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   utils::{get_local_user_view_from_jwt, is_mod_or_admin, remove_user_data_in_community},
   6 };
   7 use lemmy_apub::{
   8   activities::block::SiteOrCommunity,
   9   objects::{community::ApubCommunity, person::ApubPerson},
  10   protocol::activities::block::{block_user::BlockUser, undo_block_user::UndoBlockUser},
  11 };
  12 use lemmy_db_schema::{
  13   source::{
  14     community::{
  15       Community,
  16       CommunityFollower,
  17       CommunityFollowerForm,
  18       CommunityPersonBan,
  19       CommunityPersonBanForm,
  20     },
  21     moderator::{ModBanFromCommunity, ModBanFromCommunityForm},
  22     person::Person,
  23   },
  24   traits::{Bannable, Crud, Followable},
  25 };
  26 use lemmy_db_views_actor::structs::PersonViewSafe;
  27 use lemmy_utils::{error::LemmyError, utils::naive_from_unix, ConnectionId};
  28 use lemmy_websocket::{messages::SendCommunityRoomMessage, LemmyContext, UserOperation};
  29
  30 #[async_trait::async_trait(?Send)]
  31 impl Perform for BanFromCommunity {
  32   type Response = BanFromCommunityResponse;
  33
  34   #[tracing::instrument(skip(context, websocket_id))]
  35   async fn perform(
  36     &self,
  37     context: &Data<LemmyContext>,
  38     websocket_id: Option<ConnectionId>,
  39   ) -> Result<BanFromCommunityResponse, LemmyError> {
  40     let data: &BanFromCommunity = self;
  41     let local_user_view =
  42       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  43
  44     let community_id = data.community_id;
  45     let banned_person_id = data.person_id;
  46     let remove_data = data.remove_data.unwrap_or(false);
  47     let expires = data.expires.map(naive_from_unix);
  48
  49     // Verify that only mods or admins can ban
  50     is_mod_or_admin(context.pool(), local_user_view.person.id, community_id).await?;
  51
  52     let community_user_ban_form = CommunityPersonBanForm {
  53       community_id: data.community_id,
  54       person_id: data.person_id,
  55       expires: Some(expires),
  56     };
  57
  58     let community: ApubCommunity = Community::read(context.pool(), community_id).await?.into();
  59     let banned_person: ApubPerson = Person::read(context.pool(), banned_person_id).await?.into();
  60
  61     if data.ban {
  62       CommunityPersonBan::ban(context.pool(), &community_user_ban_form)
  63         .await
  64         .map_err(|e| LemmyError::from_error_message(e, "community_user_already_banned"))?;
  65
  66       // Also unsubscribe them from the community, if they are subscribed
  67       let community_follower_form = CommunityFollowerForm {
  68         community_id: data.community_id,
  69         person_id: banned_person_id,
  70         pending: false,
  71       };
  72
  73       CommunityFollower::unfollow(context.pool(), &community_follower_form)
  74         .await
  75         .ok();
  76
  77       BlockUser::send(
  78         &SiteOrCommunity::Community(community),
  79         &banned_person,
  80         &local_user_view.person.clone().into(),
  81         remove_data,
  82         data.reason.clone(),
  83         expires,
  84         context,
  85       )
  86       .await?;
  87     } else {
  88       CommunityPersonBan::unban(context.pool(), &community_user_ban_form)
  89         .await
  90         .map_err(|e| LemmyError::from_error_message(e, "community_user_already_banned"))?;
  91       UndoBlockUser::send(
  92         &SiteOrCommunity::Community(community),
  93         &banned_person,
  94         &local_user_view.person.clone().into(),
  95         data.reason.clone(),
  96         context,
  97       )
  98       .await?;
  99     }
 100
 101     // Remove/Restore their data if that's desired
 102     if remove_data {
 103       remove_user_data_in_community(community_id, banned_person_id, context.pool()).await?;
 104     }
 105
 106     // Mod tables
 107     let form = ModBanFromCommunityForm {
 108       mod_person_id: local_user_view.person.id,
 109       other_person_id: data.person_id,
 110       community_id: data.community_id,
 111       reason: data.reason.clone(),
 112       banned: Some(data.ban),
 113       expires,
 114     };
 115
 116     ModBanFromCommunity::create(context.pool(), &form).await?;
 117
 118     let person_id = data.person_id;
 119     let person_view = PersonViewSafe::read(context.pool(), person_id).await?;
 120
 121     let res = BanFromCommunityResponse {
 122       person_view,
 123       banned: data.ban,
 124     };
 125
 126     context.chat_server().do_send(SendCommunityRoomMessage {
 127       op: UserOperation::BanFromCommunity,
 128       response: res.clone(),
 129       community_id,
 130       websocket_id,
 131     });
 132
 133     Ok(res)
 134   }
 135 }