fedimovies/src/activitypub/handlers/remove.rs

56 lines
1.9 KiB
Rust

use serde::Deserialize;
use serde_json::Value;
use fedimovies_config::Config;
use fedimovies_models::{
database::{DatabaseClient, DatabaseError},
notifications::queries::create_subscription_expiration_notification,
profiles::queries::get_profile_by_remote_actor_id,
relationships::queries::unsubscribe,
users::queries::get_user_by_name,
};
use crate::activitypub::{identifiers::parse_local_actor_id, vocabulary::PERSON};
use crate::errors::ValidationError;
use super::{HandlerError, HandlerResult};
#[derive(Deserialize)]
struct Remove {
actor: String,
object: String,
target: String,
}
pub async fn handle_remove(
config: &Config,
db_client: &mut impl DatabaseClient,
activity: Value,
) -> HandlerResult {
let activity: Remove = serde_json::from_value(activity.clone()).map_err(|_| {
ValidationError(format!(
"unexpected Remove activity structure: {}",
activity
))
})?;
let actor_profile = get_profile_by_remote_actor_id(db_client, &activity.actor).await?;
let actor = actor_profile.actor_json.ok_or(HandlerError::LocalObject)?;
if Some(activity.target) == actor.subscribers {
// Removing from subscribers
let username = parse_local_actor_id(&config.instance_url(), &activity.object)?;
let user = get_user_by_name(db_client, &username).await?;
// actor is recipient, user is sender
match unsubscribe(db_client, &user.id, &actor_profile.id).await {
Ok(_) => {
create_subscription_expiration_notification(db_client, &actor_profile.id, &user.id)
.await?;
return Ok(Some(PERSON));
}
// Ignore removal if relationship does not exist
Err(DatabaseError::NotFound(_)) => return Ok(None),
Err(other_error) => return Err(other_error.into()),
};
};
Ok(None)
}