use crate::PerformCrud; use actix_web::web::Data; use lemmy_api_common::{ blocking, community::{CommunityResponse, CreateCommunity}, get_local_user_view_from_jwt, is_admin, }; use lemmy_apub::{ generate_apub_endpoint, generate_followers_url, generate_inbox_url, generate_shared_inbox_url, EndpointType, }; use lemmy_db_queries::{diesel_option_overwrite_to_url, ApubObject, Crud, Followable, Joinable}; use lemmy_db_schema::source::{ community::{ Community, CommunityFollower, CommunityFollowerForm, CommunityForm, CommunityModerator, CommunityModeratorForm, }, site::Site, }; use lemmy_db_views_actor::community_view::CommunityView; use lemmy_utils::{ apub::generate_actor_keypair, utils::{check_slurs, check_slurs_opt, is_valid_actor_name}, ApiError, ConnectionId, LemmyError, }; use lemmy_websocket::LemmyContext; #[async_trait::async_trait(?Send)] impl PerformCrud for CreateCommunity { type Response = CommunityResponse; async fn perform( &self, context: &Data, _websocket_id: Option, ) -> Result { let data: &CreateCommunity = self; let local_user_view = get_local_user_view_from_jwt(&data.auth, context.pool()).await?; let site = blocking(context.pool(), move |conn| Site::read(conn, 0)).await??; if site.community_creation_admin_only && is_admin(&local_user_view).is_err() { return Err(ApiError::err("only_admins_can_create_communities").into()); } check_slurs(&data.name)?; check_slurs(&data.title)?; check_slurs_opt(&data.description)?; if !is_valid_actor_name(&data.name) { return Err(ApiError::err("invalid_community_name").into()); } // Double check for duplicate community actor_ids let community_actor_id = generate_apub_endpoint(EndpointType::Community, &data.name)?; let actor_id_cloned = community_actor_id.to_owned(); let community_dupe = blocking(context.pool(), move |conn| { Community::read_from_apub_id(conn, &actor_id_cloned) }) .await?; if community_dupe.is_ok() { return Err(ApiError::err("community_already_exists").into()); } // Check to make sure the icon and banners are urls let icon = diesel_option_overwrite_to_url(&data.icon)?; let banner = diesel_option_overwrite_to_url(&data.banner)?; // When you create a community, make sure the user becomes a moderator and a follower let keypair = generate_actor_keypair()?; let community_form = CommunityForm { name: data.name.to_owned(), title: data.title.to_owned(), description: data.description.to_owned(), icon, banner, nsfw: data.nsfw, actor_id: Some(community_actor_id.to_owned()), private_key: Some(keypair.private_key), public_key: Some(keypair.public_key), followers_url: Some(generate_followers_url(&community_actor_id)?), inbox_url: Some(generate_inbox_url(&community_actor_id)?), shared_inbox_url: Some(Some(generate_shared_inbox_url(&community_actor_id)?)), ..CommunityForm::default() }; let inserted_community = blocking(context.pool(), move |conn| { Community::create(conn, &community_form) }) .await? .map_err(|_| ApiError::err("community_already_exists"))?; // The community creator becomes a moderator let community_moderator_form = CommunityModeratorForm { community_id: inserted_community.id, person_id: local_user_view.person.id, }; let join = move |conn: &'_ _| CommunityModerator::join(conn, &community_moderator_form); if blocking(context.pool(), join).await?.is_err() { return Err(ApiError::err("community_moderator_already_exists").into()); } // Follow your own community let community_follower_form = CommunityFollowerForm { community_id: inserted_community.id, person_id: local_user_view.person.id, pending: false, }; let follow = move |conn: &'_ _| CommunityFollower::follow(conn, &community_follower_form); if blocking(context.pool(), follow).await?.is_err() { return Err(ApiError::err("community_follower_already_exists").into()); } let person_id = local_user_view.person.id; let community_view = blocking(context.pool(), move |conn| { CommunityView::read(conn, inserted_community.id, Some(person_id)) }) .await??; Ok(CommunityResponse { community_view }) } }