3 fetcher::resolve_actor_identifier,
4 objects::community::ApubCommunity,
6 use activitypub_federation::config::Data;
7 use lemmy_api_common::{
8 community::{GetCommunity, GetCommunityResponse},
10 utils::{check_private_instance, get_local_user_view_from_jwt_opt, is_mod_or_admin_opt},
12 use lemmy_db_schema::{
13 impls::actor_language::default_post_language,
15 actor_language::CommunityLanguage,
17 local_site::LocalSite,
21 use lemmy_db_views_actor::structs::{CommunityModeratorView, CommunityView};
22 use lemmy_utils::{error::LemmyError, ConnectionId};
24 #[async_trait::async_trait]
25 impl PerformApub for GetCommunity {
26 type Response = GetCommunityResponse;
28 #[tracing::instrument(skip(context, _websocket_id))]
31 context: &Data<LemmyContext>,
32 _websocket_id: Option<ConnectionId>,
33 ) -> Result<GetCommunityResponse, LemmyError> {
34 let data: &GetCommunity = self;
36 get_local_user_view_from_jwt_opt(data.auth.as_ref(), context.pool(), context.secret())
38 let local_site = LocalSite::read(context.pool()).await?;
40 if data.name.is_none() && data.id.is_none() {
41 return Err(LemmyError::from_message("no_id_given"));
44 check_private_instance(&local_user_view, &local_site)?;
46 let person_id = local_user_view.as_ref().map(|u| u.person.id);
48 let community_id = match data.id {
51 let name = data.name.clone().unwrap_or_else(|| "main".to_string());
52 resolve_actor_identifier::<ApubCommunity, Community>(&name, context, &local_user_view, true)
54 .map_err(|e| e.with_message("couldnt_find_community"))?
60 is_mod_or_admin_opt(context.pool(), local_user_view.as_ref(), Some(community_id))
64 let community_view = CommunityView::read(
68 Some(is_mod_or_admin),
71 .map_err(|e| LemmyError::from_error_message(e, "couldnt_find_community"))?;
73 let moderators = CommunityModeratorView::for_community(context.pool(), community_id)
75 .map_err(|e| LemmyError::from_error_message(e, "couldnt_find_community"))?;
79 .get_community_users_online(community_id)?;
82 Site::instance_actor_id_from_url(community_view.community.actor_id.clone().into());
83 let mut site = Site::read_from_apub_id(context.pool(), &site_id.into()).await?;
84 // no need to include metadata for local site (its already available through other endpoints).
85 // this also prevents us from leaking the federation private key.
86 if let Some(s) = &site {
87 if s.actor_id.domain() == Some(context.settings().hostname.as_ref()) {
92 let community_id = community_view.community.id;
93 let discussion_languages = CommunityLanguage::read(context.pool(), community_id).await?;
94 let default_post_language = if let Some(user) = local_user_view {
95 default_post_language(context.pool(), community_id, user.local_user.id).await?
100 let res = GetCommunityResponse {
105 discussion_languages,
106 default_post_language,