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