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   context::LemmyContext,
   6   utils::{is_mod_or_admin, local_user_view_from_jwt},
   7   websocket::UserOperation,
   8 };
   9 use lemmy_db_schema::{
  10   source::{
  11     community::{Community, CommunityModerator, CommunityModeratorForm},
  12     moderator::{ModAddCommunity, ModAddCommunityForm},
  13   },
  14   traits::{Crud, Joinable},
  15 };
  16 use lemmy_db_views_actor::structs::CommunityModeratorView;
  17 use lemmy_utils::{error::LemmyError, ConnectionId};
  18
  19 #[async_trait::async_trait(?Send)]
  20 impl Perform for AddModToCommunity {
  21   type Response = AddModToCommunityResponse;
  22
  23   #[tracing::instrument(skip(context, websocket_id))]
  24   async fn perform(
  25     &self,
  26     context: &Data<LemmyContext>,
  27     websocket_id: Option<ConnectionId>,
  28   ) -> Result<AddModToCommunityResponse, LemmyError> {
  29     let data: &AddModToCommunity = self;
  30     let local_user_view = local_user_view_from_jwt(&data.auth, context).await?;
  31
  32     let community_id = data.community_id;
  33
  34     // Verify that only mods or admins can add mod
  35     is_mod_or_admin(context.pool(), local_user_view.person.id, community_id).await?;
  36     let community = Community::read(context.pool(), community_id).await?;
  37     if local_user_view.person.admin && !community.local {
  38       return Err(LemmyError::from_message("not_a_moderator"));
  39     }
  40
  41     // Update in local database
  42     let community_moderator_form = CommunityModeratorForm {
  43       community_id: data.community_id,
  44       person_id: data.person_id,
  45     };
  46     if data.added {
  47       CommunityModerator::join(context.pool(), &community_moderator_form)
  48         .await
  49         .map_err(|e| LemmyError::from_error_message(e, "community_moderator_already_exists"))?;
  50     } else {
  51       CommunityModerator::leave(context.pool(), &community_moderator_form)
  52         .await
  53         .map_err(|e| LemmyError::from_error_message(e, "community_moderator_already_exists"))?;
  54     }
  55
  56     // Mod tables
  57     let form = ModAddCommunityForm {
  58       mod_person_id: local_user_view.person.id,
  59       other_person_id: data.person_id,
  60       community_id: data.community_id,
  61       removed: Some(!data.added),
  62     };
  63
  64     ModAddCommunity::create(context.pool(), &form).await?;
  65
  66     // Note: in case a remote mod is added, this returns the old moderators list, it will only get
  67     //       updated once we receive an activity from the community (like `Announce/Add/Moderator`)
  68     let community_id = data.community_id;
  69     let moderators = CommunityModeratorView::for_community(context.pool(), community_id).await?;
  70
  71     let res = AddModToCommunityResponse { moderators };
  72     context.send_mod_ws_message(
  73       &UserOperation::AddModToCommunity,
  74       &res,
  75       community_id,
  76       websocket_id,
  77     )?;
  78
  79     Ok(res)
  80   }
  81 }