1 use crate::PerformCrud;
2 use actix_web::web::Data;
3 use lemmy_api_common::{
5 check_image_has_local_domain,
6 community::{CommunityResponse, CreateCommunity},
7 get_local_user_view_from_jwt,
11 generate_followers_url,
13 generate_local_apub_endpoint,
14 generate_shared_inbox_url,
15 objects::community::ApubCommunity,
18 use lemmy_apub_lib::object_id::ObjectId;
19 use lemmy_db_schema::{
20 diesel_option_overwrite_to_url,
25 CommunityFollowerForm,
28 CommunityModeratorForm,
32 traits::{Crud, Followable, Joinable},
34 use lemmy_db_views_actor::community_view::CommunityView;
36 apub::generate_actor_keypair,
37 utils::{check_slurs, check_slurs_opt, is_valid_actor_name},
41 use lemmy_websocket::LemmyContext;
43 #[async_trait::async_trait(?Send)]
44 impl PerformCrud for CreateCommunity {
45 type Response = CommunityResponse;
47 #[tracing::instrument(skip(context, _websocket_id))]
50 context: &Data<LemmyContext>,
51 _websocket_id: Option<ConnectionId>,
52 ) -> Result<CommunityResponse, LemmyError> {
53 let data: &CreateCommunity = self;
55 get_local_user_view_from_jwt(&data.auth, context.pool(), context.secret()).await?;
57 let site = blocking(context.pool(), Site::read_local_site).await??;
58 if site.community_creation_admin_only && is_admin(&local_user_view).is_err() {
59 return Err(LemmyError::from_message(
60 "only_admins_can_create_communities",
64 // Check to make sure the icon and banners are urls
65 let icon = diesel_option_overwrite_to_url(&data.icon)?;
66 let banner = diesel_option_overwrite_to_url(&data.banner)?;
68 check_slurs(&data.name, &context.settings().slur_regex())?;
69 check_slurs(&data.title, &context.settings().slur_regex())?;
70 check_slurs_opt(&data.description, &context.settings().slur_regex())?;
71 check_image_has_local_domain(icon.as_ref().unwrap_or(&None))?;
72 check_image_has_local_domain(banner.as_ref().unwrap_or(&None))?;
74 if !is_valid_actor_name(&data.name, context.settings().actor_name_max_length) {
75 return Err(LemmyError::from_message("invalid_community_name"));
78 // Double check for duplicate community actor_ids
79 let community_actor_id = generate_local_apub_endpoint(
80 EndpointType::Community,
82 &context.settings().get_protocol_and_hostname(),
84 let community_actor_id_wrapped = ObjectId::<ApubCommunity>::new(community_actor_id.clone());
85 let community_dupe = community_actor_id_wrapped.dereference_local(context).await;
86 if community_dupe.is_ok() {
87 return Err(LemmyError::from_message("community_already_exists"));
90 // When you create a community, make sure the user becomes a moderator and a follower
91 let keypair = generate_actor_keypair()?;
93 let community_form = CommunityForm {
94 name: data.name.to_owned(),
95 title: data.title.to_owned(),
96 description: data.description.to_owned(),
100 actor_id: Some(community_actor_id.to_owned()),
101 private_key: Some(Some(keypair.private_key)),
102 public_key: keypair.public_key,
103 followers_url: Some(generate_followers_url(&community_actor_id)?),
104 inbox_url: Some(generate_inbox_url(&community_actor_id)?),
105 shared_inbox_url: Some(Some(generate_shared_inbox_url(&community_actor_id)?)),
106 ..CommunityForm::default()
109 let inserted_community = blocking(context.pool(), move |conn| {
110 Community::create(conn, &community_form)
113 .map_err(|e| LemmyError::from_error_message(e, "community_already_exists"))?;
115 // The community creator becomes a moderator
116 let community_moderator_form = CommunityModeratorForm {
117 community_id: inserted_community.id,
118 person_id: local_user_view.person.id,
121 let join = move |conn: &'_ _| CommunityModerator::join(conn, &community_moderator_form);
122 blocking(context.pool(), join)
124 .map_err(|e| LemmyError::from_error_message(e, "community_moderator_already_exists"))?;
126 // Follow your own community
127 let community_follower_form = CommunityFollowerForm {
128 community_id: inserted_community.id,
129 person_id: local_user_view.person.id,
133 let follow = move |conn: &'_ _| CommunityFollower::follow(conn, &community_follower_form);
134 blocking(context.pool(), follow)
136 .map_err(|e| LemmyError::from_error_message(e, "community_follower_already_exists"))?;
138 let person_id = local_user_view.person.id;
139 let community_view = blocking(context.pool(), move |conn| {
140 CommunityView::read(conn, inserted_community.id, Some(person_id))
144 Ok(CommunityResponse { community_view })