lemmy/server/src/apub/community_inbox.rs

61 lines
1.8 KiB
Rust

use crate::apub::activities::accept_follow;
use crate::apub::fetcher::fetch_remote_user;
use crate::db::community::{Community, CommunityFollower, CommunityFollowerForm};
use crate::db::Followable;
use activitystreams::activity::Follow;
use actix_web::{web, HttpResponse};
use diesel::r2d2::{ConnectionManager, Pool};
use diesel::PgConnection;
use failure::Error;
use log::debug;
use serde::Deserialize;
use url::Url;
#[serde(untagged)]
#[derive(Deserialize, Debug)]
pub enum CommunityAcceptedObjects {
Follow(Follow),
}
/// Handler for all incoming activities to community inboxes.
pub async fn community_inbox(
input: web::Json<CommunityAcceptedObjects>,
path: web::Path<String>,
db: web::Data<Pool<ConnectionManager<PgConnection>>>,
) -> Result<HttpResponse, Error> {
let input = input.into_inner();
let conn = &db.get().unwrap();
debug!(
"Community {} received activity {:?}",
&path.into_inner(),
&input
);
match input {
CommunityAcceptedObjects::Follow(f) => handle_follow(&f, conn),
}
}
/// Handle a follow request from a remote user, adding it to the local database and returning an
/// Accept activity.
fn handle_follow(follow: &Follow, conn: &PgConnection) -> Result<HttpResponse, Error> {
// TODO: make sure this is a local community
let community_uri = follow
.follow_props
.get_object_xsd_any_uri()
.unwrap()
.to_string();
let community = Community::read_from_actor_id(conn, &community_uri)?;
let user_uri = follow
.follow_props
.get_actor_xsd_any_uri()
.unwrap()
.to_string();
let user = fetch_remote_user(&Url::parse(&user_uri)?, conn)?;
let community_follower_form = CommunityFollowerForm {
community_id: community.id,
user_id: user.id,
};
CommunityFollower::follow(&conn, &community_follower_form)?;
accept_follow(&follow)?;
Ok(HttpResponse::Ok().finish())
}