crates/api_crud/src/community/update.rs

   1 use crate::PerformCrud;
   2 use actix_web::web::Data;
   3 use lemmy_api_common::{
   4   community::{CommunityResponse, EditCommunity},
   5   utils::{blocking, get_local_user_view_from_jwt},
   6 };
   7 use lemmy_apub::protocol::activities::community::update::UpdateCommunity;
   8 use lemmy_db_schema::{
   9   newtypes::{LanguageId, PersonId},
  10   source::{
  11     actor_language::{CommunityLanguage, SiteLanguage},
  12     community::{Community, CommunityForm},
  13   },
  14   traits::Crud,
  15   utils::{diesel_option_overwrite, diesel_option_overwrite_to_url, naive_now},
  16 };
  17 use lemmy_db_views_actor::structs::CommunityModeratorView;
  18 use lemmy_utils::{error::LemmyError, utils::check_slurs_opt, ConnectionId};
  19 use lemmy_websocket::{send::send_community_ws_message, LemmyContext, UserOperationCrud};
  20
  21 #[async_trait::async_trait(?Send)]
  22 impl PerformCrud for EditCommunity {
  23   type Response = CommunityResponse;
  24
  25   #[tracing::instrument(skip(context, websocket_id))]
  26   async fn perform(
  27     &self,
  28     context: &Data<LemmyContext>,
  29     websocket_id: Option<ConnectionId>,
  30   ) -> Result<CommunityResponse, LemmyError> {
  31     let data: &EditCommunity = self;
  32     let local_user_view =
  33       get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
  34
  35     let icon = diesel_option_overwrite_to_url(&data.icon)?;
  36     let banner = diesel_option_overwrite_to_url(&data.banner)?;
  37     let description = diesel_option_overwrite(&data.description);
  38
  39     check_slurs_opt(&data.title, &context.settings().slur_regex())?;
  40     check_slurs_opt(&data.description, &context.settings().slur_regex())?;
  41
  42     // Verify its a mod (only mods can edit it)
  43     let community_id = data.community_id;
  44     let mods: Vec<PersonId> = blocking(context.pool(), move |conn| {
  45       CommunityModeratorView::for_community(conn, community_id)
  46         .map(|v| v.into_iter().map(|m| m.moderator.id).collect())
  47     })
  48     .await??;
  49     if !mods.contains(&local_user_view.person.id) {
  50       return Err(LemmyError::from_message("not_a_moderator"));
  51     }
  52
  53     let community_id = data.community_id;
  54     if let Some(languages) = data.discussion_languages.clone() {
  55       let site_languages: Vec<LanguageId> =
  56         blocking(context.pool(), SiteLanguage::read_local).await??;
  57       // check that community languages are a subset of site languages
  58       // https://stackoverflow.com/a/64227550
  59       let is_subset = languages.iter().all(|item| site_languages.contains(item));
  60       if !is_subset {
  61         return Err(LemmyError::from_message("language_not_allowed"));
  62       }
  63       blocking(context.pool(), move |conn| {
  64         CommunityLanguage::update(conn, languages, community_id)
  65       })
  66       .await??;
  67     }
  68
  69     let read_community = blocking(context.pool(), move |conn| {
  70       Community::read(conn, community_id)
  71     })
  72     .await??;
  73
  74     let community_form = CommunityForm {
  75       name: read_community.name,
  76       title: data.title.to_owned().unwrap_or(read_community.title),
  77       description,
  78       icon,
  79       banner,
  80       nsfw: data.nsfw,
  81       posting_restricted_to_mods: data.posting_restricted_to_mods,
  82       updated: Some(naive_now()),
  83       ..CommunityForm::default()
  84     };
  85
  86     let community_id = data.community_id;
  87     let updated_community = blocking(context.pool(), move |conn| {
  88       Community::update(conn, community_id, &community_form)
  89     })
  90     .await?
  91     .map_err(|e| LemmyError::from_error_message(e, "couldnt_update_community"))?;
  92
  93     UpdateCommunity::send(
  94       updated_community.into(),
  95       &local_user_view.person.into(),
  96       context,
  97     )
  98     .await?;
  99
 100     let op = UserOperationCrud::EditCommunity;
 101     send_community_ws_message(data.community_id, op, websocket_id, None, context).await
 102   }
 103 }