crates/api/src/community/ban.rs

   1 use crate::Perform;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   community::{BanFromCommunity, BanFromCommunityResponse},
   5   context::LemmyContext,
   6   utils::{get_local_user_view_from_jwt, is_mod_or_admin, remove_user_data_in_community},
   7   websocket::{
   8     handlers::messages::SendCommunityRoomMessage,
   9     serialize_websocket_message,
  10     UserOperation,
  11   },
  12 };
  13 use lemmy_db_schema::{
  14   source::{
  15     community::{
  16       CommunityFollower,
  17       CommunityFollowerForm,
  18       CommunityPersonBan,
  19       CommunityPersonBanForm,
  20     },
  21     moderator::{ModBanFromCommunity, ModBanFromCommunityForm},
  22   },
  23   traits::{Bannable, Crud, Followable},
  24 };
  25 use lemmy_db_views_actor::structs::PersonView;
  26 use lemmy_utils::{error::LemmyError, utils::time::naive_from_unix, ConnectionId};
  27
  28 #[async_trait::async_trait(?Send)]
  29 impl Perform for BanFromCommunity {
  30   type Response = BanFromCommunityResponse;
  31
  32   #[tracing::instrument(skip(context, websocket_id))]
  33   async fn perform(
  34     &self,
  35     context: &Data<LemmyContext>,
  36     websocket_id: Option<ConnectionId>,
  37   ) -> Result<BanFromCommunityResponse, LemmyError> {
  38     let data: &BanFromCommunity = self;
  39     let local_user_view =
  40       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  41
  42     let community_id = data.community_id;
  43     let banned_person_id = data.person_id;
  44     let remove_data = data.remove_data.unwrap_or(false);
  45     let expires = data.expires.map(naive_from_unix);
  46
  47     // Verify that only mods or admins can ban
  48     is_mod_or_admin(context.pool(), local_user_view.person.id, community_id).await?;
  49
  50     let community_user_ban_form = CommunityPersonBanForm {
  51       community_id: data.community_id,
  52       person_id: data.person_id,
  53       expires: Some(expires),
  54     };
  55
  56     if data.ban {
  57       CommunityPersonBan::ban(context.pool(), &community_user_ban_form)
  58         .await
  59         .map_err(|e| LemmyError::from_error_message(e, "community_user_already_banned"))?;
  60
  61       // Also unsubscribe them from the community, if they are subscribed
  62       let community_follower_form = CommunityFollowerForm {
  63         community_id: data.community_id,
  64         person_id: banned_person_id,
  65         pending: false,
  66       };
  67
  68       CommunityFollower::unfollow(context.pool(), &community_follower_form)
  69         .await
  70         .ok();
  71     } else {
  72       CommunityPersonBan::unban(context.pool(), &community_user_ban_form)
  73         .await
  74         .map_err(|e| LemmyError::from_error_message(e, "community_user_already_banned"))?;
  75     }
  76
  77     // Remove/Restore their data if that's desired
  78     if remove_data {
  79       remove_user_data_in_community(community_id, banned_person_id, context.pool()).await?;
  80     }
  81
  82     // Mod tables
  83     let form = ModBanFromCommunityForm {
  84       mod_person_id: local_user_view.person.id,
  85       other_person_id: data.person_id,
  86       community_id: data.community_id,
  87       reason: data.reason.clone(),
  88       banned: Some(data.ban),
  89       expires,
  90     };
  91
  92     ModBanFromCommunity::create(context.pool(), &form).await?;
  93
  94     let person_id = data.person_id;
  95     let person_view = PersonView::read(context.pool(), person_id).await?;
  96
  97     let res = BanFromCommunityResponse {
  98       person_view,
  99       banned: data.ban,
 100     };
 101
 102     // A custom ban message
 103     let message = serialize_websocket_message(&UserOperation::BanFromCommunity, &res)?;
 104     context.chat_server().do_send(SendCommunityRoomMessage {
 105       community_id,
 106       message,
 107       websocket_id,
 108     });
 109
 110     Ok(res)
 111   }
 112 }