1 use crate::PerformCrud;
2 use actix_web::web::Data;
3 use lemmy_api_common::{
5 community::{CommunityResponse, CreateCommunity},
6 get_local_user_view_from_jwt,
10 fetcher::object_id::ObjectId,
11 generate_apub_endpoint,
12 generate_followers_url,
14 generate_shared_inbox_url,
17 use lemmy_db_queries::{diesel_option_overwrite_to_url, Crud, Followable, Joinable};
18 use lemmy_db_schema::source::{
22 CommunityFollowerForm,
25 CommunityModeratorForm,
29 use lemmy_db_views_actor::community_view::CommunityView;
31 apub::generate_actor_keypair,
32 utils::{check_slurs, check_slurs_opt, is_valid_actor_name},
37 use lemmy_websocket::LemmyContext;
39 #[async_trait::async_trait(?Send)]
40 impl PerformCrud for CreateCommunity {
41 type Response = CommunityResponse;
45 context: &Data<LemmyContext>,
46 _websocket_id: Option<ConnectionId>,
47 ) -> Result<CommunityResponse, LemmyError> {
48 let data: &CreateCommunity = self;
50 get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
52 let site = blocking(context.pool(), move |conn| Site::read(conn, 0)).await??;
53 if site.community_creation_admin_only && is_admin(&local_user_view).is_err() {
54 return Err(ApiError::err("only_admins_can_create_communities").into());
57 check_slurs(&data.name, &context.settings().slur_regex())?;
58 check_slurs(&data.title, &context.settings().slur_regex())?;
59 check_slurs_opt(&data.description, &context.settings().slur_regex())?;
61 if !is_valid_actor_name(&data.name, context.settings().actor_name_max_length) {
62 return Err(ApiError::err("invalid_community_name").into());
65 // Double check for duplicate community actor_ids
66 let community_actor_id = generate_apub_endpoint(
67 EndpointType::Community,
69 &context.settings().get_protocol_and_hostname(),
71 let community_actor_id_wrapped = ObjectId::<Community>::new(community_actor_id.clone());
72 let community_dupe = community_actor_id_wrapped.dereference_local(context).await;
73 if community_dupe.is_ok() {
74 return Err(ApiError::err("community_already_exists").into());
77 // Check to make sure the icon and banners are urls
78 let icon = diesel_option_overwrite_to_url(&data.icon)?;
79 let banner = diesel_option_overwrite_to_url(&data.banner)?;
81 // When you create a community, make sure the user becomes a moderator and a follower
82 let keypair = generate_actor_keypair()?;
84 let community_form = CommunityForm {
85 name: data.name.to_owned(),
86 title: data.title.to_owned(),
87 description: data.description.to_owned(),
91 actor_id: Some(community_actor_id.to_owned()),
92 private_key: Some(keypair.private_key),
93 public_key: Some(keypair.public_key),
94 followers_url: Some(generate_followers_url(&community_actor_id)?),
95 inbox_url: Some(generate_inbox_url(&community_actor_id)?),
96 shared_inbox_url: Some(Some(generate_shared_inbox_url(&community_actor_id)?)),
97 ..CommunityForm::default()
100 let inserted_community = blocking(context.pool(), move |conn| {
101 Community::create(conn, &community_form)
104 .map_err(|_| ApiError::err("community_already_exists"))?;
106 // The community creator becomes a moderator
107 let community_moderator_form = CommunityModeratorForm {
108 community_id: inserted_community.id,
109 person_id: local_user_view.person.id,
112 let join = move |conn: &'_ _| CommunityModerator::join(conn, &community_moderator_form);
113 if blocking(context.pool(), join).await?.is_err() {
114 return Err(ApiError::err("community_moderator_already_exists").into());
117 // Follow your own community
118 let community_follower_form = CommunityFollowerForm {
119 community_id: inserted_community.id,
120 person_id: local_user_view.person.id,
124 let follow = move |conn: &'_ _| CommunityFollower::follow(conn, &community_follower_form);
125 if blocking(context.pool(), follow).await?.is_err() {
126 return Err(ApiError::err("community_follower_already_exists").into());
129 let person_id = local_user_view.person.id;
130 let community_view = blocking(context.pool(), move |conn| {
131 CommunityView::read(conn, inserted_community.id, Some(person_id))
135 Ok(CommunityResponse { community_view })