1 use crate::PerformCrud;
2 use actix_web::web::Data;
3 use lemmy_api_common::{
4 community::{CommunityResponse, CreateCommunity},
5 utils::{blocking, check_image_has_local_domain, get_local_user_view_from_jwt, is_admin},
8 generate_followers_url,
10 generate_local_apub_endpoint,
11 generate_shared_inbox_url,
12 objects::community::ApubCommunity,
15 use lemmy_apub_lib::object_id::ObjectId;
16 use lemmy_db_schema::{
21 CommunityFollowerForm,
24 CommunityModeratorForm,
28 traits::{Crud, Followable, Joinable},
29 utils::diesel_option_overwrite_to_url,
31 use lemmy_db_views_actor::structs::CommunityView;
33 apub::generate_actor_keypair,
34 utils::{check_slurs, check_slurs_opt, is_valid_actor_name},
38 use lemmy_websocket::LemmyContext;
40 #[async_trait::async_trait(?Send)]
41 impl PerformCrud for CreateCommunity {
42 type Response = CommunityResponse;
44 #[tracing::instrument(skip(context, _websocket_id))]
47 context: &Data<LemmyContext>,
48 _websocket_id: Option<ConnectionId>,
49 ) -> Result<CommunityResponse, LemmyError> {
50 let data: &CreateCommunity = self;
52 get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
54 let site = blocking(context.pool(), Site::read_local_site).await??;
55 if site.community_creation_admin_only && is_admin(&local_user_view).is_err() {
56 return Err(LemmyError::from_message(
57 "only_admins_can_create_communities",
61 // Check to make sure the icon and banners are urls
62 let icon = diesel_option_overwrite_to_url(&data.icon)?;
63 let banner = diesel_option_overwrite_to_url(&data.banner)?;
65 check_slurs(&data.name, &context.settings().slur_regex())?;
66 check_slurs(&data.title, &context.settings().slur_regex())?;
67 check_slurs_opt(&data.description, &context.settings().slur_regex())?;
68 check_image_has_local_domain(icon.as_ref().unwrap_or(&None))?;
69 check_image_has_local_domain(banner.as_ref().unwrap_or(&None))?;
71 if !is_valid_actor_name(&data.name, context.settings().actor_name_max_length) {
72 return Err(LemmyError::from_message("invalid_community_name"));
75 // Double check for duplicate community actor_ids
76 let community_actor_id = generate_local_apub_endpoint(
77 EndpointType::Community,
79 &context.settings().get_protocol_and_hostname(),
81 let community_actor_id_wrapped = ObjectId::<ApubCommunity>::new(community_actor_id.clone());
82 let community_dupe = community_actor_id_wrapped.dereference_local(context).await;
83 if community_dupe.is_ok() {
84 return Err(LemmyError::from_message("community_already_exists"));
87 // When you create a community, make sure the user becomes a moderator and a follower
88 let keypair = generate_actor_keypair()?;
90 let community_form = CommunityForm {
91 name: data.name.to_owned(),
92 title: data.title.to_owned(),
93 description: data.description.to_owned(),
97 actor_id: Some(community_actor_id.to_owned()),
98 private_key: Some(Some(keypair.private_key)),
99 public_key: keypair.public_key,
100 followers_url: Some(generate_followers_url(&community_actor_id)?),
101 inbox_url: Some(generate_inbox_url(&community_actor_id)?),
102 shared_inbox_url: Some(Some(generate_shared_inbox_url(&community_actor_id)?)),
103 posting_restricted_to_mods: data.posting_restricted_to_mods,
104 ..CommunityForm::default()
107 let inserted_community = blocking(context.pool(), move |conn| {
108 Community::create(conn, &community_form)
111 .map_err(|e| LemmyError::from_error_message(e, "community_already_exists"))?;
113 // The community creator becomes a moderator
114 let community_moderator_form = CommunityModeratorForm {
115 community_id: inserted_community.id,
116 person_id: local_user_view.person.id,
119 let join = move |conn: &'_ _| CommunityModerator::join(conn, &community_moderator_form);
120 blocking(context.pool(), join)
122 .map_err(|e| LemmyError::from_error_message(e, "community_moderator_already_exists"))?;
124 // Follow your own community
125 let community_follower_form = CommunityFollowerForm {
126 community_id: inserted_community.id,
127 person_id: local_user_view.person.id,
131 let follow = move |conn: &'_ _| CommunityFollower::follow(conn, &community_follower_form);
132 blocking(context.pool(), follow)
134 .map_err(|e| LemmyError::from_error_message(e, "community_follower_already_exists"))?;
136 let person_id = local_user_view.person.id;
137 let community_view = blocking(context.pool(), move |conn| {
138 CommunityView::read(conn, inserted_community.id, Some(person_id))
142 Ok(CommunityResponse { community_view })