
  85         &community,
  86         &updated_mod,
  87         &local_user_view.person.into(),
  88         context,
  89       )
  90       .await?;
  91     }
  92
  93     // Note: in case a remote mod is added, this returns the old moderators list, it will only get
  94     //       updated once we receive an activity from the community (like `Announce/Add/Moderator`)
  95     let community_id = data.community_id;
  96     let moderators = CommunityModeratorView::for_community(context.pool(), community_id).await?;
  97
  98     let res = AddModToCommunityResponse { moderators };
  99     context.chat_server().do_send(SendCommunityRoomMessage {
 100       op: UserOperation::AddModToCommunity,
 101       response: res.clone(),
 102       community_id,
 103       websocket_id,
 104     });
 105     Ok(res)
 106   }
 107 }